Steel Ball Valves Floating Ball Design PROVIDED BY: PT. SINAR MAS SAKTI

Transcription

1 Steel Ball Valves Floating Ball Design

2 KITZ Steel Ball Valves Floating Ball Design The products introduced in this catalog are all covered by ISO 91 and 92 certification awarded KITZ Corporation, KITZ Corporation of Europe, S.A. and KITZ Corporation of Taiwan. KITZ Corporation of Taiwan, Kaohsiung Plant, Taiwan (ISO 92) KITZ Corporation of Europe, S.A., Barcelona Plant, Spain (ISO 91) KITZ Corporation, Ina Plant, Japan (ISO 91) Contents Design and Inspection Standards 1 KITZ Product Coding 1 Product Range 2 Pressure-Temperature Ratings 6 Design Features 1 KITZ HYPATITE PTFE Ball Seats 13 KITZ Ball Seat Materials 14 Class 15/3 Carbon Steel (Split body) Ball Valves 15 Class 15/3 Carbon Steel (Uni-body) Ball Valves 16 Class 6/15 Carbon Steel (Split body) Ball Valves 17 Class 15/3 Stainless Steel (Split body) Ball Valves 18 Class 15/3 Stainless Steel (Uni-body) Ball Valves 19 Class 6/15 Stainless Steel (Split body) Ball Valves 2 Class 15 Low Temperature Service Ball Valves 21 Class 3 Low Temperature Service Ball Valves 22 Class 15 Stainless Steel 3-way Ball Valves 23 Class 15 Stainless Steel Pocketless Ball Valves 24 Class 15 Stainless Steel Jacketed Ball Valves 24 Class 15 Stainless Steel Tank Ball Valves 25 JIS 1K Stainless Steel PFA Lined Ball Valves 25 Type 6/1 Carbon Steel Ball Valves (Threaded) 26 Type 15/2 Carbon Steel Ball Valves (ThreadedFiresafe) 26 Type 15/2 Carbon Steel Ball Valves (Threaded) 27 Type 15/2 Welded Body Carbon Steel Ball Valves (Threaded) 27 Class 8 Welded Body Carbon Steel Ball Valves (Threaded) 28 Type 3 Welded Body Carbon Steel Ball Valves (Threaded) 28 Class 8 Carbon Steel Ball Valves (Welding) 28 Type 3 Carbon Steel Ball Valves (Welding) 28 Type 1 3-piece Carbon Steel Ball Valves (Threaded or Welding) 29 Type 6/1 Stainless Steel Ball Valves (Threaded) 3 Type 8 Stainless Steel Ball Valves (Threaded) 3 Type 1 Stainless Steel Ball Valves (Threaded) 31 Type 15/2 Stainless Steel Ball Valves (ThreadedFiresafe) 31 Type 15/2 Stainless Steel Ball Valves (Threaded) 32 Type 15/2 Welded Body Stainless Steel Ball Valves (Threaded) 32 Type 1 3-piece Stainless Steel Ball Valves (Threaded or Welding) 33 Type 8 Stainless Steel 3-way Ball Valves (Threaded) 34 Class 15 Stainless Steel Ball Valves (Threaded) 34 Dimensions of Actuator Mounting Pads 36 KITZ Corporation, Nagasaka Plant, Japan (ISO 91) Construction and Materials 39 Technical Information Technical Features of KITZ HYPATITE PTFE and SWELLESS Ball Seats 48 Fire Test Standards 5 General Precautions 52 Flow Characteristics 53 Steel Pipe Flanges 54

3 KITZ Steel Ball Valves Floating Ball Design Design and Inspection Standards of KITZ Flanged Ball Valves Product Coding for KITZ Flanged Ball Valves Example: 15 U T A M (Uni-body, end entry design) G- 15 SC T B M -FS Valve operational measure None Lever handle G Worm gear E Electric actuator B KITZ Type B actuator BS KITZ Type BS actuator BSW KITZ Type BSW actuator FA KITZ Type FA actuator FAS KITZ Type FAS actuator ASME pressure class 15, 3, 6 or 15 Shell material SC Carbon or low alloy steel U Stainless or high alloy steel Shell material An additional symbol is suffixed here, if other than WCB or CF8 is employed for shell material, such as: M CF8M BL LCB V CF3 CL LCC O CF3M 1L LC1 CB CF8C 2L LC2 CG CG8M 3L LC3 CK CK2 SD CD3MWCuN CN CN7M HB N-12MV HC CW-12MW Symbol for ball valves Valve design B Full port, split body with KITZ actuator mounting pad A Regular port, uni-body with ISO actuator mounting pad (Split body, side entry design) Valve type P Pocketless 2L 3-way 2-seat, L-port 2T 3-way 2-seat, T-port 4LA 3-way 4-seat, L-port 4TA 3-way 4-seat, T-port J Jacketed X Extended stem LN PFA lined Trim material for carbon steel valves No symbol suffixed for 34 s/s trim. M suffixed for 316 s/s trim. No symbol suffixed for PTFE packing and gasket. -FS or S suffixed for flexible graphite packing and gasket for super-firesafe provision. Seat Material None HYPATITE PTFE 1H FILLTITE This catalog uses MPa, a SI unit, for indication of pressures. psi and kgf/cm 2 are also added for readers convenience. 1

4 Product Range Flanged Floating Ball Valves Bore design: F=Full port, R=Reduced port Worm gear operation is standardised for the sizes marked with the prefix G- on each KITZ product code. Please contact KITZ Corporation for details. Refer to KITZ Ductile Iron Valves catalog (No. E-14) for detailes. Refer to KITZ Cast Iron Valves catalog (No. E-12) for detailes

5 Product Range Flanged High Performance Ball Valves Bore design: F=Full port Operation: L=Lever, G=Gear Worm gear operation is standardised for the sizes marked with the prefix G- on each KITZ product code. Refer to KITZ Graphite and Metal Seated Ball Valves catalog (No. E-24) for detailes. Refer to KITZ -port Quarter-Turn Control Valves catalog (No. E-23) for detailes. Please contact KITZ Corporation for details

6 Product Range Flanged Trunnion Mounted Ball Valves Bore design: F=Full port (Reduced port type is also available.) Worm gear operation is standard for the sizes marked with the prefix G- on each KITZ product code. Non firesafe types are also available. Refer to KITZ Trunnion Mounted Ball Valves catalog (No. E-22) for details. Trunnion Mounted Ball Valves 4

7 Product Range Threaded or Welded Ball Valves Bore design: F=Full port, R=Regular port, D=Reduced port Rc threaded ends are standard. Prefix AK means NPT threaded end. Rc threaded ends are standard. Prefix AK means NPT threaded ends and AW means socket welded ends. NPT threaded ends are only available. Please contact KITZ Corporation for details. Refer to KITZ Ductile Iron Valves catalog (No. E-14) for detailes. Refer to KITZ Cast Iron Valves catalog (No. E-12) for detailes port Ball Valves 5

8 Pressure-Temperature Ratings The pressure-temperature ratings of ball valves are determined, not only by valve shell materials, but more essentially by sealing materials, used for ball seats, gland packing and gaskets. Sealing materials may be high molecule, or rubber, but the choice is limited by the characteristics of the service fluid, working temperatures, working pressures, velocity of fluid, and operational frequency of valves. As it is very difficult to predetermine the exact pressuretemperature rating for all kinds of fluid under all imaginable conditions, we have prepared general rating charts for nonshock fluid service here, based on our past experiences both in the field and in our laboratory. In case of extraordinary service conditions as mentioned below, contact KITZ Corporation or its distributors for technical advice: 1. Valves shall be left fully closed for a long period of time under high temperature or high differential pressure. 2. Valves shall be frequently operated under high temperature or high differential pressure. 3. Frequent change of line pressure or temperature. HYPATITE PTFE is the standard seat material for KITZ ball valves. Specify virgin PTFE or carbon-filled PTFE when required. The body ratings shown here are for ASTM A216 Gr. WCB and A351 Gr. CF8M. For the pressure ratings of other valve shell materials, refer to the latest edition of ASME B FILLTITE is a specially reinforced ball seat, made by using carbon based fillers into PTFE at higher rate than conventional carbon filled PTFE, which greatly improves heat and abrasion resistance. The material shows excellent operability, durability, chemical resistance and sealing performance at a high temperature of 3. In addition, the ball seat is replaceable with the most of our conventional ball seats, so it also has the cost advantage. Pressure Pressure MPakgf/cm 2 psi MPakgf/cm 2 1 Seat: A : Virgin PTFE 6.2 B : HYPATITE PTFE or Carbon-filled PTFE C : FILLTITE A B C 2 3 Temperature C F Pressure MPakgf/cm 2 psi MPakgf/cm 2 1 Seat: A : Virgin PTFE B : HYPATITE PTFE or Carbon-filled PTFE C : FILLTITE A B C Class 3 WCB body rating Class 3 CF8M body rating Class 15 WCB body rating Class 15 CF8M body rating Class 3 WCB body rating Class 3 CF8M body rating Class 15 WCB body rating Class 15 CF8M body rating Pressure Note* 1 A B C 2 3 Temperature A B C Seat: A : Virgin PTFE B : HYPATITE PTFE or Carbon-filled PTFE C : FILLTITE Class 3 WCB body rating Class 3 CF8M body rating Class 15 WCB body rating Class 15 CF8M body rating psi C 4 5 Seat: A : Virgin PTFE B : HYPATITE PTFE or Carbon-filled PTFE C : FILLTITE Class 3 WCB body rating Class 3 CF8M body rating 572 F Class 15 WCB body rating Class 15 CF8M body rating psi C C Temperature F Temperature F Note*: Continuous pressurization is not recommended in this P-T range. 6

9 Pressure-Temperature Ratings Pressure Pressure MPakgf/cm MPakgf/cm C 2 Note* Ball Seat Materials : KITZ HYPATITE or Carbon-filled PTFE : Glass-filled PTFE with MoS2 : Virgin PTFE : Nylon with MoS2 A 1 B 2 3 Temperature C Note*: Continuous pressurization is not recommended in this P-T range Temperature C Seat: A : Virgin PTFE B : HYPATITE PTFE or Carbon-filled PTFE C : FILLTITE Class 3 WCB body rating Class 3 CF8M body rating Class 15 WCB body rating Class 15 CF8M body rating Class 15 WCB body rating Class 15 CF8M body rating Class 6 WCB body rating Class 6 CF8M body rating psi F psi F O-ring Upper Limit : 1FPM 2Low-temperature FPM : 1EPDM 2ECOEpichlorohydrin Copolymer : 1NBR 2Low-temperature NBR O-ring Lower Limit : FPM Pressure Pressure MPakgf/cm MPakgf/cm Temperature psi C Temperature Refer to 15UTBM ratings for 15UTB2LM/2TM Max. velocity: Liquid3m/sec Gas3m/sec SeatHYPATITE PTFE 5 SeatHYPATITE PTFE 572 F Degree of vacuum (MPa) C 3F psi

10 Pressure-Temperature Ratings Type 6:SCTK/UTKM Pressure MPakgf/cm Type 8:UTHM Pressure MPakgf/cm Temperature Type 8:UTH4LM/4TM Pressure 2 2 MPakgf/cm Temperature SeatReinforced PTFE psi C F psi C 4 SeatPTFE F psi 1 Max. velocity: Liquid3m/sec Gas3m/sec SeatHYPATITE PTFE Type 1:SCTK/UTKM/UTFM Pressure MPakgf/cm Temperature Class 8 and Type 3:SCTK Pressure MPakgf/cm 2 3WOG * Polychloro-Trifluoro-Ethylene 2 Type 1:SC3TZ/U3TZ Series Pressure 2 2 Class 8 3 Temperature SeatHYPATITE PTFE psig C 4 5 BS Class 8 body rating 572 F psi C MPakgf/cm 2 SeatHYPATITE PTFE Seat: 1 : PTFE 2 : PCTFE* F psig C C Temperature F Temperature F Note: Type 15 is optionally available 8

11 Pressure-Temperature Ratings Type 15/2: SCTKZM-FS/UTKZM-FS AKSCTHZM/AKSCTWZM/AKUTHZM/AKUTWZM Pressure MPakgf/cm SeatHYPATITE PTFE psi 25 C Class 15:AK15UTM Pressure MPakgf/cm F 2 Temperature Temperature psi C 4 SeatPTFE F 9

12 KITZ 15/3 SCTB/UTBM Series Full Port, Split Body, Side Entry Ball Valves This is an illustrated cross-section of a typical KITZ split body floating type full port ball valve to exhibit the basic design concept. The actual design of a valve may be slightly different from this illustration, depending on its size and pressure class. Bubble-tight sealing performance with HYPATITE PTFE ball seats HYPATITE PTFE ball seats, standard stem seals of KITZ ball valves, are made of denatured PTFE, a molecularly reinforced PTFE/PFA copolymer, and specifically engineered for high bi-directional sealing performance and prolonged service life of valves. Its resistance to high or low temperature, creep or compression, abrasion and corrosion is all outstanding. As an option, KITZ SWELLESS ball seats principally made of PFA are recommended specifically for monomer service. This epoch-making new seat maximizes resistance to the permeation of monomer into its molecular structure (generally known as a swelling problem) which causes seat deformation and seriously affects shut-off function of valves in styrene and butadiene monomer service. 1 Integral actuator mounting pad Low emission stem packing Stem bearing Thrust washer Metal-to-metal firesafe contact HYPATITE PTFE ball seat with cavity pressure relief provision Body cap 4 KITZ 15SCTB Stem head (Double D design parallel to flow passage) Locking hole Antistatic device Blowout-proof stem collar Precision machined ball Body Low emission body seal gasket Metal-to-metal firesafe contact Simplified actuator mounting For 15/3 SCTA/UTAM Series ball valves, ISO 5211 actuator mounting pad is integrally provided for uniformly simplified mounting of any actuators provided with valve mounting flanges designed to ISO 5211 dimensional requirement. 15/3 SCTB/UTBM Series ball valves are provided with KITZ standard integral actuator mounting pad. Easy maintenance Split body design for KITZ 15/3 SCTB/UTBM Series provides the convenience of very easy maintenance critically required for process plants. Body inserts of uni-body, end entry design for KITZ 15/3 SCTA/UTAM Series are threaded into the valve body with provision of unthreading for valve disassembly in case of maintenance operation.

13 KITZ 15/3 SCTA/UTAM Series Reduced Port, Uni-body, End Entry Ball Valves This is an illustrated cross-section of a typical KITZ uni-body floating type reduced port ball valve to exhibit the basic design concept. The actual design of a valve may be slightly different from this illustration, depending on its size and pressure class. Stopper pin Low emission stem packing Antistatic device Thrust washer Blowout-proof stem collar HYPATITE PTFE ball seat with cavity pressure relief provision Metal-to-metal firesafe contact Extensive safety considerations KITZ ball valves are designed with extensive safety considerations for users. Blow-out proof stems, provision of locking devices and prevention of misalignment of lever handles provide safe handling in the field and trouble-free operation in the plant. Antistatic devices, firesafe seal design and cavity pressure relief features all assure the economic benefits of smooth, steady plant operation. KITZ advancements in low emission design features contribute to the global battle against fugitive emissions while greatly reducing costs caused by product loss. 4 KITZ 15SCTA Standard material configuration for sour service Key lock plate Stem head (Double D design parallel to flow passage) Gland nut Belleville spring washer for live loading Integral ISO 5211 Actuator mounting pad Stem bearing Emission-free PTFE primary gasket Flexible graphite secondary gasket Precision machined ball Body insert Body KITZ Class 15/3 steel ball valves are all made of component materials specially heat-treated and handnesscontrolled to conform with NACE MR13 requirements, and proved suitable for servicing sour gases or other hydrogen sulfide bearing hydrocarbons. KITZ Class 6 and higher stainless steel ball valves are also suitable for sour service. However, NACE materials are optional for KITZ Class 6 and higher carbon steel ball valves. 11

14 Seven Safety Considerations for KITZ 15/3 SCTB/UTBM and 15/3 SCTA/UTAM Series Ball Valves 1. Double D stem head design provides mounting of the lever handle always in parallel to the flow passage. Misaligment of the handle is thus prevented. (Fig. 1) 2. The lower end of the stem is designed with an integral collar to be blowout-proof. It also functions as the backseat for assured stem sealing. (Fig. 2) 3. An antistatic feature is provided to ensure electrical continuity between ball, stem, and body. (Fig. 2) 4. Facility for mounting a locking device for prevention of accidental valve operation is provided. 5. Plant fires are a serious concern for soft-seated ball valves because of possible fluid leakage and consequent increase of the fire magnitude caused by deterioration of resilient sealing materials. KITZ ball valves are engineered for firesafety and successfully fire tested to minimize both external and internal fluid leakage after plant fires. They have post-fire metal-to-metal contact of all sealing areas such as: Contact between ball and valve shell (Fig. 3 & 4) Contact between stem and valve shell (Fig. 5 & 6) Valve shell coupling flanges of split body design (Fig. 7 & 8) Contact between valve body and insert of unibody design (Fig. 9) The problem of external fluid leakage is more serious than internal leakage through the valve bore because of the fear of fueling the fire. To prevent this, KITZ ball valves may be ordered with flexible graphite packing and gaskets, which are extremely heat resistant, and not affected by the fire. For details, refer to Page 5 and The surface of stem and stuffing box, and interface clearance of stem-to-gland, stem-to-body and gland-to-stuffing box are precision controlled on machining and assembly for low emission service. For uni-body, end-entry design, a Belleville spring washer is employed for live loading on gland packing rings, to minimize need of gland retightening for low emission service. 7. A provision of cavity pressure relief is incorporated into precision engineered KITZ HYPATITE PTFE ball seats for the ultimate safety. Refer to Page13 for details. Stem Top of stem Gasket Flow direction Fig. 1 Seat Handle Fig. 3 (Before fire) Fig. 5 (Before fire) Ball Fig. 7 (Before fire) Body Packing Bearing Washer Gasket Flexible graphite gasket for superfiresafe provision Emission-free PTFE primary gasket Antistatic devices Metal-to-metal contact Stem Ball Fig. 2 Fig. 4 (After fire) Fig. 6 (After fire) Ball Stem Collar Fig. 8 (After fire) Body Metal-to-metal contact Body Metal-to-metal contact As the primary body seal, emission free PTFE gasket is always provided. Flexible graphite gasket may be additionally employed as the secondary body seal for superfiresafe provision. Fig. 9 (Uni-body insert) 12

15 Integral Actuator Mounting Pads KITZ split body design ball valves are furnished with integral pads for provision of actuator mounting, which may be drilled to customers requirement. This is standard for 15/3 SCTB Series (carbon steel valves), or option for 15/3 UTBM Series (stainless steel valves). KITZ uni-body end-entry design ball valves are always furnished with integral actuator mounting pad designed and factory-drilled according to ISO 5211 specification. Note: Customers are requested to prepare mounting brackets and connectors for the actuators chosen for their valve automation. Actuators can be mounted on KITZ ball valves without disassembly of valve glands. HYPATITE PTFE Ball Seats Split body design Actuator mounting pad Actuator mounting pad Uni-body design KITZ ball valves are furnished, as the manufacturer s groove standard, with HYPATITE PTFE ball seats made of denatured PTFE, a molecularly reinforced PTFE/PFA copolymer, and specially engineered for high notch performance which include: notch Wide service temperature range of 29C (2F) through 26C (5F). This is for standard valve design and materials used for medium to high temperature services. The lower temperature range can be extended down to 196C (321F) by means of extended bonnet design and special low temperature service materials. High chemical resistance is comparable to virgin Front Rear PTFE. A typical HYPATITE PTFE seat used for 4" KITZ 15SCTB ball valves. Monomer permeability is lower than other PTFE materials. Resistance against compression and creeping (cold flow) is higher than other PTFE materials to guarantee long life cycle. Optional Ball Seats Specific gravity and friction coefficient are equal to those of virgin PTFE for smooth valve operation. Purity of processed products is guaranteed as highly as virgin PTFE. Resiliency is as high as other PTFE materials for bubble-tight sealing performance. In addition to the standard HYPATITE PTFE ball seats, SWELLESS seats are recommended for monomer service. Also virgin PTFE and carbon filled PTFE seats are optionally available for versatility in service applications. Refer to Page 14 for details. Refer to Page 48 for more technical deta. Cavity Pressure Relief Some line fluid is usually left trapped inside the ball-body cavity. This fluid can expand under the influence of high ambient or line temperature. An abnormal increase of such cavity pressure may sometimes damage the valve seats or balls, unless the valve has an adequate cavity pressure relief provision. Trunnion mounted ball valves generally provide perfect protection from this problem. Refer to KITZ Cat. No. E-22 for technical details of KITZ trunnion mounted ball valves. In case of floating ball valves, however, their rather simple seating principle requires some special protection from excessive cavity pressure rise when highly volatile liquid in service is subject to frequent and large temperature variation, while the valve is not frequently operated. KITZ 15/3 SCTB/UTBM and 15/3 SCTA/UTAM Series ball valves offer self-relieving of excessive cavity pressure as a standard feature engineered in HYPATITE PTFE ball seats. Other general solutions for floating ball valves include employment of automatic pressure relief valves or drilling pressure equalization holes on the ball. It the requirement of automatic cavity pressure relief is as critical as in chlorine service, be sure to contact KITZ Corporation or its distributors for technical advice. 13

16 KITZ Ball Seat Materials The following seat materials are available. Virgin PTFE HYPATITE PTFE Carbon filled PTFE FILLTITE Graphite Metal PEEK SWELLESS Glass fiber filled PTFE with MoS2 Nylon with MoS2 FILLTITE is a specially reinforced ball seat, made by using more carbon based fillers into PTFE than conventional carbon filled PTFE, which greatly improves heat and abrasion resistance. The material shows excellent operability, durability, chemical resistance and sealing performance at a high temperature of 3. In addition, the ball seat is replaceable with the most of our conventional ball seats, so it also has the cost advantage. 14

17 Class 15/3 Carbon Steel Ball Valves Full port, Split body, Side entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard 15SCTB Dimensions of 15SCTB Dimensions of 3SCTB Gear Operation Page 6 for Pressure-Temperature Ratings Page 39 for Construction and Materials Page 36 for Dimension of Actuator Mounting Pad 3SCTB 1 /2 8 : Lever operation 6 8 : Optional gear operation 1 : Standard gear operation Shell (Hydrostatic): 3.1MPa (45psi) Options Flexible graphite packing and gasket (See Page 12) Ball and stem to CF8M (316) 1 /2 8 : Lever operation 6 8 : Optional gear operation Shell (Hydrostatic): 7.76MPa (1125psi) Options Flexible graphite packing and gasket (See Page 12) Ball and stem to CF8M (316) Worm gear operators may be mounted on KITZ ball valves at your option for the smoothest valve operation. Electric or pneumatic actuators are also optionally available. Contact KITZ distributors for appropriate choice and sizing of valve actuators. 15

18 16 Class 15/3 Carbon Steel Ball Valves Regular port, Uni-body, End entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to ISO SCTA Dimensions of 15SCTA Dimensions of 3SCTA Gear Operation Page 6 for Pressure-Temperature Ratings Page 4 for Construction and Materials Page 37 and 38 for Dimension of Actuator Mounting Pad 3SCTA 1 /2 1 : Lever operation 6 1 : Optional gear operation Shell (Hydrostatic): 3.1MPa (45psi) Options Flexible graphite packing and gasket (See Page 12) Ball and stem to CF8M (316) 1 /2 1 : Lever operation 6 1 : Optional gear operation Shell (Hydrostatic): 7.76MPa (1125psi) Options Flexible graphite packing and gasket (See Page 12) Ball and stem to CF8M (316) Worm gear operators may be mounted on KITZ ball valves at your option for the smoothest valve operation. Electric or pneumatic actuators are also optionally available. Contact KITZ distributors for appropriate choice and sizing of valve actuators.

19 Class 6/15 Carbon Steel Ball Valves Full port, Split body, Side entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head Ball seats: Reinforced PTFE with MoS2 for Class 6 Nylon with MoS2 for Class 15 6SCTB Dimensions of 6SCTB Dimensions of 15SCTB Page 7 for Pressure-Temperature Ratings Page 43 and 45 for Construction and Materials 15SCTB Lever operation Shell (Hydrostatic): 15.34MPa (2225psi) Options Flexible graphite packing and flexible graphite spiral wound gasket (See Page 12 and 43) Ball and stem to 316 Lever operation Shell (Hydrostatic): 38.43MPa (5575psi) Options Flexible graphite packing and flexible graphite spiral wound gasket (See Page 12 and 45) Ball and stem to

20 Class 15/3 Stainless Steel Ball Valves Full port, Split body, Side entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad (Option) to KITZ standard 15UTBM Dimensions of 15UTBM Dimensions of 3UTBM Gear Operation Page 6 for Pressure-Temperature Ratings Page 41 for Construction and Materials Page 36 for Dimension of Actuator Mounting Pad 3UTBM 1 /2 8 : Lever operation 5 8 : Optional gear operation 1 : Standard gear operation Shell (Hydrostatic): 2.93MPa (425psi) Option Flexible graphite packing and gasket (See Page 12) 1 /2 8 : Lever operation 6 8 : Optional gear operation Shell (Hydrostatic): 7.58MPa (11psi) Option Flexible graphite packing and gasket (See Page 12) Worm gear operators may be mounted on KITZ ball valves at your option for the smoothest valve operation. Electric or pneumatic actuators are also optionally available. Contact KITZ distributors for appropriate choice and sizing of valve actuators. 18

21 Class 15/3 Stainless Steel Ball Valves Regular port, Uni-body, End entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to ISO UTAM Dimensions of 15UTAM Dimensions of 3UTAM Gear Operation Page 6 for Pressure-Temperature Ratings Page 42 for Construction and Materials Page 37 and 38 for Dimension of Actuator Mounting Pad 3UTAM 1 /2 1 : Lever operation 6 1 : Optional gear operation Shell (Hydrostatic): 2.93MPa (425psi) Option Flexible graphite packing and gasket (See Page 12) 1 /2 1 : Lever operation 6 1 : Optional gear operation Shell (Hydrostatic): 7.58MPa (11psi) Option Flexible graphite packing and gasket (See Page 12) Worm gear operators may be mounted on KITZ ball valves at your option for the smoothest valve operation. Electric or pneumatic actuators are also optionally available. Contact KITZ distributors for appropriate choice and sizing of valve actuators. 19

22 Class 6/15 Stainless Steel Ball Valves Full port, Split body, Side entry design Features Antistatic device Blowout-proof stem Fire test certification Double D stem head Ball seats: Reinforced PTFE with MoS2 for Class 6 Nylon with MoS2 for Class 15 6UTBM Dimensions of 6UTBM Dimensions of 15UTBM Page 7 for Pressure-Temperature Ratings Page 44 and 46 for Construction and Materials 15UTBM Lever operation Shell (Hydrostatic): 14.99MPa (2175psi) Option Flexible graphite packing and flexible graphite spiral wound gasket (See Page 12 and 44) Lever operation Shell (Hydrostatic): 37.23MPa (54psi) Option Flexible graphite packing and flexible graphite spiral wound gasket (See Page 12 and 46) 2

23 Class 15 Low Temperature Service Ball Valves Features Long stem extension for assured stem seal and freezing prevention. Bolted joint of stem extension with valve body. No welding joint. Protection of stem alignment by means of two bearings built on top and bottom of stem extension. Lowest working temperature: 8 Full Port 15UTBX Refer to Page 41 for the basic construction and materials. Dimensions of 15UTBX Dimensions of G-15UTBX 1 /2 8 : Lever operation 5 8 : Optional gear operation 1 : Standard gear operation Shell (Hydrostatic): 2.93MPa (425psi) G-15UTBX Standard materials 21

24 Class 3 Low Temperature Service Ball Valves Features Long stem extension for assured stem seal and freezing prevention. Bolted joint of stem extension with valve body. No welding joint. Protection of stem alignment by means of two bearings built on top and bottom of stem extension. Lowest working temperature: 8 Full Port 3UTBX Refer to Page 41 for the basic construction and materials. Dimensions of 3UTBX Dimensions of G-3UTBX 1 /2 8 : Lever operation 6 8 : Optional gear operation Shell (Hydrostatic): 7.58MPa (11psi) G-3UTBX Standard materials 22

25 Class 15 Stainless Steel 3-way Ball Valves Full port, 2-seated or 4-seated, Split body, Side entry design Features Used for diverting or mixing process media One 3-way valve can replace several other valves plus the associated piping pieces Antistatic device Blowout-proof stem Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard 15UTB2LM (L-port, 2-seated) 15UTB2TM (T-port, 2-seated) L-port Form 1 C Form 2 Form 1 C Form 2 C Form 3 Dimensions of 15UTB2LM/2TM Regular port Dimensions of 15UTB4LAM/4TAM Regular port A A A A A C T-port C B B B B B Page 7 for Pressure-Temperature Ratings 15UTB4LAM (L-port, 4-seated) 15UTB4TAM (T-port, 4-seated) A A A A A A L-port C Form 1 C Form 2 T-port C Form 1 C Form 2 C Form 3 C Form : Lever operation 6 : Optional gear operation Shell (Hydrostatic): 2.93MPa (425psi) Note JIS 1K type is also available. 1 /2 8 : Lever operation 5 8 : Optional gear operation Shell (Hydrostatic): 2.93MPa (425psi) Note JIS 1K type is also available. B B B B B B 23

26 Class 15 Stainless Steel Pocketless Ball Valves Full port, Split body, Side entry design Features Unique filled cavity provides excellent resistance to media build up and/or stagnation between seats Antistatic device Blowout-proof stem Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard Dimensions 24 15UTBPM Class 15 Stainless Steel Jacketed Ball Valves Full port Features Fully jacketed to maintain media temperature Antistatic device Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard Dimensions 15UTBJM Page 6 for Pressure-Temperature Ratings 1 /2 8 : Lever operation 5 8 : Optional gear operation Shell (Hydrostatic): 2.93MPa (425psi) Regular port Page 6 for Pressure-Temperature Ratings 1 /2 6 : Lever operation 6 : Optional gear operation Shell (Hydrostatic): 2.93MPa (425psi) Seat (Pneumatic):.55MPa (8psi) Jacket (Hydrostatic): 2.7MPa (3psi) Note Maximum allowable pressure is 1.37MPa (199psi) at 26 (5). JIS 1K type is also available.

27 Class 15 Stainless Steel Tank Ball Valves Full port, Split body, Side entry design Features Direct mounting to tank bottom Churning media evenly Antistatic device Blowout-proof stem Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard Dimensions Class 15 Stainless Steel PFA Lined Ball Valves Full port, Split body, Side entry design Features Highly corrosion-resistant PFA lining Fine lining without a pinhole Highly heat-resistant PFA No additives or paints are included Double D stem head High performance HYPATITE PTFE ball seats Actuator mounting pad to KITZ standard Dimensions 15UTBTM 1UTBLN Page 6 for Pressure-Temperature Ratings 1 6 : Lever operation Shell (Hydrostatic): 2.93MPa (425psi) Jacket (Hydrostatic): 2.7MPa (3psi) Note Maximum allowable temperature is 2 (392). Class 3 and JIS 1K/2K types are also available. Page 7 for Pressure-Temperature Ratings 1 /2 4 : Lever operation Shell (Hydrostatic): 2.93MPa (425psi) Note JIS 1K type is also available. 25

28 Type 6/1 Carbon Steel Ball Valves Reduced port, Uni-body design, Threaded ends Features Blowout-proof stem Choice of threaded ends: Rc threads to BS 21 (Fig. SCTK) NPT threads to ASME B1.2.1 (Fig. AKSCTK) Dimensions SCTK Type 15/2 Carbon Steel Ball Valves Reduced port, Uni-body design, Firesafe type, Threaded ends Features Blowout-proof stem API 67 firesafe type Choice of threaded ends: Rc threads to BS 21 (Fig. SCTKZM-FS) NPT threads to ASME B1.2.1 (Fig. AKSCTKZM-FS) Dimensions SCTKZM-FS Page 8 for Pressure-Temperature Ratings Standard materials 1 34 for 3 /4 & larger 2 34 for 1 /2 & larger 3 HYPATITE PTFE for Type 1 End-to-end dimensions: KITZ standard Lever operation T-type handle as option ( 3 /4 & larger only) Shell (Hydrostatic): Type 6: 6.2MPa (9psi) Type 1: 1.34MPa (15psi) Page 9 for Pressure-Temperature Ratings Standard materials Non-firesafe PTFE packing is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) 26

29 Type 15/2 Carbon Steel Ball Valves Regular port, Split body design, Threaded ends Features Blowout-proof stem API 67 firesafe type as option NPT threaded ends to ASME B1.2.1 Dimensions Dimensions AKSCTHZM Type 15/2 Carbon Steel Ball Valves Regular port, Welded body design, Threaded ends Features Blowout-proof stem API 67 firesafe type as option NPT threaded ends to ASME B1.2.1 AKSCTWZM Page 9 for Pressure-Temperature Ratings Standard materials API 67 firesafe flexible graphite is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) Page 9 for Pressure-Temperature Ratings Standard materials API 67 firesafe flexible graphite is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) 27

30 Class 8 and Type 3 Carbon Steel Ball Valves Regular port, Welded body design, Threaded ends Features Antistatic device Blowout-proof stem Fire test certification Choice of threaded ends: Rc threads to BS 21 (Fig. 8/3 SCTK) NPT threads to ASME B1.2.1 (Fig. AK8/3 SCTK) Note 1. Class 8 ball valves are designed to BS Type 3 ball valves are designed to KITZ standard for servicing water, oil and gaseous fluid under the maximum working pressure of 3psi. Dimensions Class 8 and Type 3 Carbon Steel Ball Valves Regular port, Split body design, Socket welding ends Features Antistatic device Blowout-proof stem Fire test certification Socket welding ends to ASME B16.11 Note 1. Class 8 ball valves are designed to BS Type 3 ball valves are designed to KITZ standard for servicing water, oil and gaseous fluid under the maximum working pressure of 3psi. 8/3 SCTK AW8/3 SCTK Page 8 for Pressure-Temperature Ratings Standard materials Polychloro-Trifluoro-Ethylene. Lever operation Shell (Hydrostatic): Class 8: 8.27MPa (12psi) Type 3: 31.3MPa (45psi) Option Flexible graphite packing and gasket. Page 8 for Pressure-Temperature Ratings Standard materials Polychloro-Trifluoro-Ethylene. End-to-end dimensions: KITZ standard Dimensions Lever operation Shell (Hydrostatic): Class 8: 8.27MPa (12psi) Type 3: 31.3MPa (45psi) Option Flexible graphite packing and gasket. 28

31 Type 1 Carbon Steel Ball Valves Full port, Three-piece body design, Threaded or socket welding ends Features Blowout-proof stem Swing-away body for maintenance ease Choice of threaded ends: Rc threads to BS 21 (Fig. SC3TZF) NPT threads to ASME B1.2.1 (Fig. AKSC3TZF) Socket welding ends to BS 5351 (Fig. SWSC3TZF) Socket welding ends to ASME B16.11 (Fig. AWSC3TZF) Dimensions Dimensions SC3TZF Type 1 Carbon Steel Ball Valves Regular port, Three-piece body design, Threaded or socket welding ends Features Blowout-proof stem Swing-away body for maintenance ease Choice of threaded ends: Rc threads to BS 21 (Fig. SC3TZ) NPT threads to ASME B1.2.1 (Fig. AKSC3TZ) Socket welding ends to BS 5351 (Fig. SWSC3TZ) Socket welding ends to ASME B16.11 (Fig. AWSC3TZ) SC3TZ Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Oval handle as option Shell (Hydrostatic): 1.34MPa (15psi) Note Use SC3TZ for size 2. Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Oval handle as option Shell (Hydrostatic): 1.34MPa (15psi) Note Use SC3TZF for sizes 1 /4 & 3 /8. 29

32 Type 6/1 Stainless Steel Ball Valves Reduced port, Uni-body design, Threaded ends Features Blowout-proof stem Choice of threaded ends: Rc threads to BS 21 (Fig. UTKM) NPT threads to ASME B1.2.1 (Fig. AKUTKM) Dimensions UTKM Type 8 Stainless Steel Ball Valves Regular port, Split body design, Threaded ends Features Blowout-proof stem Choice of threaded ends: Rc threads to BS 21 (Fig. UTHM) NPT threads to ASME B1.2.1 (Fig. AKUTHM) Dimensions UTHM Page 8 for Pressure-Temperature Ratings Standard materials HYPATITE PTFE for Type 1 End-to-end dimensions: KITZ standard Lever operation T-type handle as option Shell (Hydrostatic): Type 6: 6.2MPa (9psi) Type 1: 1.34MPa (15psi) Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Shell (Hydrostatic): 8.27MPa (12psi) 3

33 Type 1 Stainless Steel Ball Valves Full port, Split body design, Threaded ends Features Blowout-proof stem Choice of threaded ends: Rc threads to BS 21 (Fig. UTFM) NPT threads to ASME B1.2.1 (Fig. AKUTFM) Dimensions UTFM Type 15/2 Stainless Steel Ball Valves Features Blowout-proof stem API 67 firesafe Choice of threaded ends: Rc threads to BS 21 (Fig. UTKZM-FS) NPT threads to ASME B1.2.1 (Fig. AKUTKZM-FS) Reduced port, Uni-body design, Firesafe type, Threaded ends Dimensions UTKZM-FS Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Shell (Hydrostatic): 1.34MPa (15psi) Page 9 for Pressure-Temperature Ratings Standard materials Non-firesafe PTFE packing is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) 31

34 Type 15/2 Stainless Steel Ball Valves Regular port, Split body design, Threaded ends Features Blowout-proof stem API 67 firesafe type as option NPT threads to ASME B1.2.1 Dimensions AKUTHZM Type 15/2 Carbon Steel Ball Valves Regular port, Welded body design, Threaded ends Features Blowout-proof stem API 67 firesafe type as option NPT threads to ASME B1.2.1 Dimensions AKUTWZM Page 9 for Pressure-Temperature Ratings Standard materials API 67 firesafe flexible graphite is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) Page 9 for Pressure-Temperature Ratings Standard materials API 67 firesafe flexible graphite is optionally available. End-to-end dimensions: KITZ standard Lever operation with latch lock Oval handle as option Shell (Hydrostatic): Type 15: 15.51MPa (225psi) Type 2: 2.68MPa (3psi) 32

35 Type 1 Stainless Steel Ball Valves Full port, 3-pce body design, Threaded or socket welding ends Features Blowout-proof stem Swing-away body for maintenance ease Choice of threaded ends: Rc threads to BS 21 (Fig. U3TZFM) NPT threads to ASME B1.2.1 (Fig. AKU3TZFM) Socket welding ends to BS 5351 (Fig. SWU3TZFM) Socket welding ends to ASME B16.11 (Fig. AWU3TZFM) Dimensions Dimensions U3TZFM Type 1 Stainless Steel Ball Valves Regular port, 3-pce body design, Threaded or socket welding ends Features Blowout-proof stem Swing-away body for maintenance ease Choice of threaded ends: Rc threads to BS 21 (Fig. U3TZM) NPT threads to ASME B1.2.1 (Fig. AKU3TZM) Socket welding ends to BS 5351 (Fig. SWU3TZM) Socket welding ends to ASME B16.11 (Fig. AWU3TZM) U3TZM Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Oval handle as option Shell (Hydrostatic): 1.34MPa (15psi) Note Use U3TZM for size 2. Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Oval handle as option Shell (Hydrostatic): 1.34MPa (15psi) Note Use U3TZFM for sizes 1 /4 & 3 /8. 33

36 Type 8 Stainless Steel 3-way Ball Valves Regular port, 4-seated, Split body, Threaded ends L-port and T-port Rc threads to BS 21 A A A C Form 1 C Form 1 C L-port B B B Dimensions Dimensions Form 2 Form 2 Form 3 Form 4 A T-port A A UTH4LM (L-port) UTH4TM (T-port) This drawing shows L-port design. Class 15 Stainless Steel Ball Valves Full port, Split body, Side entry design, Threaded ends Choice of threaded ends: Rc threads to BS 21 (Fig. 15UTM) NPT threads to ASME B1.2.1 (Fig. AK15UTM) C C C B B B AK15UTM Page 8 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Lever operation Shell (Hydrostatic): 8.27MPa (12psi) Page 9 for Pressure-Temperature Ratings Standard materials End-to-end dimensions: KITZ standard Wall thickness: ASME B16.34 Class 15 Lever operation Shell (Hydrostatic): 2.93MPa (425psi) Note JIS 1K type is also available. 34

37 35

38 Dimensions of KITZ Standard Actuator Mounting Pad for Class 15 / 3 Full Port, Split Body, Side Entry Design Ball Valves H Dimensions Nominal size (in.) H1.1.2 D.5 t h h1 h2.1.2 S D1 P P1 P2 A L1 (1) (2) (3) (4) E1 E2 E3 T1 T2 d1 M thread d2 UNC thread 36

39 Dimensions of ISO 5211 Actuator Mounting Pad for Class 15 / 3 Regular Port, Uni-body, End Entry Design Ball Valves Dimensions Class Nominal size (in.).2.6 A.1.2 B.1.2 E E1.2 F G H K L L1 M thread d UNC thread M1 T T1 T2 ISO 5211 flange type UNC threads optionally available. 37

40 Dimensions of ISO 5211 Actuator Mounting Pad for Class 15 / 3 Regular Port, Uni-body, End Entry Design Ball Valves Dimensions Class Nominal size (in.).2.7 A.1.2 B.1.2 E E1.2 F G H K L L1 M thread d UNC thread T T1 T2 ISO 5211 flange type UNC threads optionally available. 38

41 1 A35 or A352 low-temperature service materials are optionally available. 2 CF8M or Type 316 is optionally available for balls & stems. 3 Bar type handle is used for 6and 8. Worm gear operators are used for 1. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials Standard material configuration can be applied to sour service. Illustration shows Size 4 design. 39

42 1 A352 low-temperature service materials are optionally available. 2 A479 / A479M Type 34 for 3 lager. 3 Type 316 is optionally available. 4 A479 / A479M Type 34 for 3and 4. 5 Bar type handles are used for 6and larger. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials Standard material configuration can be applied to sour service. Illustration shows Size 4 design. 4

43 1 Other stainless steels are available as options. 2 Packing washers are used only for 1 smaller. 3 Virgin PTFE for 1. 4 Bar type handles are used for 6and 8. Worm gear operations are used for 1. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials Standard material configuration can be applied to sour service. Illustration shows Size 4 design. 41

44 1 A479 / A479M Type 34 for 3 lager. 2 A479 / A479M Type 316 for 3 lager. 3 A479 / A479M Type 34 for 3and 4. 4 Bar type handles are used for 6and larger. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials Standard material configuration can be applied to sour service. Illustration shows Size 4 design. 42

45 1 A35 low-temperature service materials are optionally available. 2 CF8M or Type 316 and other stainless steels are optionally available for ball & stem. 3 These parts are used only for super-firesafe provision. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials An optional material configuration is available for sour service. Illustration shows Size 4 design. 43

46 Construction and Materials 1 This parts are used only for super-firesafe provision. 2 Other stainless steel are optionally available. All part numbers are corresponding with those shown in valve assembly drawings. Refer to the illustration on Page 43. Standard material configuration can be applied to sour service. 44

47 1 A352 low-temperature service materials are optionally available. 2 CF8M or Type 316 is optionally available for ball & stem. 3 These parts are used only for super-firesafe provision. All part numbers are corresponding with those shown in valve assembly drawings. Construction and Materials An optional material configuration is available for sour service. 45

48 Construction and Materials 1 These parts are used only for super-firesafe provision. 2 Other stainless steel are optionally available. All part numbers are corresponding with those shown in valve assembly drawings. Refer to the illustration on Page 45. Standard material configuration can be applied to sour service. 46

49 Technical Information Technical Features of KITZ HYPATITE PTFE and SWELLESS Ball Seats Fire Test Standards General Precautions Flow Characteristics Steel Pipe Flanges 47

50 Technical Information Technical Features of KITZ HYPATITE PTFE and SWELLESS Ball Seats KITZ HYPATITE PTFE ball seats are made of denatured PTFE, a molecularly reinforced PTFE/PFA copolymer, and specifically engineered for high sealing performance and prolonged service life of valves, in place of conventional glass-filled PTFE seats. The unique performance features are compared with those of conventional glass-filled or virgin PTFE ball seats below. With the introduction of HYPATITE PTFE ball seats, glass-filled PTFE version is not anymore available from KITZ Corporation, while carbon-filled or virgin PTFE seats remain available for special orders. As a newly developed option, KITZ SWELLESS ball seats principally made of PFA are recommended specifically for monomer service. This epoch-making new seat maximizes resistance to the permeation of monomer into its molecular structure (generally known as a swelling problem) which causes seat deformation and seriously affects shut-off function of valves in styrene and butadiene monomer service. Our HYPATITE PTFE ball seats also outperform conventional PTFE seats with its monomer resistance feature. However, it has been verified both by laboratory and on-site tests that SWELLESS seats perform much better than HYPATITE PTFE seats, as they indeed deserve the name of SWELLESS, their registered tradename Besides, PFA resin, the principal material, assures the known features of florine resin such as excellent resistance characteristics to high or low temperatures, creep or compression, abrasion and general chemicals. Table 1 and Figure 1, 2 and 3 here explain these technical features of HYPATITE PTFE and SWELLESS ball seats compared with conventional seat materials. Table 1. Compared Technical Features of KITZ Ball Seats Refer to the above body text for monomer service characteristics of SWELLESS seats. 48

51 Technical Information Fig. 1 KITZ Ball Valve Seats Compared Lab Test Results against Gaseous Butadiene Monomer vs. Styrene Monomer Fig. 2 KITZ Ball Valve Seats Compared Results of Mechanical Load Tests I Total volume of distortion Mass Variation (%) (%) SWELLESS HYPATITE PTFE PFA PTFE Test conditions Exposed to gaseous butadiene for 12 hours 119 to 122 psig (.82 to.84 MPa) 14 F to 176 F (6 C to 8 C) Test conditions () Temperature PTFE HYPATITE PTFE PFA SWELLESS Fig. 3 KITZ Ball Valve Seats Compared Results of Mechanical Load Tests II Test conditions SWELLESS Permanent distortion These data show results of some of the tests carried out at our laboratory under the specific test conditions introduced here. Variation in the kind of test madia, the phase of test media (gaseous or liquid), preparation of test specimen and test conditions such as pressure, temperature and duration, may cause the test results quantitatively different from these data, but general monomer resistance levels of the seats introduced here are comparatively as exhibited in these test data. 49 Mass Variation (%) SWELLESS HYPATITE PTFE PFA PTFE Test conditions Exposed to gaseous styrene for 24 hours 2.9 to 5.8 psig (.2 to.4 MPa) 14 F to 176 F (6 C to 8 C) 5 HYPATITE PTFE PFA HYPATITE PTFE PFA SWELLESS Total distortion PTFE PTFE SWELLESS HYPATITE PTFE PFA PTFE () Distortion within 24 hours

52 Technical Information Fire Test Standards January 1, Introduction Plant fires have become an increasingly serious concern due to the installation of a greater number of soft-seated ball and butterfly valves in place of conventional metal-seated gate and globe valves at many refineries and petrochemical plants. Extremely high temperatures usually result in decomposition or deterioration of resilient or non-metallic sealing components such as gland packing rings, O-rings and gaskets, causing leakage of line fluid which, in turn, increases the magnitude of plant fires. To minimize the extent of damage in such a mishap, soft-seated valves are expected to have the provision for secondary metal-to-metal sealing functions to minimize external and internal (through-the-bore) leakages as well as the provision for undisturbed valve operation during or after the fire enabling emergency shut-off or release of line fluid. Soft-seated valves may be manufactured to meet such critical fire safety requirements, if designed adequately, machined and assembled correctly, and equipped with proper sealing components. Valves designed and manufactured in such a way may be called firesafe valves. Manufacturers claims of fire safety, however, remain subjective. To verify the firesafe performance capability, the valve should be subjected to simulated plant fire conditions. API and BSI have developed technical specifications for such destructive tests, which are generally known as fire test standard. Fire test are destructive and cost a lot to carry out due to high test expenses and bills for a third party s certification, let alone the cost of destroyed samples. Such high costs eventually prohibit repetition of fire test. To minimize the frequency of fire tests, all existing fire test standards allow a certain range of sizes and pressure classes be qualified and certified without actual test being carried out, given that valves are designed the same and their non-metallic sealing materials are considered same as the actually tested valves. 2. History BS 6755, Part 2, 1987 (* 1 ) was issued to introduce, in a different form of presentation, the technical contents of API 6FA, 1985 (* 2 ) and API 67, 1985 (* 3 ), with an intention of replacing the requirements of BS 5146, Part 1, 1974, Appendix A.1 (* 4 ). Until this new British Standards was issued, technical discrepancies existing between British Standards and API Standards had unnecessarily incurred high costs to valve manufacturers who desired to get their products qualified and certified to these standards, and caused confusion to contractors and end-users for evaluation of the products to be purchased. Even within the United States, valve manufacturers, contractors and end-users used to have similar kinds of difficulties caused by discrepant fire test requirements which had long existed between API Production Department (which is now responsible for API 6FA) and API Refining Department (which has been responsible for API 67). Following the virtual unification of fire test requirements made by API Production and Refining Departments in their latest 1985 issues. BSI finally launched a major program to adopt American Standards as their own, which shall eventually help realize a globally unfied fire test standard through ISO. 1 Testing of valves: Specification for fire type-testing requirements. 2 Specification for fire test for valves. (2nd edition was issued in 1994) 3 Fire test for soft-seated quarter-turn valves. (4th edition issued in 1993 has nullified the qualification made according to this 3rd edition, as of May 1, 1996.) 4 Inspection and test of valves: Specification for steel valves for the petroleum, petrochemical and allied industries: Fire safe testing of soft seated ball valves. 5