Contents Safe Usage/Explanatory notes for customers Definitions of Terminology Gasket Selection 3 5 High Temperature Use Sheet Gaskets Joint Sheets

Transcription

1 GASKETS

2 Contents Safe Usage/Explanatory notes for customers 1 Definitions of Terminology 2 Gasket Selection 35 High Temperature Use Sheet Gaskets 6 Joint Sheets 713 Vortex Gaskets 1229 Metal Gaskets 3036 Metal Jacketed Gaskets 3739 GRASEAL Gaskets 4041 NAFLON Gaskets 4253 Cloth Gaskets 5455 Rubber Gaskets 5657 Other Gaskets 5859 Gasket Paste 6061 Standard Dimension Charts Numerical Index

3 Safe Usage Please observe the following in order to obtain the full function of the products and to ensure safe usage. CAUTIONS Properties/applications shown throughout this catalog are typical. Performance data referred to in this catalog are based on our own test results and on performance in general applications under normal conditions. Products listed in this catalog are used in diverse locations and for numerous types of machinery and equipment, and actual conditions of use also differ extensively. Consequently, when using these products, we recommend that you implement verification tests under the actual conditions of use. Regarding individual applications, it is necessary to make a selection decision based on individual designs and on suitability evaluations. For special applications, please consult us. The contents of this catalog are subject to change without prior notice. 1. Never use for any purpose other than the prescribed application. 2. When processing, use sharp cutting tools. 3. Always follow the instructions in this catalog or the instruction manual when installing equipment, etc. 4. Do not re-use gaskets unless this is specifically indicated. 5. When replacing, carefully remove all of the old material before installing the new product. 6. To maintain performance, store packaged products in a cool and dark place. 7. Please refer to MSDS (Material Safety Data Sheet) concerning health and hygiene cautions. 8. When disposing, comply with all regulations in your country. Waste should be properly disposed of at a permitted disposal site. Do not incinerate the used products, especially those containing fluoropolymer resin as it will generate toxic gas when burning. Explanatory notes for customers The following signs and abbreviations are used in this catalogue. TOMBO TOMBO is a registered trademark of NICHIAS Corporation. JIS JPI ASME API BS ISO Japanese Industrial Standards The Japan Petroleum Institute American Society of Mechanical Engineers American Petroleum Institute British Standards International Organization for Standardization All brand names and product names are trademarks or registered trademarks of NICHIAS Corporation. 1

4 Definitions of Terminology Fluids In this catalog, the fluids sealed with gaskets are classified as follows. Depending on the type of gasket, however, there are various cases where one type of gasket cannot always be used in the same way for the same fluid. (1) Water type fluids Water, brine, hot water, steam, superheated steam. (2) Oil type fluids Crude oil, volatile oil, naphtha, kerosene, heavy oil, LPG, alcohol, furfural, ethylene glycol, ethylene, prophylene, B-B fraction, butadiene, liquid ammonia, phenol, acrylonitrile, acetone, acetoaldehyde, benzene, toluene, xylene, ethylbenzene, cyclohexane, tetramethysulphon, tetraethyl lead, etc. (3) Corrosive fluids Acids such as mineral acids, organic acids, mixed acids, acidic solutions, etc., and alkalis. (4) Gas type fluids Air, nitrogen gas, combustible gas, combustion promoting gas, incombustible gas, toxic gas, etc. Places where there is little danger even with some leakage amount of air, nitrogen gas, etc., may also be considered safe like water type fluids; however, the necessary tightening pressure must be secured. (5) Low-temperature fluids LPG, liquid ethylene, LNG, liquid nitrogen, liquid air, etc. Minimum Seating Stress Normally, the Wm1 and Wm2 (refer to the equation below) specified in JIS B 8265, etc., may be used as the criterion for determining the required seating stress. Wm1= π G 2 P+2πbGmP 4 Wm2=πbGy P = internal pressure G = effective gasket diameter b = effective gasket width m= gasket factor y = minimum designed seating stress In some cases, however, this seating stress may not be sufficient depending on certain types of fluids and or certain types of gaskets. So, among the three seating stresses (Wm1, Wm2, Wm3), the largest value shall be employed as the minimum seating stress. Wm3=3 Ag 3= minimum seating stress Ag = gasket contact area (projected surface area) The minimum seating stresses used in this catalog is "3" in the above equation, and not "y". 2

5 Gasket Selection Please select a gasket from the following gasket selection table considering 1fluid, 2pressure and 3temperature. 1Fluid Operating conditions 2 Temperature Recommended gasket 3 Pressure MPa TOMBO No. Product name C-G Ring Joint Gasket R-GS Vortex Gasket GS C-F Ring Joint Gasket R-GR GRASEAL Vortex Gasket ,1210-A GRASEAL Gasket PM, MI-A C-F Ring Joint Gasket R-GR GRASEAL Vortex Gasket R-NA NA Vortex Gasket C-F Ring Joint Gasket Steam R-GR GRASEAL Vortex Gasket Hot water R-NA NA Vortex Gasket CLINSIL-Top Water LC NAFLON PTFE Low Creep Gasket SC NAFLON PTFE Special Filler Filled Cut Gasket Salt water (Brine) G20 Glass Fiber Filled PTFE Cut Gasket NA-A-7 NAFLON PTFE Cushion Gasket C-F Ring Joint Gasket R-GR GRASEAL Vortex Gasket R-NA NA Vortex Gasket CLINSIL-TOP CLINSIL-Brown CR Cloth Reinforced Rubber Cut Gasket NAFLON PTFE Cut Gasket C-G Ring Joint Gasket R-GS Vortex Gasket GS C-F Ring Joint Gasket R-GR GRASEAL Vortex Gasket ,1210-A GRASEAL Gasket PM, MI-A Petroleumbased C-F Ring Joint Gasket carbonated hydrogen Gasoline R-GR 1834R-NA 1850C-F GRASEAL Vortex Gasket NA Vortex Gasket Ring Joint Gasket Naphtha R-GR GRASEAL Vortex Gasket 260 Kerosene R-NA NA Vortex Gasket Light oil CLINSIL-Top Heavy oil Lubricating oil LC NAFLON PTFE Low Creep Gasket 200 Oil gas SC NAFLON PTFE Special Filler Filled Cut Gasket LPG G20 Glass Fiber Filled PTFE Cut Gasket 150 Alcohol NA-A-7 NAFLON PTFE Cushion Gasket C-F Ring Joint Gasket Animal and R-GR GRASEAL Vortex Gasket vegetable oils R-NA NA Vortex Gasket CLINSIL-Top CLINSIL-Brown NAFLON PTFE Cut Gasket LP NAFLON PFA Gasket This selection guide shows typical recommended gaskets for fluids, temperatures and pressures. Thus, depending on the other conditions, the products shown here are not necessarily suitable for use in some cases. Please refer to service temperature range of each gasket on this catalog regard the maximum service temperature. In some cases, the product numbers shown here are only representative examples for that type. Remarks 3

6 Gasket Selection 1Fluid 2 Temperature Aromaticsbased carbonated hydrogen Benzene Toluene Xylene Organic solutions Heat transfer solutions Weak acid Weak alkali Salt solutions Acids Sulphuric acid Hydrochloric acid Nitric acid Acetic acid Operating conditions 3 Pressure MPa TOMBO No C-G R-GS C-F R-GR ,1210-A C-F R-GR R-NA C-F R-GR R-NA LC SC G NA-A C-F R-GR R-NA LC NA-A-5, LP R-GR R-NA ,1210-A LC SC G NA-A R-GR R-NA IOR LC SC G NA-A IOR LC NA-A-5, Recommended gasket Product name Ring Joint Gasket Vortex Gasket GS Ring Joint Gasket GRASEAL Vortex Gasket GRASEAL Gasket PM, MI-A Ring Joint Gasket GRASEAL Vortex Gasket NA Vortex Gasket Ring Joint Gasket GRASEAL Vortex Gasket NA Vortex Gasket NAFLON PTFE Low Creep Gasket NAFLON PTFE Special Filler Filled Cut Gasket Glass Fiber Filled PTFE Cut Gasket NAFLON PTFE Cushion Gasket Ring Joint Gasket GRASEAL Vortex Gasket NA Vortex Gasket NAFLON PTFE Low Creep Gasket NAFLON PTFE Cushion Gasket NAFLON PTFE Cut Gasket NAFLON PFA Gasket GRASEAL Vortex Gasket NA Vortex Gasket GRASEAL Gasket PM, MI-A CLINSIL-Top NAFLON PTFE Low Creep Gasket NAFLON PTFE Special Filler Filled Cut Gasket Glass Fiber Filled PTFE Cut Gasket NAFLON PTFE Cushion Gasket GRASEAL Vortex Gasket NA Vortex Gasket CLINSIL-Top CLINSIL-Brown NAFLON PTFE Cut Gasket NAFLON Vortex Gasket NAFLON PTFE Low Creep Gasket NAFLON PTFE Special Filler Filled Cut Gasket Glass Fiber Filled PTFE Cut Gasket NAFLON PTFE Cushion Gasket NAFLON Vortex Gasket NAFLON PTFE Low Creep Gasket NAFLON PTFE Cushion Gasket NAFLON PTFE Cut Gasket Remarks 4

7 Gasket Selection 1Fluid Alkali Caustic soda Caustic potassium Air Exhaust gas Combustible gas Toxic gas Hydrogen gas Ammonia Oxygen gas Low-temperature fluids Liquid gas LNG, LN2 LO2, Ethylene Operating conditions 2 Temperature 3 Pressure MPa TOMBO No R-GR ,1210-A SC NA-A R-NA SC NA-A-5, Fi-G R-GR LC SC NA-A G NA-A EP ST TH C-G C-F R-GR C-F R-GR R-NA C-F R-GR IOR R-NA LC G NA-A LP C-F IOR-OX NA-A LC R-GR R LN Recommended gasket Product name GRASEAL Vortex Gasket GRASEAL Gasket PM, MI-A NAFLON PTFE Special Filler Filled Cut Gasket NAFLON PTFE Cushion Gasket NA Vortex Gasket NAFLON PTFE Special Filler Filled Cut Gasket CLINSIL-Top NAFLON PTFE Cushion Gasket NAFLON PTFE Cut Gasket High-temperature NA Metal Jacketed Gasket GRASEAL Vortex Gasket CLINSIL-Top NAFLON PTFE Low Creep Gasket NAFLON PTFE Special Filler Filled Cut Gasket NAFLON PTFE Cushion Gasket Glass Fiber Filled PTFE Cut Gasket NAFLON PTFE Cushion Gasket CLINSIL-Brown Rubber Cut gasket NAFLON PTFE Cut Gasket Super Manhole Gasket-ST FF Manhole Gasket NA Manhole Gasket CLINSIL-Top CLINSIL-Brown Ring Joint Gasket Ring Joint Gasket GRASEAL Vortex Gasket Ring Joint Gasket GRASEAL Vortex Gasket NA Vortex Gasket Ring Joint Gasket GRASEAL Vortex Gasket NAFLON Vortex Gasket NA Vortex Gasket NAFLON PTFE Low Creep Gasket Glass Fiber Filled PTFE Cut Gasket NAFLON PTFE Cushion Gasket NAFLON PTFE Cut Gasket NAFLON PFA Gasket Ring Joint Gasket NAFLON Vortex Gasket NAFLON PTFE Cushion Gasket NAFLON PTFE Low Creep Gasket GRASEAL Vortex Gasket GRASEAL Vortex Gasket L CLINSIL-Top LN Remarks Used together with high-temperature gasket paste. Used together with gasket paste. Suitable for applications where slight leakage is permissible. Suitable for applications where slight leakage is permissible. Suitable for applications where slight leakage is permissible. 5

8 HIGH TEMPERATURE USE SHEETS GASKETS High Temperature Use Sheet Gasket This is newly developed non-asbestos gasketing sheet for high temperature application. Main material of expanded graphite is mixed with aramid fibers, rubber and chemicals and then processed by calendering machine. NA Joint Sheets for High Temperature CLINSIL -Top Features : It can be used from 200 to 260 at 1MPa condition. This gasket can be used for 2MPa saturated steam. Seal performance and chemical resistance are quite similar to conventional asbestos joint sheets. "m" and "y" value are the same as asbestos joint sheets. Maximum outer diameter is 2520 mm and irregular shapes are available. Not like graphite sheet, surface is not scratched by normal handling process. Also good in flexibility. Thanks to the flexibility of expanded graphite, bolt re-tightening is possible. It will not cause corrosion pitching when it is used for stainless steel flange. 100% asbestos-free product. Applications : Gaskets for various types of piping flanges, valves, equipment etc. For cryogenic application like LNG, TOMBO No LN with special treatment is recommended to use. Service Range (For details, please refer to the diagram on page 10) Temperature : Pressure : Saturated steam, hot water See Page 10 Water, salt solutions, weak acid and weak alkali solutions.max.4.0mpa {30Of/F} Oil at 120 or lower. Max.4.0MPa {30Of/F} Air, exhaust gas, inert gas. Max.1.0MPa {10Of/F} TOMBO No TOMBO No.1120 Fluids not suitable for use with Clinsil-Top. Type Fluid name Oxidizing acids Nitric acid, concentrated sulphuric acid, hot sulphuric acid, mixed acids, chromic acid,etc. Oxidizing salts Nitrate, chlorate, hypochlorite, etc. Halogen compounds Bromine, fluorine, iodine, chlorine dioxide, etc. Combustion promoting gas Oxygen (pure oxygen) Applicable standards TA LUFT/VDI GUIDE LINE 2440 (HELIUM LEAKAGE) Availability WidthLength Thickness (1S) (3S) (6S) Recommended seating stress of Gasket : Please refer to page 8. Chemical resistance : 1100 Functional performance versus steam Typical test data in steal line <Condition> Temperature : 215 Pressure : 2MPa Fluid : Steam Gasket Thickness : 1.5mm Flange : JIS20K 25A RF Fastening Surface Pressure : 29.4MPa Venue : Boiler at Nichias' factory <Result> 776days No leakage Test under implementation as of May in Handling instructions Since gaseous fluids have a higher tendency to leak than water-based and oil-based fluids, please pay attention to and follow the handling instructions below. Gaskets should be ring-shaped (Type FR) in thickness of 1.5mm or less. Apply a small amount of the gasket paste (TOMBO No. 9105, 9106) thinly and evenly to the inner edge and both faces of gasket. When gasket is tightened in place, do not tighten more than the tolerable seating stress. Pay attention to the tendency that seating stress becomes greater than the tolerance in the case of flanges in small diameter. Pay attention to the tendency that seating stress at compression failure declines less than the values shown on page11 in the case where gasket is tightened under elevated temperatures (hot bolting).

9 JOINT SHEETS Compressed fiber joint sheet is a gasket made of a uniform mixture of fibrous material, filler, rubber and chemicals which is hot rolled by calendering to obtain smooth sheets. The sheets are processed to the required shapes and dimensions for applications in equipment, etc., in a wide range of industries. General-purpose NA Joint Sheets CLINSIL -Brown Features : Inorganic filler is added to inorganic fibers and aramid fibers; then oil-resistant synthetic rubber is added as binder to form brown NA (non-asbestos) joint sheets which contain absolutely no asbestos. This gasket can be used for stainless steel flange since leachable halogens are little. Large diameter gasket cut from the sheet of 3,810mm x3,810mm (9S size) max. in monolithic form is available. Applications : Gaskets for various types of piping flanges and valves, equipment, etc. Service Range (For details, please refer to the diagram on page 10.) Temperature : Pressure : Saturated steam, hot water See Page 10 Water, salt solutions, weak acid and weak alkali solutions. Max.3.0MPa Oil at 100 or lower. Max.3.0MPa Air, exhaust gas, inert gas. Max.1.0MPa Applicable standards API 6FA (FIRESAFE) BAM OXYGEN GAS SERVICE GERMANISCHER LLOYD GL TYPE TA LUFT/VDI GUIDE LINE 2440 (HELIUM LEAKAGE) ASTM F104 F B5E12M5 JIS F 0602 HJ JIS F 7102 HJ Availability Thickness WidthLength (1S) (3S) (6S) (9S) NA Joint Sheets for Stream CLINSIL -Super Features : The main components are inorganic fibers to which inorganic filler and aramid fibers are added; oilresistant synthetic rubber is then added as binder to form green NA (non-asbestos) joint sheets, which contain absolutely no asbestos. This gasket can be used for stainless steel flange since leachable halogens are little. Applications : Gaskets for various types of piping flanges and valves, equipment, etc. Service Range (For details, please refer to the diagram on page 10.) Temperature : Pressure : Saturated steam, hot water See Page 10 Water, salt solutions, weak acid and weak alkali solutions. Max.3.0MPa Oil at 100 or lower. Max.3.0MPa} Air, exhaust gas, inert gas. Max.1.0MPa Applicable standards JIS F 0602 HJ BAM OXYGEN GAS SERVICE ASTM F104 F B5E12M5 JIS F 7102 HJ Availability Thickness WidthLength (1S) (3S) TOMBO No TOMBO No.1995 Caution for Steam Sealing more than 100 Use ring shape (FR) and 1.5A gasket. Minimum recommended compressive stress for TOMBO No is 29.4NE TOMBO No is recommended when maximum operating pressure is 0.5MPa and over. Use Vortex gaskets, etc. in places where maintenance is difficult. Re-torque immediately before temperature rise. Do not re-torque after temperature rise. Avoid piping stress to installed gaskets. TOMBO No.1993 TOMBO No Caution for Steam Sealing more than 120 Use ring shape (FR) and 1.5A gasket. Minimum recommended compressive stress for TOMBO No is 29.4N/E. Use Vortex gaskets, etc. in places where maintenance is difficult. Re-torque immediately before temperature rise. Do not re-torque after temperature rise. Avoid piping stress to installed gaskets. Handling instructions in the case where gasket is for use in gas line. Do not use this gasket for applications where even a minimal amount of leakage is not allowable. 7JOINT SHEETS

10 Other Joint Sheets Appearance TOMBO No. Product name Construction and features Application Service temperature range Applicable standards JOINT SHEETS CLINSIL-UF 1991-NF CLINSIL-NF Recommended Seating Stress of Gasket Aramid fibers, inorganic fibers, inorganic filler and oil-resistant rubber are mixed uniformly and then compressed and calendered to form NA (nonasbestos) joint sheets with outstanding shear strength and easy cutting feature. NA (non-asbestos) joint sheet for refrigerator. Suitable to use with POE(ester oil) or combination of R134a / POE. Tensile strength and gas sealing performance is almost same as our TOMBO No.1901 and total oxidation from gasket is quite minimum. Availability TOMBO No.1938 TOMBO No.1991-NF Thickness Thickness WidthLength (1S) (1S) WidthLength (3S) Compressed Fiber Joint Sheet Standards and Physical Properties (Test data only) Tensile strength Compressibility Recovery Flexibility Oil resistance Fuel oil resistance Steam test Ignition loss Stress relaxation Density Test sample thickness: 1.5A (1.0A for TOMBO No.1991-NF) Thickness (mm) N/E By a round rod with a diameter of 12 times the thickness. IRM 903 oil 150 5h IRM 903 oil 40 48h ASTM Fuel B (JIS fuel oil B) R. T. 5h 5.0Mpa h h Test Item Gasket factor m(-) N/E % % Warp Weft Increase in thickness % Decrease in tensile strength % Increase in thickness % Increase in weight % Compressibility % Recovery % Increase in thickness % Increase in weight % Compressibility % Recovery % Decrease in tensile strength % % % N/ J Minimum designed seating stress y (N/mm 2 ) Class A 9.8min min No cracks 30 max 40 max 50 max Applicable standards JIS R Class B 15.7min min No cracks 30 max 40 max 50 max 28 max 40 max Minimum seating stress WaterOil type Fluids (N/mm 2 ) Gas type Fluids (N/mm 2 ) Union joints Fluid: water, hot water, gas Refrigerator compressors and related equipment Fluid: substitute freon, refrigerator oil JPI-7S min min No cracks No cracks 20 max 15 max 20 max 40 min 23 max 38 min 28 max 40 max TOMBO No No cracks No cracks TOMBO No No cracks No cracks Test data TOMBO No No cracks No cracks JIS F 0602 HJ ASTM F104 (F712100) JIS F 0602 HJ ASTM F104 (F M7) TOMBO No No cracks No cracks TOMBO No NF No cracks No cracks Reference Asbestos joint sheet (TOMBO No.1100) No cracks No cracks JOINT SHEETS

11 Service Range JOINT SHEETS Fluid pressure (MPa) TOMBO No.1120 CLINSIL -Top Water type fluids Oil type fluids Fluid pressure (MPa) Fluid pressure (MPa) Gas type fluids Note : Do not use for toxic gases or combustion promoting gas(oxygen). C : Use ring shape(fr), thickness less than 1.5mm, with gasket paste, with adequate fastening Fluid temperature() Fluid temperature() Fluid temperature() Please consult us for the service other than the above service range. TOMBO No.1995 CLINSIL -Brown Water type fluids Oil type fluids Gas type fluids Fluid pressure (MPa) Note:Recommended gasket life for steam pipe sealing at 100 or above is as follows: Fluid pressure (MPa) Note: Do not use for aromaticbased fluids. Fluid pressure (MPa) Note: Do not use for toxic gases or combustion promoting gas (oxygen) ~2 years Fluid temperature() Fluid temperature() Fluid temperature() For steam higher than 100, hot water, please refer to cautions in page 7. TOMBO No.1993 CLINSIL -Super Water type fluids Oil type fluids Gas type fluids Fluid pressure (MPa) Note: Recommended gasket life for steam sealing is as follows: A: 5 ~ 10 years B: 1 ~ 2 years 120 A B Fluid pressure (MPa) Note: Do not use for aromaticbased fluids. Fluid pressure (MPa) Note: Do not use for toxic gases or combustion promoting gas (oxygen) Fluid temperature() Fluid temperature() Fluid temperature() For steam higher than 120, hot water, please refer to cautions in page 7. 10

12 Cautions Flange Finish The recommended surface roughness of flange is as follows : For liquids 6.3 Ra For gas 3.2 Ra Seating Stress The seating stress should be one the maximum value, as shown below: a. Wm1 according to JIS B b. Wm2 according to JIS B c. Minimum seating stress required for sealing liquids. For water, oil : 14.7N/E For gas : 34.3N/E Preventive measures for permeation leakage of gaseous fluids The joint sheet has disadvantage that it has a high tendency to have permeation leakage in the case of gaseous fluids since it is not physically dense material due to the characteristics of its material component. Apply a small amount of gasket paste uniformly on the surface and inner diameter. Apply enough seating stress.(please refer above.) Gaskets should be ring-shaped (FR shape) with a thickness of 1.5A or less. When an air tight test is required, 2-3 hours after tightening. Non-asbestos joint sheet shall not be used for toxic gas or high vacuum sealing. Non-asbestos Joint Sheets for stainless steel flanges TOMBO No.1993, 1995, 1120 are recommended for this service since leachable halogens are little. Gasket paste (TOMBO No.9120) is not required generally. However, if paste is used, please consult us. Compression failure Fastening force If excessive tightening force is applied to nonasbestos joint sheets, compression failure may occur. When tightening joint sheets, refer to the following maximum tolerable seating stress. Maximum tolerable seating stress NA joint sheet Thickness Without paste TOMBO No. A N/E With paste N/E Value inside ( ) is for TOMBO No Due to low physical strength of NA joint sheets, special precautions should be made to avoid uneven tightening. Combined use of gasket paste Do not apply solvent-based liquid packing (which makes gaskets swell), silicon-based oil or grease (which makes gaskets slippery) on NA joint sheets as gasket paste, as they may cause compression failure at a pressure lower than the above values of seating stress. If using gasket paste, TOMBO No or 9106 is recommended. Please consult with us regarding other pastes. Installation Tighten bolts from side to side around the joint in a star like crossing pattern. All bolts should be tightened in four to five increments, according proper bolting patterns. Immediate tightening can cause leaks and compression damage Bolt tightening sequence Gasket Thickness We recommend the use of gasket thickness depending on the nominal diameter of the flange as follows. 150A (6B) or below: 1.5A 200A (8B) and above: 3.0A Caution We recommend a thickness of 1.5At regardless of the consideration above if TOMBO No.1995 is used for steam or hot water at the temperature of over 100. We recommend a thickness of 1.5At regardless of the consideration above if TOMBO No.1993 is used for steam or hot water at the temperature of over 120. Placing orders Sheets Please specify the thickness, width and length. Example: 1.5t or 1.5t1S. Cut gaskets In the case of flanges for JIS or JPI (ANSI) piping, etc., please specify pressure rating (class), nominal diameter, flange type (RF or FF) and gasket thickness. Example: JIS 10K50A, RF, 1.5t, JPI class 1502B, RF, 1.5t. Please provide a drawing for non-standard dimensions. Caution These joint sheet gaskets contain organic materials; therefore they are not recommended for combustion promoting application gas (oxygen gas). For further details, please refer to the separate handling instructions JOINT SHEETS 11

13 VORTEX GASKETS Vortex gaskets are semi-metallic gaskets. Owing to their special construction, Vortex gaskets can be used at high temperatures and high pressures like metal gaskets. Sealability is outstanding and a wide application range is possible for various types of piping and equipment. Construction Vortex gaskets are made of thin V-shaped metal hoops and non-metallic cushioning filler. These are wound into a spiral shape by welding at the beginning and end of the spiral winding. Vortex gaskets are available in four types: basic, with an inner ring, with an outer ring, and with both inner and outer rings. VORTEX GASKETS Types and TOMBO Numbers Shape Type 304 stainless steel 1804-GR 1804-NA Basic type Type 316 stainless steel 1806-GR 1806-NA Other 1808-GR 1808-NA Type 304 stainless steel 1804R-GR 1804R-NA With inner ring Type 316 stainless steel 1806R-GR 1806R-NA Other 1808R-GR 1808R-NA Type 304 stainless steel 1834-GR 1834-NA With outer ring Type 316 stainless steel 1836-GR 1836-NA Other 1838-GR 1838-NA With both inner and outer rings Hoop material Expanded graphite tape NA paper Type 304 stainless steel 1834R-GR 1834R-NA Type 316 stainless steel 1836R-GR 1836R-NA Other 1838R-GR 1838R-NA Filler material PTFE tape Expanded graphite tape + Mica paper 1804-GR series 1804-NA series 9090 series 1806-GS series 1806-GM series 1808-GH series GS 1806-GM GS 1808-GM 1808-GH IR 1806R-GS 1806R-GM R-GS 1808R-GM 1808R-GH OR 1836-GS 1836-GM 1838-GS 1838-GM 1838-GH IOR 1836R-GS 1836R-GM R-GS 1838R-GM 1838R-GH Notes: TOMBO Numbers shown in this table indicate normal shaped gaskets with representative fillers for piping. Special shapes, etc., will differ from these. Refer to page 28 for details. Applicable standards JIS F 0602 Shipbuilding Non asbestos gaskets to cargo piping system Application standard. HUC TOMBO No.1834-NA HUD TOMBO No.1834R-NA KUD TOMBO No.1834R-GR FUC TOMBO No.9090-IOR JIS F 7102 Shipbuilding Piping system in machinery space - Application for gaskets and packings. HUC TOMBO No.1834-NA HUD TOMBO No.1834R-NA KUD TOMBO No.1834R-GR JPI-7S-41 Spiral wound gaskets for petroleum industry. TOMBO No.1804 Series TOMBO No.1804-GR Series TOMBO No.9090 Series Applicable standards ASME B Metallic gaskets for pipe flange joint. Spiral wound and jacketed. API 601 (OLD VERSION) Metallic gaskets for raised face pipe flanges and flanged connections. (Double jacketed corrugated and spiral-wound) BS 3381 Metallic spiral-wound gaskets for use with flanges to BS 1560, Parts 1 and 2. ISO 7483 Dimensions of gaskets for use with flanges to ISO

14 Shape Basic type Vortex gaskets are made of thin metal hoops and non-metallic cushioning filler. These are wound into a spiral shape by welding at the beginning and end of the spiral windings. This type is used for Male & Female (M&F) type flanges and Tongue and Groove (T&G) type flanges, but is not recommended for the raised face of ordinary piping flanges. Filler Hoop VORTEX GASKETS Cross section of the basic type Vortex gasket With inner ring type A metallic inner ring is added to the basic type Vortex gasket. The inner ring functions as reinforcement that prevents deformation of the gasket during tightening. These are used for Male & Female (M&F) type flanges and valve bonnet gaskets. Filler Hoop Inner ring Cross section of the Vortex gasket with an inner ring With outer ring type A metallic outer ring is added to the basic type Vortex gasket. The outer ring functions to center the Vortex gasket when it is placed in flanges and also to prevent deformation of the gasket during tightening. This type is used for raised face (RF) piping flanges. With inner and outer ring type is recommended for the following cases: High-pressure such as class 900 or 63K and above. Large diameter such as 26 and above. GRASEAL and NAFLON filler. Outer ring Filler Hoop Cross section of the Vortex gasket with an outer ring With inner and outer ring type An inner ring is added to the type with outer ring. The inner ring protects spiral wound gaskets from buckling during tightening. Outer ring Filler Hoop Inner ring Cross section of the Vortex gasket with both inner and outer rings 13

15 Expanded Graphite Tape Filler Vortex Gaskets GRASEAL Vortex Gasket TOMBO No GR Series This Vortex gasket uses expanded graphite tape (GRASEAL tape) as the filler material which provides superb sealability even under severe conditions such as high temperatures, high pressures, cryogenic temperatures, heat cycles, temperature cycles and so on. VORTEX GASKETS Features 1. Sealability, especially gas sealing, is superior to that of NA Vortex gaskets. 2. Good sealability under high temperature and pressure since filler materials are less affected by high temperature. 3. Sealability remains outstanding even under severe conditions such as pressure fluctuations and heat cycles. 4. As filler materials is also chemical resistant, gasket with appropriately selected hoop can be used for corrosive fluids in situations where asbestos cannot be used. 5. Outstanding Sealability even at cryogenic temperatures. Applications Suitable for use in piping flanges, pressure vessels, heat exchangers, valve bonnets, etc., in various industries, especially as gasket for high-temperature, high-pressure steam, and for LNG, etc. at cryogenic temperatures. Fluids not suitable for use with GRASEAL Classification Oxidizing acid Oxidized salt Halogen compounds Combustion promoting gas Name of liquid Nitric acid, Concentrated sulfuric acid, Hot sulfuric acid, Chromic acid, Mixed acids, etc. Nitrates, Chlorates, Hypochlorites, etc. Bromine, Fluoride, Iodine, Chlorine dioxide, etc. Oxygen (Pure oxygen) TOMBO No. 1834R-GR Service Range Fluid Maximum service temperature Maximum service pressure Water type fluids 450(650) Class 2500 Oil type fluids 450(800) Class 1500 Gas type fluids 450(800) Class 1500 Cryogenic 240 temperature fluids (Minimum service temperature) 20MPa * The values in brackets ( ) are maximum service temperatures under a non-oxidizing atmosphere. When using with RF flanges in open air, the maximum service temperature is 450. * Max. service temperature differs depending on the materials of the hoop and the inner and outer rings. Refer to page 27. Do not apply gasket paste. NA Paper Filler Vortex Gaskets NA Vortex Gasket TOMBO No NA Series Instead of the conventional asbestos filler, this type of Vortex gasket uses inorganic fibers and aramid fibers as a non-asbestos paper filler. Features 1. Asbestos fibers are not used. 2. The service range (heat resistance, pressure resistance) is different from that of the asbestos Vortex gaskets, but the sealing performance is almost the same. Applications Suitable for use in piping flanges, pressure vessels, heat exchangers, valve bonnets, etc. Please pay attention when flanges are released after temporary setting of machinery or hydraulic test. Filler material may stick to flanges. Please consult us if gaskets are used like this. TOMBO No NA Service Range Fluid Maximum service temperature Maximum service pressure Water type fluids 350 Class 1500 Oil type fluids 350 Class 600 Gas type fluids 350 Class

16 PTFE Tape Filler Vortex Gaskets NAFLON Vortex Gasket TOMBO No Series This Vortex gasket uses unsintered PTFE tape as the filler material. The PTFE filler provides superior chemical resistance and sealability. By combining with corrosion resistant metals, it can be applied for corrosive fluids, pure oxygen gas and vacuum lines. Features 1. Sealability is superior to that of all other Vortex gaskets. It can also be used for vacuum lines. 2. The highest corrosion resistance among the all Vortex gaskets. It can be used for almost all fluids by selecting appropriate hoop materials Applications Suitable for use in piping flanges, pressure vessels, heat exchangers, valve bonnets, etc. especially for corrosive fluids and oxygen for which other Vortex gaskets cannot be used, places where a high degree of air tightness is required, as well as vacuum lines. The OX type, which has no oil in the PTFE, is available for use with pure oxygen. TOMBO No IOR Service Range Fluid Maximum service temperature Maximum service pressure Water type fluids 300 Class 600 Oil type fluids 300 Class 600 Gas type fluids 300 Class 600 VORTEX GASKETS 15

17 VORTEX GASKETS Composite Filler Vortex Gaskets for High-temperature Applications Vortex Gasket-GS, -GM, -GH TOMBO No GS,-GM, -GH Series Non-asbestos Vortex gasket for high temperature service for which normal GRASEAL Vortex cannot be used. Combination of mica layers and GRASEAL filler with anti-oxidant prevents oxidation of GRASEAL at high temperature. We offer a line up of three types GS, GM, and GH, depending on service conditions. GS Series Suitable for non-oxidizing fluids of 450 and above. (Ordinary GRASEAL Vortex gaskets are recommended for temperatures below 450) When fluids contain oxygen, do not use at temperature of 450 or higher. GM Series Suitable for high-temperature conditions over 450, and usage conditions where there is decoking. (For temperatures below 450, ordinary GRASEAL Vortex gasket is recommended.) When the internal fluid is air, do not use at temperatures of 450 or higher. GH Series Suitable for high-temperature conditions over 650, and usage conditions where there is decoking. (For temperatures below 650, Vortex Gaskets-GM is recommended. For temperatures below 450, ordinary GRASEAL Vortex gasket is recommended.) When the internal fluid is air, do not use at temperatures of 450 or higher. Service Range Mica GRASEAL containing oxidation inhibitor Mica GRASEAL containing oxidation inhibitor Mica GRASEAL containing oxidation inhibitor Fluid TOMBO No.1806-GS, -GM Series Maximum service temperature () Maximum service pressure TOMBO No.1808-GH Series Maximum service temperature () Maximum service pressure Water type fluids 650 Class Class 1500 Oil type fluids 650 Class Class 1500 Gas type fluids 650 Class Class 600 Notes: Maximum service temperatures differ depending on the materials of the hoop and the inner and outer rings. Refer to page

18 Expanded Graphite Filler Vortex Gaskets for Low-temperature, Low Seating Stress Service GRASEAL Vortex Gasket L TOMBO No Series Protruding graphite tape (GRASEAL) is used on the gasket surface to make this gasket suitable for cryogenic applications. Features 1. Outstanding sealability for cryogenic fluids such as LNG, etc. 2. Superb sealability even in low seating stress. Applications Suitable for services such as: * Cryogenic lines for LNG, LN2, LO2, LHe, etc. * Locations where adequate seating stress for ordinary GRASEAL Vortex gasket is not attainable. Service Range Fluid Maximum service temperature Maximum service pressure Water type fluids 450 Class 600 Oil type fluids 450 Class 600 Gas type fluids 450 Class 600 Cryogenic MPa temperature fluids (Min. service temperature) TOMBO No. 1839R GRASEAL VORTEX GASKETS Expanded Graphite Filler Vortex Gaskets for use with Aluminum Flanges GRASEAL Vortex Gasket for Aluminum Flanges TOMBO No AL Series This GRASEAL Vortex gasket for aluminum flanges uses a combination of aluminum and type 304 stainless steel as the hoop material. Features 1. Suitable for aluminum flanges. 2. Outstanding sealability for cryogenic fluids such as LNG, etc. 3. Superb sealability even in low seating stress service. Applications Suitable for cryogenic temperature lines such as LNG, LN2, LH2, LHe and aluminum flanges. Service Range Fluid Maximum service temperature Maximum service pressure Water type fluids 300 Class 600 Oil type fluids 300 Class 600 Gas type fluids 300 Class 600 Cryogenic MPa temperature fluids (Min. service temperature) TOMBO No. 1839RAL Stainless steel hoop GRASEAL Aluminum hoop 17

19 JOINT SHEETS VORTEX GASKETS Irregular-shape Spiral Wound Gaskets Irregular-shape Vortex Gasket This type of Vortex gasket includes various shapes such as the normal ovals, track shapes, diamonds, squares, and so on. (Shapes with long straight lines, small curvature radius, etc., are difficult to manufacture; therefore, please consult with us before ordering.) Applications Mainly used for boiler manholes, hand holes and valve bonnets, etc. How to indicate dimensions Track type Oval type Diamond type Square type Notes: (1) When ordering gaskets, please indicate the dimensions A, B, C, R1, R2 and R3 shown in the diagram. R3 is not necessary with diamond shapes where R3 is a straight line. (2) Dimension A for oval and track shapes: Shall be 40mm or over. Dimension A for diamond and square shapes: Shall be 60mm or over. (3) Ratio A/B shall be 2/3 or over. Vortex Gaskets for Heat Exchangers Heat Exchanger Vortex This type of Vortex gasket has stainless steel tube or metal jacketed ribs welded inside the Vortex. NA Vortex, GRASEAL Vortex and NAFLON Vortex are available. Features 1. Ribs can be manufactured in any shape. 2. Ribs can be manufactured with either stainless steel tube or metal jackets. Sealability is the same. Applications Used for general heat exchangers. Gasket with Pass Ribs Rib types (for a gasket thickness of 4.5mm) Unit: A TOMBO No. 1804EX Rib type Stainless steel tube Metal jacket Rib material and dimensions Type 321 stainless steel 4.8 (tube diameter)0.5 wall thickness TOMBO No The metal is the same as that of the Vortex hoop. 10 (width) 4.7 (thickness) 18

20 Special Construction Spiral Wound Gaskets Special Construction Vortex Inner ring rod type This type of Vortex gasket has a metal rod instead of a regular type inner ring. Gasket Applications Recommended where the regular type inner ring cannot be installed. Rod dimensions and materials Gasket thickness Rod diameter Available materials Unit: A Type 304,316 stainless steel Notes: Basically, only rod type Vortex gaskets with a thickness of 4.5mm or more can be manufactured. VORTEX GASKETS Wound-metal hoop type This type of Vortex gasket has a 3.2A thick winding metal hoop instead of the outer metal ring. Applications Recommended where outer ring is not wide enough for M&F or T&G flanges. Do not use for raised face (RF) flanges as the mechanical strength of wound metal hoop is less than normal outer metal ring. Hoop materials and dimensions Gasket thickness Wound part Thickness Maximum width Unit: A Available materials Type 304 stainless steel, Type 316 stainless steel, other Notes: In principle,only 4.5A thickness hoop material type Vortex gaskets can be manufactured. 19

21 Design standard Gasket, Inner and Outer ring thickness Gasket thickness (standard) Unit: A Inner and outer ring thickness Carbon steel Other than carbon steel Available inner diameters Gasket thickness Available inner diameters Minimum Maximum (3000) (3000) Unit: A VORTEX GASKETS Notes: Gaskets with a thickness of 3.2A are mainly used for small-diameter valve bonnets and are not used for pipe flanges. Available widths Range for gasket inner diameter Inner diameter of inner ring Inner diameter of outer ring Gasket thickness 3.2 Please consult with us in case of dimensions over values in brackets ( ). Available gasket widths Gasket thickness 4.5 Gasket thickness 6.4 Minimum width of inner ring Minimum width of outer ring [25] [25] [25] (12) 27[25] (12) (12) 25[22] (12) (12) 25[22] (12) (12) 25[22] (12) (12) 25[22] (12) (12) 22[20] (12) (12) 20 (12) (12) 20 (12) (12) 18 (12) (12) (12) Values in brackets ( ) are for reference. Dimensions shown in brackets [ ] are for graphite filler and for a combination of a titanium hoop and PTFE filler. Special configuration Vortex gaskets such as TOMBO No.1809 and 1809AL are available only with a thickness of 4.5A. Maximum gasket diameter is 1200 mm for TOMBO No and 600 mm for TOMBO No AL. Unit: A 20

22 Other Joint Sheets Recommended gasket widths (for a gasket thickness of 4.5mm) Recommended width Gasket width (A) Recommended minimum widths for NA Vortex gaskets. Recommended minimum widths for GRASEAL and NAFLON Vortex gaskets. VORTEX GASKETS Gasket inner diameter (A) Flange types and suitable gasket types Full Face (FF) Raised Face (RF) Male & Female (M&F) Tongue & Groove ( T&G) With inner and outer ring (1) With inner and outer ring (1) With inner ring (1) Basic type Notes:(1) The type without an inner ring can be used if the following conditions are fully satisfied. Filler material : NA paper. Pressure rating : Class 600 or below, or 40K or below. Size : Nominal diameter 24B or below, or 600A or below. 21

23 VORTEX GASKETS Notes for Designing Applicable flanges (1) Since Vortex gaskets require a comparatively high tightening stress, do not use for lowpressure flanges (JIS 2K, 5K, vacuum lines, etc.). (2) Only TOMBO No AL Series Vortex gaskets can be used for aluminum flanges. Necessity of inner ring The function of the inner ring is to prevent the gasket from buckling or damage, to withstand high tightening stress. When installing a gasket on a flange with no means of restraining support toward the inside, inner ring types should always be used in the following cases: (1) With a low friction filler such as GRASEAL and NAFLON. (2) When the pressure rating of the flange is class900 (63k) or above. (3) When the nominal diameter of the flange is 650A (26B) or above. Clearance for grooved flanges (1) Tongue & Groove (T&G) and Male & Female (M&F) flange Unit: A Gasket diameter Appropriate clearance (a) (b) 250 or below or above (2) Flat to Groove flange Clearance (b) differs depending on the seating stress of the gasket. Please consult us for designing the clearance. Gasket thickness and suitable groove depth (1) Tongue & Groove (T&G) and Male & Female (M&F) flange Unit: A Gasket thickness Suitable groove depth (f) or more or more or more (2) Flat to Groove flange Gasket thickness Suitable groove depth (f) Please consult us for applications of 6.4t thickness Vortex gaskets to Flat to Groove flange. Flange surface finish Fluid type Recommended surface finish Liquid type 6.3 Ra Gas type 3.2 Ra Unit: A Buckling Buckling of Vortex gasket f a b Application for Tongue & Groove (T&G) flange f a b Application for Flat to Groove flange 22

24 Gasket seating stress (1) For general liquids : The calculation results Wm1 and Wm2, stipulated in JIS B 8265, etc., shall be calculated using m and y. The largest stress obtained from the calculation shall be the required seating stress. (2) For fluids that tend to leak: For gas type fluids, leakage may occur if only seating stress calculated by JIS B8265,etc. is applied. In addition to Wm1 and Wm2, the seating stress (Wm3) shall also be calculated in accordance with the following 3 per unit of gasket contact surface. The largest stress from the calculation shall be used as the required seating stress. Bolt materials Since Vortex gasket require comparatively high tightening stress, high tension bolt such as SNB 7 or over is recommended for bolt specification. VORTEX GASKETS Seating stress of gasket Gasket type TOMBO No.1804-GR Series TOMBO No.1804-NA Series TOMBO No.9090 Series TOMBO No GS -GM -GH TOMBO No.1809 Series Gasket factor 3.00 notes:(1),(2) Specified by JIS B 2205 (1991), JIS B (1995) and JPI-7S (3) Specified by test results from NICHIAS Corporation Cautions Storage 1. Store gaskets indoors in a cool, dark place in the original wrapping. 2. Do not stand gaskets upright or hang them. 3. Do not bend, twist, push or press gaskets. Installation 1. Before installing a gasket, first clean the surface of the flange and check the surface is free of foreign matters, scratches, etc. 2. Do not handle gaskets roughly. Since large diameter gasket is easily damaged (dropping off of windings), it should be handled very carefully by several persons. 3. Place gaskets carefully in correct position. 4. In principle, there is no need to apply gasket paste. But, if considered necessary NAFLON paste (TOMBO No. 9400) is recommended for temperature conditions of 300 or lower, 5. Do not re-use gaskets. Minimum design seating stress Minimum seating stress (for gas sealing) (3) 3 N/E N/E (Class 150) (Class 300) 49.0 (Class 600) Tightening To obtain uniform seating stress, apply the tightening load (torque) in 4-5 stages, proceeding diagonally as shown in the diagram below. Gradually increase the strength of the tightening load until the prescribed seating stress is obtained. After that further tighten by proceeding clockwise 1-2 turns. Basic-type Vortex Basic-type Vortex gaskets (including irregular-type gaskets) should be carefully handled as they deform easily with even with slight external force. Even if gaskets are somewhat deformed, they may still be fitted into the groove on the flange and used, depending on the condition of the gasket. In such cases, please consult with us Bolt tightening sequence 23

25 Compression recovery curve TOMBO No.1834R-GR(4.5t)compression recovery 137 VORTEX GASKETS Compression load (N/E) Class 600 x 8B Class 300 x 8B Gasket thickness (A) TOMBO No.1834-NA (4.5t) compression recovery Gasket ; TOMBO No.1834-NA Size 3B ; ø101 x ø117 x ø148 x 4.5t 8B ; ø236 x ø260 x ø307 x 4.5t 79 Class 300 x 3B Compression load (N/E) Class 300 x 8B Gasket thickness (A) 24

26 TOMBO No.1839R (4.5t) compression recovery 137 Gasket ; TOMBO No.1839R Size 8B ;ø220 x ø236 x ø260 x ø307 x 4.5t (Class 300) ø209 x ø230 x ø260 x ø320 x 4.5t (Class 600) Compression load (N/E) Class 300 x 8B Class 600 x 8B VORTEX GASKETS Gasket thickness (A) TOMBO No.1839R-AL(4.5t)compression recovery Compression load (N/E) Size 8B ;ø220 x ø236 x ø260 x ø307(class 300) Size 8B ;ø209 x ø230 x ø260 x ø320(class 600) Class 300 x 8B Class 600 x 8B Gasket thickness (A) 25

27 Selection Guide Water type fluids Design Points Oil type fluids VORTEX GASKETS Pressure (MPa) Pressure (MPa) Temperature () Temperature () Selection Guide Gas type fluids Design Points Corrosive fluids Pressure (MPa) Pressure (MPa) Temperature () Temperature () 26

28 Design Points Selection chart 1. The following codes indicate the gasket types: Code Product TOMBO No. GR GRASEAL Vortex 1804-GR Series NA NA Vortex 1804-NA Series PTFE NAFLON Vortex 9090 Series GS GRASEAL Vortex-GS 1806-GS Series GM GRASEAL Vortex-GM 1806-GM Series GH GRASEAL Vortex-GH 1808-GH Series 2. When several recommended gaskets are indicated by the line connecting temperature and pressure, the priority is indicated by numerical order. 3. This table is just a general selection guide. Service temperature for hoop material Type Material code Old material code Recommended service temperature() 304 Stainless Steel E and below 304L Stainless Steel L 304L 500 and below 316 Stainless Steel G and below 316L Stainless Steel H 316L 600 and below 321 Stainless Steel J and below 347 Stainless Steel K and below Inconel 600 Y IN 800 and below Monel M M 750 and below Titanium T TI 500 and below Applicable fluids Pay special attention when selecting Vortex gaskets for the following fluids. 1. Combustion promoting gas (oxygen): Use only NAFLON Vortex OX type (TOMBO No OX etc.) which contains no oil in its filler material. Other types of Vortex gasket should not be used since their fillers contain combustible materials. 2. Strong acid fluids: Do not use GRASEAL Vortex gaskets for strong oxidizing acids such as nitric acid and nitrates. For details, refer to fluids that cannot be used with GRASEAL on page High temperature fluids: Select materials for the hoop and inner ring that can sufficiently withstand usage conditions. Do not use Vortex Gasket-GS at temperatures of 450 or above if fluids contain oxygen. If the oxidative power of the fluids is weak, Vortex Gasket-GM, -GH can be used. 4. Corrosive fluids: Select hoop and inner ring materials that are fully capable of withstanding the service conditions. 5. Acidic fluids: Do not use NA Vortex gaskets. VORTEX GASKETS Service temperature for inner and outer rings Type Material code (Remarks) Old material code Recommended service temperature() Carbon steel S SS Stainless Steel E and below 316 Stainless Steel G and below The temperatures are of inner and outer rings, not of fluids. 27

29 VORTEX GASKETS For ordering Please specify the following items when ordering Vortex gaskets: 1. Type (basic, with inner ring, with outer ring, with inner and outer rings) 2. Special construction (with rib, metal rod, winding metal hoop, etc.) 3. Materials (filler, hoop, inner ring, outer ring) 4. Dimensions (1) Standard size: Applicable standards such as JIS, JPI, ASME, etc., nominal pressure/ class, nominal diameter. (2) Non-standard size: service pressure, dimensions (inner diameter of inner ring, gasket inner diameter, gasket outer diameter, outer diameter of outer ring, thickness). 5. Special treatment (OX), Special specifications Indications [GRASEAL Vortex, NA Vortex, Others] Outer ring Yes No Special specifications When special specification is agreed with end user, this code will be added Hoop material (1) 304 Stainless steel Stainless steel 6 Others 8 Even if hoop material is either 304 or 316 stainless steel, code will be "8" when inner or outer ring material is "Others". Yes No Yes No Rib Inner ring R None EX None Outer ring/material Yes No Yes No See table below O Inner ring/material See table below O Hoop material (See table below) Filler material Graseal NA Paper GS (2) GM (2) GH (2) GR NA GS GM GH See page 16 Hoop, inner ring, outer ring material codes Type Material code Old material code Carbon steel S SS 304 Stainless Steel E L Stainless Steel L 304L 309S+Cb Stainless Steel W 309S+CB 316 Stainless Steel G 316 Type Material code Old material code 316L Stainless Steel H 316L 316ELC Stainless Steel X 316ELC 321 Stainless Steel J Stainless Steel K Stainless Steel R 410 Type Material code Old material code 430 Stainless steel U 430 Inconel 600 Y IN Monel M M Titanium T TI Others Z - In the case of "others" please indicate the specific material If any of the hoops, inner rings and outer rings contain any "other" material, the material codes of hoops, inner rings and outer rings must all be prefixed by "Z" and the specific material name should be indicated. Some of the hoop and ring materials shown in this table may not be available as ready stock material. For details, please consult us. 28

30 [GRASEAL Vortex L] Outer ring Yes 3 No 0 Inner ring Yes R No None 189 Special specifications Only required when so decided through agreement with the user. Outer ring/material Yes No See table on previous page O VORTEX GASKETS Application (flange material) Stainless steel None Aluminum AL Inner ring/material Yes No See table on previous page O Hoop material (See table on previous page) Inner ring and Outer ring Basic type With inner ring With outer ring With inner and outer rings Ribs Yes No EX None [NAFLON Vortex ] 9090 None IR OR IOR Special specifications Only required when so decided through agreement with the user. Special processing Standard product For oxygen Outer ring/material. Yes No Yes No See table on previous page 0 Inner ring/material None OX See table on previous page 0 Hoop material (See table on previous page) Examples of numbering TOMBO No. Type Materials Filler Hoop Inner ring Outer ring Old TOMBO No GR-GOO Basic Expanded graphite 316 Stainless Steel None None 1806-GR 1834-NA-EOS With outer ring NA paper 304 Stainless Steel None Carbon steel 1834-NA-SS 9090-IOR-TTG With inner and outer rings PTFE Titanium Titanium 316 Stainless Steel 9090-IOR-TI-TI

31 METAL GASKETS Metal gaskets are suitable for high pressure and high temperature duties instead of soft gasket. Metal gaskets can be produced in any suitable materials such as soft iron, stainless steel, brass, aluminum, titanium, special alloy, etc. Plain and serrated metal gaskets can be used with flat surface flanges, but other metal gaskets should be installed to specified flanges. Applications : Pipe flanges, valves, pressure vessels, heat exchangers, etc. METAL GASKETS Metal Solid Gaskets Plain Metal Gasket TOMBO No.1850P Features : Flat metal gaskets are either cut or machined from flat plates, round rods, forging metals, etc. A higher seating stress is required than with other types of gaskets. In order to improve sealability, a V-groove or nubbin may be machined on the flange. Applications : Pipe flanges, valves, pressure vessels, heat exchangers, etc. Cross section Metal Solid Gaskets Serrated Metal Gasket TOMBO No.1890 Features : Serrated Metal Gaskets with V-grooves around flat type metal gaskets to form a serrated cross section as shown in the diagram. Inner and/or outer ring types also available. This gasket is used for high-pressure pipe flanges, vessels and valves. Expanded graphite sheets can also be adhered to both surfaces upon request. For Grooved Metal Gasket with covering layers, please refer to technical data available separately. TOMBO No.1850P-E TOMBO No.1890-E Cross section Applications : Pipe flanges, valves, pressure vessels, heat exchangers, etc. 30

32 Metal Solid Gaskets Octagonal Ring Joint Gasket TOMBO No.1850C Features : These gaskets are processed to solid ring joints with an octagonal cross section. Used for high-pressure pipe flanges, vessels and valves. Standard dimensions : Please refer to the table of dimensions at the end. Applicable standards JPI-7S-23 ASME B16.20 API Spec 6A Applications : Pipe flanges, valves, pressure vessels, heat exchangers, etc. Cross section TOMBO No.1850C-L METAL GASKETS Metal Solid Gaskets Oval Ring Joint Gasket TOMBO No.1850V Features : These gaskets are processed to solid ring joints with an oval cross section. Like the octagonal type, this type is used for high-pressure pipe flanges, vessels and valves. The re-use of ring joint gasket is not recommended. Standard dimensions : Please refer to the table of dimensions at the end. Applicable standards JPI-7S-23 ASME B16.20 Applications : Pipe flanges, valves, pressure vessels, heat exchangers, etc. Cross section TOMBO No.1850V-G 31

33 Other Metal Solid Gaskets TOMBO No. Product name Cross section Features 1850-RX RX ring gasket This ring joint gasket is suited for flanges in accordance with API spec 6A, model 6B BX BX ring gasket This ring joint gasket is suited only for flanges in accordance with API spec 6A, model 6BX. METAL GASKETS 1850-D 1850-L Delta gasket Lens type gasket This delta gasket is designed to be self energized by the internal system pressure. The sealing action is based on line contact sealing. Dimensions in accordance with DIN O Metal O-ring A solid metal o-ring Doble corn gasket A self sealing type metal gasket with a cross section as shown Bridgeman gasket This bridgeman gasket is a pressure-activated gasket. Use for seal ring. Metal material types, material codes, hardness and maximum service temperature Maximum service Gasket materials (1) Main composition Material Old material Maximum hardness (3) (2) temperature code code Remarks HB HV () Soft iron - D D C0.05% Carbon steel - S (4) SS Cr - 0.5Mo steel 5Cr-0.5Mo F F ASTM A182 F5 13Cr steel 13Cr R Type 304 stainless steel 18Cr-8Ni E Type 304L stainless steel 18Cr-8Ni, LC L 304L Type 316 stainless steel 16Cr-12Ni-2Mo G Type 316L stainless steel 16Cr-12Ni-2Mo, LC H 316L Type 321 stainless steel 18Cr-10Ni-Ti J Type 347 stainless steel 18Cr-10Ni-Nb K Aluminum - A Al Copper - C Cu Monel - M M Nickel - N Ni Titanium - T Ti Notes: (1) Materials should be selected with regard to operating temperature and chemical compatibility. Other metal materials are available upon request. (2) The alloy ingredients, etc., are indicated. (3) Hardness of materials to be used for TOMBO No P and 1890 may differ from this table. For details, please consult us. (4) In the case of rolled steel plain metal gaskets, SS is employed. 32

34 Indications 180 Shape Serrated type Other 9 5 Material code Shape Octagonal type Oval type RX type BX type Delta type Lens type Plain type Serrated type Other C V RX BX D L P None None METAL GASKETS Blinds and Spacers, and Spectacle Blinds These blinds and spacers are used to shut off piping and to cut off pressure during sealing tests and pressure tests. Solid spectacle blinds and built-in ring joint gaskets are also available. Please indicate the material, dimensions and so on. Types and shapes Type Blinds Spacers Spectacle blinds Top view (RF Type) Side view (RF Type) Side view (RTJ Type) 33

35 METAL GASKETS Hollow Metal Rings Metal O-Seal TOMBO No Stainless steel or Inconel tubes are formed into an O-ring shape, the ends are welded together, and then surfaces are finished ultra-smooth. PTFE coating or silver plating is used on the surfaces for sealing gases, vacuum and highly volatile liquids. Highly reliable sealing performance is provided over a wide range from high temperatures to cryogenic temperatures, and from high pressures to vacuum. This gasket features a compact design that requires a comparatively low seating stress and requires little space. Applications Valve bonnets, high-pressure vessel flanges, equipment joints, pipe flanges, plastic processing machinery, rubber extruders, hydraulic equipment, pneumatic equipment, vacuum vessels, nuclear power containers, aircraft engines, rocket engines and automobile engines. Type TOMBO S No. Service range High-pressure water High pressure gas Vacuum Product name Shape Features Up to 400MPa Up to 300MPa Up to 10-4 Pa 9200P Standard type Metal O-Seal A standard type Metal O-Seal can be applied from vacuum to about7.0mpa. 9200V Vent hole type Metal O-Seal Two or more holes are provided on the inside (for internal pressure) or outside (for external pressure) of the ring so that the fluid will enter the ring and increase self-sealing performance. Suitable for high-pressure sealing for 7.0MPa and over. Materials and service temperature Tube material Surface treatment Material Code Old code Service temperature range Type 321 stainless steel J Inconel 600 Y In PTFE coating TF TFE Silver plating AG Ag Notes: (1) The maximum service temperature is 250 with PTFE coating. (2) The service temperature range of silver plating is the same as type without silver plating. Indications Shape Standard type Vent hole type 9200 P V Surface treatment material None Silver plating NAFLON coating None AG TF Reference PTFE coating or silver plating is applied for gas sealing, vacuums and highly volatile liquids. Surface treatment thickness is 0.03A0.05A. Tube material Type 321 stainless steel Inconel 600 J Y 34

36 Standard dimensions Tube cross section diameter Wall thickness (3) Outside diameter (A) Compression load (4) (A) (A) Recommended range Available dimensions N/A * 6 (5) 25 6 (5) * * (6) (6) * (6) (7) (6) * (6) (6) * (6) (6)(8) 177 Notes: (3) Standard wall thickness is indicated with asterisks *. Apply the standard wall thickness for gases. (4) Indicates the load required to obtain proper seating stress. To obtain the actual seating stress, add the end force to be calculated to the above. (5) The minimum outside diameter for the vent hole type is 10A. (6) The maximum outside diameter for PTFE coating is 1300A; for silver plating, the maximum outside diameter is 1100A. (7) A tube diameter of 4.8A with a wall thickness of 0.50A is only available with type 321 stainless steel. (8) Please consult with us if gasket diameter is larger than 1500A. METAL GASKETS Standard groove dimensions Tube cross section diameter Groove outside diameter Groove inside diameter Groove width (W) (10) Groove corner(r) Groove depth(h) (O.D.) for internal pressure sealing (I.D.) for external pressure sealing (10) Recommended Minimum Maximum 0.8 A (A-1.6) A (A-3.2) A (A-4.8) A (A-6.4) A (A-9.6) A (A-12.8) Notes: ( 9) The groove surface finish is 0.8a (3.2S) for gas and vacuum sealing, and 1.6a (6.3S) for all other cases. (10) The groove dimensions shall be revised as follows when PTFE coating or silver plating are applied: Internal pressure sealing: 0.1A shall be added to the groove outside diameter (O.D.), groove width (W) and groove depth (H). External pressure sealing: 0.1A shall be subtracted from the groove inside diameter (I.D.), and 0.1A shall be added to the groove width (W) and groove depth (H). (11) A indicates the gasket outside diameter. Unit: A Internal pressure sealing type External pressure sealing type 35

37 Corrugated Metal Gaskets Bonded with Expanded Graphite CMGC Gasket TOMBO No.1880-GR Expanded graphite sheet (GRASEAL sheet) is adhered on both sides of concentric corrugated steel plate (Type 316L stainless steel). Features Excellent sealing performance that remains nearly the same under both low and high temperatures (up to 400) Can be used for almost all fluids, with the exception of strong oxidizing acid. This type of gasket is used widely by major foreignl oil companies. Applications Gasket for piping flange used with fluids such as petroleum, etc. Alternative to conventional asbestos joint sheets METAL JACKETED GASKETS Standard dimensions ASME (JPI) specifications Class 150 1/2B to 24B Please consult with us if the required sizes are outside of the above range. Nominal thickness : 1.6mm Service range Service temperature : 240 to 400 Maximum service pressure : 5.2MPa Recommended parameters for fastening Gasket factor "m" : 2.0 (-) Minimum design seating stress "y" : 26.0 (N/mm 2 ) Minimum seating stress for gas sealing3(gas) : *39.2 (N/mm 2 ) Specified by test results from NICHIAS Corporation Expanded graphite sheet Type SUS316 stainless steel plate Structure Sheets of expanded graphite are pressure-bonded onto both sides of a corrugated Type SUS316L stainless steel. Fluids not suitable for use with GRASEAL Classification Name of liquid Oxidizing acid Nitric acid, Concentrated sulfuric acid, Hot sulfuric acid, Chromic acid, Mixed acids, etc. Oxidized salt Nitrates, Chlorates, Hypochlorites, etc. Halogen compounds Bromine, Fluoride, Iodine, Chlorine dioxide, etc. Combustion promoting gas Oxygen (Pure oxygen) Sectional pattern diagram 36

38 METAL JACKETED GASKETS A highly heat resistant core is completely covered with a thin metal jacket. Double jacket type as per diagram below is standard, but other jacketing methods are also available. These gaskets are used for heat exchangers, pressure vessels, tanks, equipment, valves, high-temperature joint flanges, and so on. Types TOMBO No. Product name Cross section (1) Core material Standard thickness A Maximum service temperature (2) Maximum service pressure MPa 1841 NA Metal Jacketed Gasket Non-asbestos mill board Fi 1861 NA Metal Jacketed Gasket for High-temperature applications NA Corrugated Metal Jacketed Gasket Ceramic fiber felt Non-asbestos mill board METAL JACKETED GASKETS 1861-Fi NA Corrugated Metal Jacketed Gasket for High-temperature applications Ceramic fiber felt Notes: (1) Other types of gaskets with different cross section are also available upon request. (2) Indicates the heat resistance of the core. The values may become lower, depending on the jacket metal material. Cautions (1) The use of expanded graphite tape (TOMBO No or TOMBO No. 1221) on the sealing surface is recommended for more reliable sealing performance at temperatures of 400 and below. Hightemperature gasket paste (Never Seize nickel special grade) is recommended at temperatures higher than 400. (2) Metal Jacket Gaskets are not recommended for standard pipe flanges because it is difficult to obtain enough seating stress. However, if used even so, gaskets with hangers are recommended for centering. Metal types and available dimensions Shape Metal type (3) Flat 4 Corrugated 6 Material code 181 Surface material None None Graseal GR Old Maximum service temperature Maximum dimensions (4) material code A Carbon steel S SS Type 304 stainless steel E Type 316 stainless steel G Type 310S stainless steel V 310S Aluminum A Al Copper C Cu Monel M M Notes: (3) Other metal materials are also available upon request. (4) Indicates the maximum diameter that can be fabricated in one piece without welding. For larger sizes, welded types are also available. Applicable standards ASME B16.20 Jacketed Gaskets Indications Jacket metal material code Core material NA mill board None Ceramic fiber felt Fi 37

39 Metal Jacketed Gaskets with GRASEAL Expanded graphite tape is adhered to the surface of gaskets. When ordering, please add the code of "GR" to the end of products number as an indication of surface material. Tape METAL JACKETED GASKETS Heat Exchanger Gasket We manufacture gaskets for heat exchangers in various shapes. Please specify gasket shapes and dimensions based on the drawings and codes shown on the next page. The folded face of the gasket should touch the bottom of the groove on the flange. If the gasket is installed upside-down, the gasket may not fit with the partition or the sealing performance of the gasket may decrease. Standards for designing dimensions For flat gaskets (TOMBO No. 1841, etc.) 1. The rib width (W) must be 7A or over. 2. The corner radius (R) must be 8A or over. For corrugated type gaskets (TOMBO No. 1861, etc.) 1. The gasket width (N) must be 15A or over. 2. The rib width (W) must be 7A or over. (Ribs cannot be provided with corrugation.) 3. The corner radius (R) must be 8A or over. In some cases, gasket may be supplied with welded pass ribs. (Please refer sketch below.) Welded pass rib does not affect sealing performance. A Welded construction A' Filler material Metal jacket Section A-A' 38

40 Heat Exchanger Gasket Standard Shape Codes Please indicate the shape code and dimensions when ordering. This shape is top view from Side A of right diagram. Side A Heat Exchanger Gasket Standard Shape Codes [HE1] [HE2] [HE3] [HE4] [HE5] O.D. I.D. O.D. I.D. O.D. I.D. O.D. I.D. O.D. I.D. t t t t t [HE6] [HE7] [HE8] [HE9] [HE10] O.D. I.D. t O.D. I.D. t O.D. I.D. t O.D. I.D. t O.D. I.D. t METAL JACKETED GASKETS [HE11] [HE12] O.D. O.D. I.D. I.D. [HE13] O.D. I.D. [HE14] O.D. I.D. [HE15] O.D. I.D. t t t t t [HE16] [HE17] [HE18] [HE19] [HE20] O.D. I.D. O.D. I.D. O.D. I.D. O.D. I.D. O.D. I.D. [HE21] O.D. I.D. t t [HE22] O.D. I.D. t t [HE23] [HE24] O.D. O.D. I.D. I.D. t t t t [HE25] O.D. I.D. t t [HE26] O.D. I.D. [HE27] O.D. I.D. [HE28] O.D. I.D. t t t 39

41 GRASEAL GASKETS Expanded graphite (GRASEAL) is a material processed from pure natural graphite by chemical treatment and heat treatment at more than This material provides outstanding heat and chemical resistance, and is excellent for gaskets with high flexibility and low creep. Features 1. Sealability remains almost same throughout a range of cryogenic to high temperature (400). 2. Excellent chemical resistance to almost all liquids other than strong oxidizing acids, etc. 3. Since cold flow and creep property are minor, it is not affected by over-tightening of gasket. Expanded Graphite Gaskets GRASEAL Gasket TOMBO No.1200/1210/1215 GRASEAL gaskets are cut from GRASEAL sheets or GRASEAL sheets with metal reinforcement. There are four types in accordance with the application. GRASEAL GASKETS TOMBO No GRASEAL Gasket Cut gasket from expanded graphite sheet (GRASEAL sheets) to be used for pipe flanges and valve bonnets, etc. This type is only recommended for small diameter gaskets due to its low mechanical strength. TOMBO No A GRASEAL Gasket MI-A Type 316 stainless steel sheet (0.1 mm thick) with hooks is sandwiched with GRASEAL sheets and then cut into specific sizes. Mechanical strength is high. As hook height is low, less damege (such as scrathing etc) to flanges. TOMBO No GRASEAL Gasket PM GRASEAL sheets are adhered to both sides of type 304 stainless steel sheet of 0.2 A thick. High in mechanical strength and easy to handle. As it can also be cut into complicated shapes, this type of gasket is widely used in various industries. TOMBO No A Grsaseal gasket PM-A The stainless steel sheet use in TOMBO No has been changed to SUS316 steel (50 micron). Applications For piping flanges, heat exchangers, valve bonnets, etc., in various industries and for special shape flanges for liquid level gauges. Applicable standards JPI-7S-79 Expanded Graphite Sheet Gaskets for Petroleum industry JIS F 7102 (TOMBO No only) Standard size Type Unit: A(values in brackets are actual thickness) Nominal thickness Maximum outer diameter (O.D.) TOMBO No (0.38) 0.8(0.76) 1.6(1.52) 3.2(3.04) ø600 TOMBO No.1210-A 1.5(1.50) 2.0(2.00) 3.0(3.00) ø1480 TOMBO No (0.86) 1.6(1.62) 3.2(3.14) ø580 TOMBO No.1215-A 0.8(0.81) ø (1.57) 3.0(3.00) ø1480 TOMBO No Cautions 1. Since TOMBO No.1200 gaskets are fragile, they are not recommended for narrow width gaskets or large-diameter gaskets. They are only recommended for nominal size of 4 inches or less. 2. The surfaces of GRASEAL Gaskets are easily damaged, which can result in leakage; therefore, handle with care. 3. Due to its nature, a very small amount of leakage is inevitable. When very high level of gas sealing is required, use TOMBO No.1215-T, 1215-AT which feature non-permeation treatment. (maximum service temp. 260) 4. In general, GRASEAL Gaskets cannot be used with the fluids listed in the table on page When handling TOMBO No.1210-A/ 1215/ 1215-A gaskets, pay attention not to scratch your fingers on the metal reinforcement. 40

42 Expanding Graphite Gaskets GRASEAL Gasket Tape TOMBO No.1220/1221 GRASEAL gasket tape is a self-adhesive tape with a peel off backing and it can easily be installed to all dimensions and shapes. Two different types are available for different applications. TOMBO No GRASEAL Gasket Tape (Plain) The surface of this GRASEAL Gasket Tape is smooth. The 0.25mm thick type is suitable for flanges with large diameters of 18 inches or over. TOMBO No GRASEAL Gasket Tape (Crinkled) This crinkle processed GRASEAL Gasket Tape is suitable for flanges with a diameter of about 16 inches or less. Applications 1. Use as a free-size gasket by applying directly to the flange surface. 2. Improving sealability of metal gaskets (TOMBO No.1840, 1850 etc.) by applying this tape on the sealing surface when seating stress is not adequate. 3. Plain tape with a thickness of 0.13A can be used as a tape sealant for high-pressure threaded joints up to 300. Cautions Do not use together with soft gaskets such as joint sheets. Service range and design standards Item Type TOMBO No GRASEAL Gasket TOMBO No A GRASEAL Gasket MI-A TOMBO No.1220 Standard sizes Type Thickness(A) Width(A) Length(mtr) TOMBO No TOMBO No TOMBO No GRASEAL Gasket PM TOMBO No A GRASEAL gasket PM-A TOMBO No. 1220, 1221 GRASEAL Gasket Tape GRASEAL GASKETS Gasket cross section Double-sided tape Stainless steel plate (SUS ) Stainless steel plate (SUS ) Stainless steel plate (SUS ) Double-sided tape Maximum service pressure MPa Service temperature Non-oxidizing atmosphere Oxidizing atmosphere Gasket coefficient m Minimum design seating stress y N/E Recommended seating stress for gas sealing. N/E Not applicable Type Oxidizing acids Oxidizing salts Halogen compounds Combustion promoting gas Fluid name Nitric acid, concentrated sulphuric acid, hot sulphuric acid, mixed acids, chromic acid,etc. Nitrate, chlorate, hypochlorite, etc. Bromine, fluorine, iodine, chlorine dioxide, etc. Oxygen (pure oxygen) 41

43 Fluoropolymer Gaskets Having Excellent Anti-corrosion Property NAFLON PTFE Cut Gasket TOMBO No.9007 This is anti-corrosion NAFLON gaskets made of pure PTFE sheets by punching to the prescribed dimensions and shapes. As PTFE offers outstanding chemical resistance and does not contaminate fluids, it can be used as a gasket material in a wide range of industries. For the services more than 100, filled PTFE gaskets which improve anticreep property is recommended. Applications Various corrosive fluids, such as strong acids, strong alkalis, organic solvents. Fluids where contamination is not allowed. Services where electrical insulating property is required. Applicable standards JPI-7S-75 TOMBO No Design standard TOMBO No. Standard thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use. NAFLON GASKETS Fluoropolymer Gaskets Having Low Creep Property NAFLON Glass Fiber Filled PTFE Cut Gasket TOMBO No.9007-G20 As PTFE is a thermoplastics, it easily softens at high temperetures and is also subject to cold flow. Under high bolt tightening, sealing stress is reduced by cold flow. In order to improve this property, 20% glass fibers filled PTFE is used. It can be used for almost all chemicals except strong alkalis, such as sodium hydrate etc. and hydrofluoric acid. For the services where TOMBO No G20 is not used, following gaskets are recommended. Service temperature more than 150 TOMBO No LC Strong alkalis, Hydrofluoric acid TOMBO No SC Applications Strong acids, such as Chloric acid, Nitric acids, Surfuric etc., organic solvents. Services where electrical insulating property is required. TOMBO No G20 Applicable standard JPI-7S Design standard TOMBO No. Standard thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa G Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

44 Fluoropolymer Gaskets Having Low Creep Property (Yellowish White Color) NAFLON Special Filler Filled PTFE Cut Gasket TOMBO No.9007-LC This is low creep PTFE cut gasket filled with a special anti-corrosion, highly temperature resistant inorganic filler. Its maximum service temperature is 200. This gasket can be used for almost all chemicals except hydrofluoric acid and strong alkalis. For hydrofluoric acid and strong alkalis, TOMBO No SC is recommended. Applications High temperature strong acids, such as chloric acid, nitric acid, sulfuric acid etc. Petroleum and petrochemical products, organic solvents, heat oil, heat media, steam. Services where electrical insulating property is required. TOMBO No LC Design standard TOMBO No. Standard thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa 9007-LC Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use. Fluoropolymer Gaskets Having Low Creep Property (Black Color) NAFLON Special Filler Filled PTFE Cut Gasket TOMBO No.9007-SC This is low creep PTFE cut gasket filled with special carbon. Its maximum service temperature is 200. This gasket can be used for almost all chemicals except oxidizing acids, such as sulfuring acid (conc.), nitric acid (conc.) etc. For oxidizing acids, TOMBO No is recommended. NAFLON GASKETS Applications High temperature strong alkalis, such as sodium hydroxide, potassium hydroxide etc. Petroleum and petrochemical products, organic solvents, heat oil, heat media, steam. TOMBO No SC Caution This gasket can not be used for the service where electrical insulation is rerquired. Design standard TOMBO No. Standard thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa 9007-SC Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use. 43

45 Flexible Fluoropolymer Gaskets (Brown Color) NAFLON GL Gasket TOMBO No.9007-GL This gasket is made from PTFE with special anti-corrosion and heat resistant filler. Good in flexibility and suitable for the pipings where high tightening stress can not be obtained, glass lined pipings and plastic pipings. This gasket can be used for almost all chemicals except strong alkalis such as sodium hydroxidie and hydrofluoric acid. For the process which required white color gasket, TOMBO No FD is recommended. Applications Pipings and equipment which high tightening stress can not be obtained, such as glass lined piping, plastic piping, equipment made from carbon, etc. Strong acids, such as chloric acid, nitric acid, sulfuring acid etc., organic solvents. TOMBO No GL Design standard Standard TOMBO No. thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa 9007-GL Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use. NAFLON GASKETS Flexible Fluoropolymer Gaskets (White Color) NAFLON FD Gasket TOMBO No.9007-FD This gasket is made from PTFE with special anti-corrosion and heat resistant filler. This is used for same application as TOMBO No GL but this gasket is white color and more flexible (soft) than TOMBO No GL. This can be used for almost all chemicals except strong alkalis such as sodium hydroxidie and hydrofluoric acid. For gas sealing, TOMBO No GL is recommended. Applications Pipings and equipment which high tightening stress can not be obtained, such as glass lined piping, plastic piping, equipment made from carbon, etc. Strong acids, such as chloric acid, nitric acid, sulfuring acid etc., organic solvents. TOMBO No FD Design standard Standard TOMBO No. thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa 9007-FD Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to page 45. Not recommended to use for gaseous fluids. 44

46 Less Permeable Fluoropolymer Gasket (Brown Color) NAFLON LP Gasket TOMBO No.9007-LP Brown color gasket made from special PFA. This PFA material has excellent chemical resistance, and permeation of chemicals and gases through resin is very small. Therfore, this gasket is suitable to seal halogens (chlorine, bromine etc.) which have very strong permeability to fluoropolymer. Applications Strong alkalis, such as chloric acid, nitric acid, sulfuric acid etc. and halogens. Petroleum and petrochemical products, various corrosive fluids, organic solvents. TOMBO No LP Design standard Standard TOMBO No. thickness A Maximum outer diameter A Gasket factor C Minimum seating stress y N/E Maximum allowable seating stress N/E Service temperature Maximum (1) service pressur MPa 9007-LP Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, please refer to the figure below. For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use. Service Range NAFLON PTFE Solid Gasket (TOMBO No Series) NAFLON GASKETS Notes : (2) Not recommended to use for full face (Type FF) flange. (3) Not recommended to use for gaseous fluids. 45

47 PTFE Enveloped Gaskets NAFLON PTFE Cushion Gasket TOMBO No.9010 The core of non-asbestos joint sheets, non-asbestos paper, etc., which have high cushioning properties, are covered with a thin PTFE film. This gasket is more resistant to creep than a PTFE cut gasket (TOMBO No. 9007). Due to the PTFE film covering the inner diameter and sealing surface of the gasket, there is no contamination of fluids. Furthermore, due to the excellent chemical resistance and solvent resistance of the PTFE film, this gasket can be used for a wide range of applications in various fields such as fine chemicals, petrochemicals, pharmaceuticals, foodstuffs, and general industries. Applications Various corrosive fluids, organic solvents. Fluids where contamination is not allowed. Where electrical insulation is required. TOMBO No NA-A-5, 9010-NA-R-A-5 Applicable standards JPI-7S-75 NAFLON GASKETS Gasket construction TOMBO No NA-A-7, NA-A-8, NA-A-9 Gasket type Cross section Construction and explanation A This is a standard enveloped gasket produced by slitting a sheet of PTFE and inserting cushion material, as shown. B AS This is an enveloped gasket for large diameters (generally 1000 mm dia. or larger). Oval gaskets are also available. Since there is a heat seal in one place, sealability is slightly inferior to that of type A. The use of NAFLON paste (TOMBO No. 9400) is recommended. The same as type A but with a square inner section. There is little space inside the gasket, so there is less possibility of damage by the rapid expansion of air due to temperature rises. Appropriate design of the inside diameter reduces the accumulation of liquid and smoothes the flow in the fluid. R-A R-AS The same as types A and AS but with the outer periphery sealed. Fluid from the exterior cannot penetrate or leak into the core. Because of this construction, even when used in vacuum lines, the covering strongly resists being pulled inside. Since there is no turning of the covering, setting is smooth even when the flange gap is narrow. 46 Cautions Please refer to page 49.

48 Type of Core Core type Cross section and core material Construction and explanation 5 Non-asbestos joint sheet Non-asbestos joint sheet (TOMBO No. 1995) is used as the core. Suitable for metal flanges which can obtain relatively high bolt tightening stress. 6 Non-asbestos paper Non-asbestos joint sheet The core is a combination of non-asbestos joint sheet (TOMBO No. 1995) and non-asbestos paper. Good in cushioning and suitable for glass lined flanges etc. 7 Non-asbestos joint sheet for high tempereture use Non-asbestos joint sheet of core type 5 is replaced with high temperature use non-asbestos joint sheet (TOMBO No. 1120). 8 Non-asbestos joint sheet for high tempereture use Non-asbestos paper Non-asbestos joint sheet of core type 6 is replaced with high temperature use non-asbestos joint sheet (TOMBO No. 1120). 9 Non-asbestos joint sheet for high tempereture use Stainless steel wire mesh The core is a combination of high temperature use non-asbestos joint sheet (TOMBO No. 1120) and stainless steel mesh. Notes : Cross sectional diagram is for A type. Indications 9010NA Core type NAFLON GASKETS Gasket type Indication for non-asbestos Design standard Type Minimum inside diameter A Maximum outside diameter A A AS B 300 As specified Core type Gasket factor C Minimum seating stress N/E Maximum allowable seating stress N/E Service temperature Notes : (1) Not recommended for use in locations with frequent thermal fluctuations exceeding 100 and pressure fluctuation, or in locations where maintenance work is difficult. Notes : (2) The indicated service pressures are for ambient temperatures. These values become lower at higher temperature. For detailed service range, please refer to page 49. Maximum (2) service pressure MPa 5, (1) 2.0 7, , (1) 2.0 7, , (1) 2.0 7,

49 NAFLON PTFE Cusion Gasket Standard products list for various piping For safety use by maintaining original function of NAFLON PTFE cushion gasket, we set the standard material, shape, dimension for several piping materials. Please select right products with refering the table below. NAFLON GASKETS TOMBO No (Type A, B, AS) Type of piping Flange standard Pressure rating Size Standard products Gasket type Core type Standard dimensions table 5 6 A 7 P98 5 K 10600A 8 9 P100 5 JIS B K 6 16 K AS 7 P99 20 K A B P98 6 A 7 8 Ordinery piping ASME B / 224B ASME B16.47 CLASS Series B CLASS 150 AS 7 (JPI-7S ) CLASS P83 P87 P86 (JPI-7S ) B B P83 ASME B16.1 CLASS B B Taylor Forge CLASS P ASME B16.47 CLASS Series A 2660B B (MSS SP ) CLASS A AS 7 JIS 10 K NAFLON lined 40300A A 7 piping 1 / 21B AS 7 ASME(JPI) 150 LB 1-1 / 212B A 7 P84 P101 P88 Glass lined piping Other Piping Asahi Techno 6 10K 20200A A Glass GL piping 8 Please consult with us for detailed designing. P97 TOMBO No NA (Type R-A, R-AS) Type of piping Gasket standard Pressure rating Size Standard products Gasket type Core type Standard dimensions table 5 R-A 6 7 P102 Ordinery piping JIS B K A 10 K 5 R-AS P103 Other Piping Please consult us for detailed designing. Please consult with us for the products other than standard material, struction and dimensions. 48

50 Service Range NAFLON PTFE Cushion Gasket (TOMBO No Series) Cautions for NAFLON Flange Finish The recommended surface roughness of metal flange is 6.3mRa. For Gas Sealing To seal gases, TOMBO No. 9400, NAFLON Paste shall be applied. For Installation Before setting the gasket, make sure that flange surface is free from foreign material or scratch. When setting the gasket, make sure to have enough distance between flanges. If gasket is forced to insert, it may cause leakage by damaging the gasket or peeling off of PTFE envelope. If enough distance between flanges are not available, "R" type is recommended. This type will prevent damage and peeling off of PTFE envelope during installation. For core types of 6 and 8, seating stress at compression failure declines when the gasket becomes wet. Therefore, store the gaskets in water-proof bags. In addition, take precautions so that gasket does not become wet by rain after installation. If the gasket is not tightened enough, soap-water from pneumatic testing or rain-water could permeate and soften the non-asbestos paper, pushing non-asbestos paper out of the gasket. Take precautions since in such cases, the seating stress on the gasket decreases and leakage can occur. Do not reuse materials that have already been used once. Seating Stress Seating stress of gasket shall be controlled to maintain 29.4N/mm 2 max. If gasket seating stress becomes more than this value, jointing sheet of the core may be destroyed. Uneven tightening also results excess seating stress partly and will cause for compressive failure. Special attention shall be paid for bolt tightening. For Fluoropolymer lined piping, we set recommended tightening torque size by size. For details, please consult us. PTFE Cushion Gasket Air tight test When air tight test is conducted after installation, bubble may be observed between PTFE envelope and core material. This is the air accumulated inside of cushioning material or between the cushioning material and PTFE envelop. Especially for core type 6 and 8, these core materials have such tendency. So, air tight test shall be conducted well after internal pressure is applied. Others Bolt tightening may be loosen in long time or after heat cycles. Bolt tightening shall be checked periodically and when bolt is loosen, re-tightening shall be done by initial bolt torque. When thermal stress or bending stress is repeatedly applied to the flanges, gasket seating stress is easily reduced. This gasket is not recommended for such part. Cautions for selection of PTFE Cushion gasket Some of the fluids may permeate to inside of the gasket thru PTFE envelope. Especially nitric acid, ethylene chloride, halogens (chroline, bromine, etc.), molten sulfur and monochloroacetic acid may attack the cushioning material by permeation in long time and as a result, gasket function will be lost. In such case, gasket shall be changed periodically or use PTFE cut gasket instead. When type "A", "B" and "AS" type is used for vacuum service, PTFE envelope may be pulled in. In such case, "R" type is recommended. Due to its shape of "A" type, fluid may remain in the space between flanges and gasket. To avoid this fluid remaining, "AS" type with appropriate gasket inner diameter shall be used. For plastic, glass and rubber lined pipings, each flange has different gasket dimensions although flange standard is JIS standard. Please consult us for proper gasket dimensions if the gaskets are used for such pipings. NAFLON GASKETS 49

51 NAFLON GASKETS Electrical Insulation Bolt Kit TOMBO No.9910 / 9910-H Electrical Insulation Bolt kit is designed for cathodic protection. This kit consisits of bolt with factory applied insulating sleeve, insulating washers, metal washers and nuts. Features Excellent in electrical instulating performance As all contact area with metal is covered with fluoropolymer and other high performance materials. Easier installation. As insulating sleeve is already applied to bolt, trable of fitting during installation, such as cracking, chipping, displacement etc. can be eliminated Solution for complicated purchasing and management. The problem of excess and deficiency will be resolved because necessary number of metal washer, insulation washer and nut are combined as a set for one bolt. Standard Size ASME Flanges : Class 150-1/2" to 60" Class 300-1/2" to 60" JIS Flanges Indication of size Standard size : 10K - 10A to 1500A 20K - 10A to 900A : "Pressure rating" x "Flange size" ex. Class 150 x 8", JIS 10K x 200A Non-standard size : "Thread dia." x "Total Length" x "Insulation sleeve length" ex. M20 x 100L x 40LS Design standard Service Temperature Insulating Sleeve Insulating Washer Bolt For ASME flange For JIS flange Nut For ASME flange For JIS flange Metal washer (as per JIS B1256) TOMBO No PVdF coating by baking (PVdF: Polyvinylidene fluoride) Glass reinforced epoxy (FRP) SNB7 (Unified screw thread) SS400 (Metric screw thread) S45C SS400 SS400 TOMBO No TOMBO No H Insulating Bolt Metal Washer Insulating Washer PVdF Coating Cross Section : TOMBO No Insulating Gasket TOMBO No.9910-H (with FRS washer) PTFE tube lining Glass reinforced epoxy (FRP) : up to 180 or Glass reinforced sillicone (FRS) : up to 200 SNB7 (Unified screw thread) SS400 (Metric screw thread) S45C SS400 SS400 Physical properties of insulaing material 50 This table shows pyscal properties of insulating materials to be used for parts of insulation bolt kit. Pyscal properties of each part of insulation bolt may vary from this table due to manufacturing process and size. Above fugure is general characteristics. Not for specification nor guarantee. PVdF PTFE FRP FRS (Epoxy) (Silicone) Tensile Strength Mpa Compressive Strength Mpa Hardness Shore D Shore D Rockwell Rockwell Dielectric Strength KV/A > Volume Resistivity -B >10 14 >10 18 >10 14 >10 16 >10 11 >10 15 Surface Resistivity >10 13 >10 16 >10 12 >10 14 >10 12 >10 14 Water Absolution 0.04 < <0.35 Heat Resistance

52 Electrical Insulation Gasket NAFLON PTFE has excellent electrical insulating properties. This electrical insulating gasket is made of PTFE and to be used for electrical insulation between flanges. TOMBO No.9010-NA-E5 / 9007-LC 2 types of gaskets are available for your application. Features TOMBO No NA-E5 This gasket is flexible and can be sealed with relatively low seating stress. As PTFE has very good chemical resistance as well, it can be used for various types of fluids such as corrosive fluids (acids / alkalis), organic solvents etc. TOMBO No NA-E5 TOMBO No LC This gasket is punch out gasket from low creap PTFE sheet with special inorganic filler. Maximum service temperature is 200. Design standard TOMBO No NA-E5 TOMBO No LC Type Cross section and core material Structure A type (Up to 24B or 600A) B type (26B or 650A and above) NAFLON PTFE Sheet TOMBO No.1995 Non-asbestos joint sheet NAFLON PTFE Sheet TOMBO No.1995 Non-asbestos joint sheet Standard products. Ring shape PTFE is slitted and inserting cushion materials (TOMBO No. 1995) Standard size is up to 24" or 600A. NAFLON GASKETS TOMBO No.9007-LC Standard products for large diameter (26" and avove) or oval shape. As there is a heat seal in one place, seal performance is inferior to that of A type. Standard Size ASME Flanges : Class 150-1/2" to 60" Class 300-1/2" to 60" JIS Flanges : 10K - 10A to 1500A 20K - 10A to 900A Service Range Pressure (MPa) TOMBO No.9007-LC TOMBO No.9010-NA-E5 (1) Temperature() : (1) Not recommended for use in locations with frequent thermal fluctuations exceeding 100 and pressure fluctuation, or in locations where maintenance work is difficult. 51

53 Other Fluoropolymer Gaskets TOMBO No A TOMBO No PFA TOMBO No TOMBO No TOMBO No. 9096(OVAL) Type TOMBO No. Product Name Construction and explanation Cross section Applications, service conditions Service temperature 9022-A NAFLON PTFE Covered RubberO-ring This rubber O-ring is covered with thin (0.4A) PTFE film. PTFE covering has one overlap joint, but it is not secured with adhesive. We offer type A and type B, and type A is used for gaskets. (Type A) Used as internal pressure sealing gaskets. Cannot be used for shaft sealing (both fixed and moving). Depends on the rubber material. O-ring 9022-PFA NAFLON PFA Covered Rubber O-ring This fluoro-rubber (FA) O-ring is completely covered with a PFA tube. The PFA is seamless but the inner rubber O- ring has an open joint. When used as a fixed O-ring, use at a compression ratio of 20-30%. This gasket is fitted into the groove like a rubber O-ring NAFLON GASKETS NAFLON PTFE O-ring NAFLON SP Packing This O-ring is machined form PTFE. There are three types: pure PTFE (TOMBO No. 9028), glass filled PTFE (TOMBO No G20) and graphite filled PTFE (TOMBO No.9028-GR30). A free-size string shape packing made by extruding unsintered PTFE. Used for flange groove in the same way as rubber O-rings. Compression ratios are higher than for rubber O-rings. O- ring diameter 3.5A or less: 28% or more; A: 24% or more; 5.7A or larger: 22% or more. Flanges for chemical ducts, low-pressure gas, etc NAFLON GASKETS Free-size gasket 9096 NICHIAS Soft Seal Soft type gasket made of expanded PTFE. Various cross sectional shapes are available such as oval, round (R), flat (B), square (K), tube (TB) as well as flat sheet (S). Oval shape is supplied with adhesive tape. Round (R) and tube (TB) shapes are supplied without adhesive tape. For flat (B), square (K) and flat sheet (S) shapes, both with and without adhesive tape are available. Other NAFLON gaskets available are TOMBO No NAFLON Vortex and TOMBO No NAFLON Manhole Gasket. For details, refer to each section. (Oval type) Ducts, casing, large-diameter vessels, various types of lined vessels, etc Standard dimensions TOMBO No. Diameter (A) x Length (mtr) TOMBO No. Thickness(A)Width(A)Length(mtr) Note: TOMBO No (oval) is treated with adhesive tape. TOMBO No TB OD (A)ID (A)Length (mtr) TOMBO No. Diameter(A) Length(mtr) R Note: TOMBO No (round) is not treated with adhesive tape TOMBO No. Thickness(A)Width(A)Length(mtr) BT B KT K TOMBO No. Indications of type Thickness(A) Width(A)Length(A) S (Without adhesive tape) ST (With adhesive tape)

54 Manhole Gasket Features : These are cloth gaskets coated with a rubber compound, matching the shape of the manhole. These gaskets are not completely airtight and should be used only where a certain amount of leakage is allowable. Suitable for application to large diameter distorted flanges and flanges to which only low seating stress is applied. Types TOMBO No. 1374, 1400-NA, 1400-S TOMBO No. Product name Construction Application Maximum service temperature () Coroer G 1378 NA Manhole gasket NA Manhole gasket (Treated with graphite) NA gasket with core Made by coating glass cloth with natural rubber using endless processing method. TOMBO No is treated with graphite for anti-sticking. Both sides of the TOMBO No NA gasket tape with core are sewn into a ring with glass yarn to make the gasket. Manholes/handholes for exhaust gas, hot air, etc. autoclaves, large diameters flanges White Black White 1400-TH FF Manhole gasket Both sides of the FINEFLEX cloth reinforced with metal wires are coated with a special composition rubber and an endless processing method is used. 600 White 1400-THG FF Manhole gasket (Treated with graphite) TOMBO No TH is treated with graphite for anti-sticking. 600 Black CLOTH GASKETS 1400-NA 1400-ST Super Manhole Gasket Super Manhole gasket-st The based cloth is woven by using metal wires as the warp and glass yarn reinforced by metal wires as the woof, then coating the cloth with rubber and using an endless processing method. The base cloth is woven by using metal wires as the warp, and ceramics yarn containing metal wires as the woof, then impregnating the cloth with heat resistant joint filler and using an endless processing method. Diesel engine exhaust pipes, flue gas duct manholes, boiler combustion duct sealing materials Black White 1400-S Super Manhole Gasket-S The based cloth is woven by using metal wires as the warp and ceramic yarn reinforced by metal wires as the woof, then impregnating the cloth with heat resistant joint filler and using an endless processing method. 800 Black 9094 NAFLON Manhole gasket Inorganic cloth, woven using a special method, is impregnated with PTFE dispersion. This is then formed into the shapes of various gaskets. Ducts requiring chemical resistance and solvent resistance/ducts for corrosive gases such as acid exhaust gas, and general gases. 300 White 54

55 Gasket Tape Features : This is a cloth tape gasket coated with a rubber compound to form a multi-layer structure. These gaskets are not completely airtight and should be used only where a certain amount of leakage is allowable. Suitable for application to large diameter distorted flanges and flanges to which only low seating stress is applied. TOMBO No Types TOMBO No. Product name Cross Section Construction Application Maximum service temperature () Coroer 1364 NA Gasket Tape 3 layer wrap 4 layer wrap A tape shaped gasket made by glass cloth with natural rubber coating and then folding it. Manholes/handhol es for lowpressure steam, exhaust gas, hot air, etc., autoclaves, large diameters flanges. 400 White G NA Tadpole Gasket tape NA tadpole gasket tape (Finished with graphite) A tape shaped non-asbestos gasket. This is made by woven glass cloth with rubber compound and winding it into a Vortex core. Then the outer covering made of the same materials is formed, as shown in the diagram. TOMBO No is treated with graphite for antisticking. Doors and dampers for furnaces, heaters and dryers, etc. Manholes for exhaust gas, hot air, and dust, etc White Black CLOTH GASKETS Standard dimensions Type Manhole Gasket Gasket tape TOMBO No. Nominal thickness , 1374-G TH,1400-THG 1400-ST 1400-NA 1400-S , 1368-G Dimensions As specified. Width : 13, 20, 25, 30, 40, 50A Length: 30mtr Height : 6.4, 7.9, 9.5, 11.1, 12.7, 15.9, 19.1, 22.2, 25.4A Width : 50A Length : 30mtr 55

56 Rubber Cut Gasket Features : The elasticity, recovery and compatibility of rubber are utilized to assure sealing at the lowest seating stress. TOMBO No is reinforced with polyester cloth, but is unsuitable for gas sealing. Applications Select the material in accordance with the service conditions for various piping flanges, equipment, etc. Service Range Service temperature range : depends on the rubber material. Maximum service pressure : 1.0MPa Type TOMBO No. Product name Construction 1050 Rubber Cut Gasket Gasket cut from various types of rubber sheets Gasket cut from various types of Cloth Reinforced rubber sheets reinforced with Rubber Cut Gasket polyester cloth. TOMBO No.1051 is only available for "NBR", "CR" and "NR". TOMBO No.1050/1051 Standard dimensions Unit: A Thickness Others Width 1000 Length 1000, 2000, 5000, 10000, ZR and PF dimensions are 300 (W) x 300 (L) x 1, 1.5, 2 or 3A (T). RUBBER GASKETS Rubber O-ring TOMBO No.2670 Features : These are self-sealing type rubber O-rings produced by molding various types of rubber into circular shapes. These can be used as shaft seals (packing) and as gaskets by fitting them into grooves. Sealing is good even with low tightening loads and throughout a range from vacuum to high pressure up to 25MPa. For semi-conductor / LCD production equipment use or high temperature application up to 300, other brochure is available separately. Please consult with us for details. Applications Select the material in accordance with the fluid (materials are the same as for TOMBO No. 1050). Gaskets for various types of devices. Service range Service temperature range : depends on the rubber material. Maximum service pressure : 25MPa (can be used for greater pressure if used with back-up ring.) Indications 1050 Material code TOMBO No. Material codes and materials Applicable standards JIS B 2401 AS 568 A 2670 Material code TOMBO No. Material code NBR CR EP IIR SI FA FS NR ZR PF Materrial Nitryl rubber (oil resistant) Chloroprene rubber (weather resistant) Ethyl propylene rubber (weather resistant, steam resistant) Butyl rubber(weather resistant, acid resistant, steam resistant) Silicone rubber (weather resistant, cold resistant) Fluorocarbon rubber (heat resistant) Fluorocarbon rubber (corrosion resistant) Natural rubber Hydrogen added nitryl rubber (oil resistant) Perfluoroelastomer rubber (corrosion resistant) Service temperature TOMBO No.1050 TOMBO No.1051 TOMBO No

57 Ebilon Gasket (Solid Rubber)TOMBO No.9013-EP/-DEP Features : Rubber molded gaskets having a cross sectional shape as per diagram below. Reliable sealing performance is obtained even at lower seating stress than that of rubber gasket. Recommended for locations where service conditions are not critical and chemical resistance is not particularly required. Types There are two types using different types rubber. TOMBO No EP: EPDM TOMBO No DEP: Special EPDM for electrolytic cells. Service range Service temperature : Maximum service pressure : 1.0MPa Flange : Full face TOMBO No EP Standard dimensions Plastic flanges (equivalent to JIS 10K): 15A - 300A ASME B16.5 (JPI), Class 150 1/2B 24B Rubber Rubber Ebilon Gasket (PTFE Jacketed) TOMBO No. 9013/9013-D Features : Rubber molded gasket having the same cross sectional shape as TOMBO No.9013 but sealing surface is jacketed with PTFE film. This gasket has the elasticity of rubber and the corrosion resistance of PTFE simultaneously and gives good sealing performance. Ebilon gaskets are ideal for applications such as PVC piping and glass lining piping, where only low seating stress is attainable. Types There are two types using different rubber. TOMBO No : PTFE jacketed EPDM TOMBO No D : Special EPDM with jacketed PTFE for electrolytic cells. Service range Service temperature : Maximum service pressure : 2.0MPa Flange : Full face flanges Flange finish : 6.3 Ra or smoother TOMBO No RUBBER GASKETS Standard dimensions Plastic flanges (equivalent to JIS 10K): 15A - 300A ASME B16.5 (JPI), Class 150 : 1/2B 24B PTFE Rubber Rubber 57

58 Sanitary Use Gasket Saniclean Gasket TOMBO No.9014 This is sanitary use rubber molded gaskets having PTFE film covering on the sealing surface of the gasket. Thanks to this unique structure, this gasket has advantages of rubber gasket and PTFE. Following types are available. For thread connector TOMBO No A (Black color EPDM rubber) For ferrule TOMBO No B (Black color EPDM rubber) TOMBO No BW (White color EPDM rubber) Features All the contact surface with fluid is covered with PTFE film. So, it is durable against hot water, alkalis, chlorine water etc. and lasts longer than rubber gaskets. As all the contact surface with fluid is PTFE, fluid is not adhered to surface and not permeate to inside. So contamination at flavor change is avoided. Sanitation process and time can be reduced at flavor change and increase productivity. Basically same application procedure as conventional rubber gasket but re-tightening process is required additionally. Note : Flavor change : Change of product at common use beverage manufacturing process such as bottling etc. Sanitation : Cleaning work. Washed with clean water, chlorine water, hot water, alkalis etc. TOMBO No A, For thread connector TOMBO No B, for Ferrule (Black rubber) TOMBO No BW, For Ferrule (White rubber) OTHER GASKETS Standard dimensions TOMBO No A (For thread connector) RubberEPDM A A B PTFE0.3t B 48 C TOMBO No B / BW (For Ferrule) PTFE0.3t RubberEPDM 20 C Nominal Size (Inch) TOMBO No A (Thread) TOMBO No B, BW (Ferrule) Type A B C A B C / / Standard dimensions for TOMBO No A, B, BW are set by us in accordance IDF standard. However, it can also be used for the connectors and ferrule as per ISO 2852 and ISO * TOMBO No. 9014, Saniclean Gasket conforms to standard of food and food additives (Notice by Japanese ministry of health and welfare No. 370 in year 1959), No.3-D-2, apparatus of synthetic resin. Also it passed material and elution test of container and packaging material (Notice by Japanese ministry of health and welfare No. 85, revised in 1986). R1.2 B 58

59 Other Gaskets TOMBO No TOMBO No TOMBO No P Type Rubber coated metal gasket Foamed rubber coated metal gasket Non-asbestos beater sheet Non-asbestos mill board TOMBO No. Product name 1600 METAKOTE 1608 METAFOAM 6526 NA Beater sheet 6750-P Vermosul Sheet-P Construction and features A high-performance gasket material formed from the lamination of rubber and metal sheet. Both sides of metal sheet are coated with rubber and finished with graphite. Gasket material made of metal sheet coated with foamed rubber for excellent sealing and vibration damping properties. Non-asbestos beater sheets made of special heat-resistant fibers, NBR rubber latex and heat-resistant fillers. Non-asbestos mill board made of inorganic minerals and inorganic binder. Application Engine Gaskets, Cylinder head gaskets, Hydraulic and Pneumatic equipment gaskets Compressor gaskets (air conditioning, freezer, refrigerator etc.), sealing washers Engine gasket, Hydraulic and Pneumatic equipment gaskets Gaskets for oil and water devices, etc. Combustion gas seals for hot air heaters, high-temperature (low pressure) gaskets. Cannot be used as gaskets for pipings and equipment. Not suitable for fluid sealing. Max temperature() Depends on grade Depends on grade 150 Applicable standards ASTM F104 (F304140) 800 Standard Products of METAKOTE / METAFORM Typical grade TOMBO No. 1600, METAKOTE Grade For automobile gaskets TS Combination of cold rolled steel (carbon steel) and NBR JZ Combination of stainless steel sheet SUS301H and NBR LZ Combination of stainless steel sheet SUS301H and Fluoroelastomer (FKM) Grade For refrigerators RS Combination of cold rolled steel (carbon steel) and NBR RA Combination of aluminum sheet and NBR Grade Notes : (1)These grades are subject to change without notice. Notes : (2)For other application such as brake shim, washers etc., please consult us. Master coil size of METAKOTE / METAFOAM Master coil width : 914 mm width (effective width 876 mm) PS PA TOMBO No. 1608, METAFOAM For general purpose Combination of cold rolled steel (carbon steel) and NBR base foam rubber. Combination of aluminum sheet and NBR base foam rubber. Slited coils to your requirement is also available. OTHER GASKETS Standard Dimensions of NA beater sheet / Vermosul sheet -P NA beater sheet Unit: A Vermosul sheet-p Unit: A Thickness Thickness TOMBO No TOMBO No.6750-P

60 Gasket Paste Gasket paste is a sealing aid that enhances the sealing performance of various types of gaskets, prevents scorching and leaks. Warning Gasket paste is for supplementing the sealing function of gaskets and cannot be used alone. Always use to apply on gaskets. Aqua-tight Paste Gasket paste for water base fluids, made of fine mica particles mixed with special oil-soluble binder. TOMBO No.9105 Fluids Maximum service temperature Color Coverage Package Water type fluids such as water, water vapor, sea water, acids, alkalis,salt solutions, etc Light beige Approx. 200N/G (12.5G/can) 2.5O plastic container Notes: Do not use for fluids if even slight dissolution is prohibited. Oil-tight Paste Gasket paste for oil base fluids, made of fine mica particles mixed with oil and solvent resistance water soluble binder. TOMBO No.9106 Fluids Maximum service temperature Color Coverage Package Petroleum type oils, oil gas, solvents, solvent vapor, animal oils, hydrocarbon type fluids, exhaust gas, etc. This is suitable for oil, etc Light beige approx. 200N/G (12.5G/can) 2.5O plastic container Notes: Do not use for fluids if even slight dissolution is prohibited. Anti-corrosion Paste Gasket paste for asbestos and NA joint sheets when they are used for stainless steel flanges. Coating anti-corrosion paste on the surface of the gasket prevents corrosion and pitting of stainless steel flanges. TOMBO No.9120 GASKET PASTE Fluids Maximum service temperature Color Coverage Package Water (except brine). Oil, etc. 250 Gray Approx. 350N/G (8.5G/3O can) 1O can and 3O can Notes: Do not use for fluids if even slight dissolution is prohibited. Hazardous cargo for ocean / air transportation, IMCO class 3, UN No.1993, Flash point For details, please refer to MSDS available separately. 60

61 NAFLON Paste General purpose gasket paste, made by dispersing fine colloidal particles of PTFE in water. This gasket paste is inactive at ambient temperature. As it is also chemical resistant, this paste can be used for acids and corrosive fluids. For PTFE type gasket, this paste is most suitable. TOMBO No.9400 Fluids Water, oil, acid, corrosive fluids, vacuum. Maximum service temperature Color Coverage Package 260 White Approx. 50N/G (2G/tube) 65" (approx. 100N) tube. Notes: Do not use for fluids if even slight dissolution is prohibited. PTFE Grease Lubricating grease made from PcTFE oil mixed with fine PTFE particles in it. Good in heat and chemical resistance and lubrication. This grease is incombustible. TOMBO No.9401 Fluids Oxygen, corrosive fluids, vacuum. Maximum service temperature Color Coverage Package 150 White Approx. 50N/G 50N tube. Notes: Do not use for fluids if even slight dissolution is prohibited. Cautions 1. For gasket paste in can, stir well before using. 2. Small amount layer with a brush, waste, etc. Excessive application may result in gasket damage. 3. To improve the gas sealing performance with joint sheet, apply gasket paste on the inner circumference to avoid leakage. 4. Place the gasket on the flange before the gasket paste completely dries. 5. Store in a cool, dark place. GASKET PASTE 61