COST EFECTIVE FLOW MEASUREMENT FOR LIQUIDS AND GASES ORIFLO INTEGRATED ORIFICE FLOWMETERS GENERAL O series ORIFLO METER is a By-pass Orifice type flowmeter. Small sized variable flowmeter is installed onto measuring tube part in which an orifice plate for by-pass flow is integrated. Three different process connections,i.e., "SCREW", "FLANGE" and "WAFER", are available for Selection. An isolation valve is available between measuring tube and indicator for indicator maintenance work even during process operation. This eliminates the necessity of by-pass piping for maintenance purpose and saves total piping cost. In addition to standard material of STEEL version, Stainless steel and PVC versions to cover corrosive fluids are available. Alarm contacts are available as option. (O-78 series) FEATURES LOW COST / HIGH PERFORMANCE Thanks to unique orifice by-pass system, total instrumentation cost can be saved especially for medium and large sized piping measurement. COMPACT DESIGN Small sized indicator saves space in plants. EASY INSTALLATION "SCREW", "FLANGE" and "WAFER" are ready to meet field requirements. By-pass piping for maintenance purpose can be skipped by using isolation valve. FOR ALL FLOW DIRECTIONS BOTTOM TO TOP, TOP TO BOTTOM, LEFT TO RIGHT, RIGHT TO LEFT. ORIFLO is applicable for all possible flow directions. Change of such flow direction is possible in field even after installation. ALARM CONTACT Besides local flow rate indication, alarm contact (s) are available. ORIFLO can be used as FLOWSWITCH. EASY MAINTENANCE Simple design and limited number of parts saves maintenance work. HIGH ANTI CORROSIVE CAPABILITY VERSION Stainless steel and PVC versions are available for corrosive fluid application. MAIN APPLICATIONS Hot and cool water as well as air flow measurement at Air conditioning Medium and large line measurement at General process Cooling water lines Water treatment process Pure and Ultra pure water production facilities process Testing of Fire fighting pumps Testing of blowers Others CONTENTS P1 GENERAL FEATURES MAIN APPLICATIONS P2 OPERATION PRINCIPLE CONSTRUCTION P3 MATERIAL CONSTRUCTION MODEL CODE P4 STANDARD SPECIFICATION P~6 SCALE RANGE P7 NO SERIES STANDARDIZED VERSION P8~12 DIMENSIONS P13 O-19 SERIES DIAL INDICATOR TYPE P14 SUGGESTIONS INSTALLATION ACCESSORIES P1 ORDERING INFORMATION TG-F771-E SEP., 3
OPERATION PRINCIPLE As shown in the figure, differential pressure is produced across the Main orifice plate by flow velocity which corresponds to flow rate. A small sized flowmeter (Variable area flowmeter) is mounted onto this differential pressure production unit. By this arrangement, the flow rate through the flowmeter corresponds to the flow rate through the main piping. Thus, scale range for main piping can be engraved onto the small sized flowmeter and the flow rate through the main piping is indicated by the position of float of the flowmeter. Normally, an isolation valve is provided between the measuring tube and the indicator for the purpose of indicator maintenance with no interference of process operation. (This valve is for maintenance/ isolation purpose and not for flow control purpose.) A magnet piece is buried into the float for Alarm version which attracts reed switch for alarm contact output. The setting point of alarm is adjustable by shifting the location of reed switch. Main pipe Orifice plate By-pass return Return tube Valve Handle Tapered tube (Graduated) Float By-pass orifice Strainer Isolation valve Process piping By-pass piping CONSTRUCTION ORIFLO consists of : a. lndicator b. lsolation valve c. Main pipe The figure is an extended view of metallic material version. (It would differ in case of PVC version.) a. Indicator assembly b. Isolation valve c. Main pipe 2 TOKYO KEISO CO., LTD. TG-F771-E
MATERIAL CONSTRUCTION Different materials are available for measuring tube, isolation valve, indicator and sealings to cover various fluids as per the following table ; Screw connection Main pipe Flange connection Wafer connection Orifice plate Isolation valve body / shaft Indicator body Tapered tube Float Cover Part description Sealing For Iiquids For Gases Material Class 1 SCS14/FCD4 *1 SGP/SS4 SS4/SCS14 *6 SUS4 SCS14/SUS4 SCS14 Pyrex glass SUS316 Glass SUS4/ABS NBR FPM Material Class 2 Material Class 3 SCS14/SUS4 *2 SCS14/SUS316 *3 SUS4 SUS316 SUS4/SCS14 *6 SUS316/SCS14 *6 SUS4 SUS316 SCS14/SUS4 SCS14/SUS316 SCS14 SCS14 Pyrex glass Pyrex glass SUS316 SUS316 Glass Glass SUS4/ABS SUS4/ABS NBR NBR FPM FPM Material Class 4 PVC PVC PVC PVC HT.PVC/PP HT.PVC Pyrex glass * PVC *7 Glass *1: SCS14 for 1mm~ Abbriviation of material *2: SUS4 for ~1mm PP : Polypropylene *3: SUS316 for ~1mm NBR : Nitrile Butadiene Rubber *4: Clear PVC cover available on request. FPM : Fluoro rubber *: PVC (Max. Press..6MPa) and HT.PVC : High temp. PVC Acryl (Max. Press..4MPa, Max. Temp. 4 C) tapered tubes are also available. *6: SCS14 for, 4mm~1mm (JIS1K) *4 NBR FPM Material Class HT.PVC HT.PVC HT.PVC HT.PVC HT.PVC/PP HT.PVC Pyrex glass HT.PVC Glass *4 NBR FPM MODEL CODE FUNCTION *1 FLOW DIRECTION PROCESS CONNECTION ISOLATION VALVE *2 LINE SIZE MATERIAL CODE MODE CODE 18 78 68 1 6 7 8 S F W N C B 4 1 1 2 2 3 ~ 2 1 2 3 4 6 DESCRIPTION LOCAL INDICATION ONLY LOCAL INDICATION + ALARM CONTACT LOCAL INDICATION + OPITICAL ALARM UNIT (OLD MODEL O-76 ) BOTTOM TOP LEFT RIGHT RIGHT LEFT TOP BOTTOM SCREW CONNECTION (1 mm~1mm) FLANGE CONNECTION (1 mm~) WAFER CONNECTION (1 mm~) NOT PROVIDED PROVIDED INDICATOR SEPARATION VERSION 1mm mm ~ 4mm mm MATERIAL CLASS 1 (Steel) MATERIAL CLASS 2 (4SS) MATERIAL CLASS 3 (316SS) MATERIAL CLASS 4 (PVC) MATERIAL CLASS (HT.PVC) SPECIAL *1: O-19 Dial indication version available. Refer to page 13 for details. *2: Ball valves are provided for indicator separation version (O- 8 - B). Refet to page 11 for details. TG-F771-E TOKYO KEISO CO., LTD. 3
STANDARD SPECIFICATION Measuring fluid : Liquids (upto 3 mpa.s viscosity) Gases (Not suitable for opaque liquids, slurries and steam) Available sizes : Std. 1mm(3/8")~mm(12") Option 3mm(14")~mm(") Special Larger than above on request Process connection : Screw connection Std. JIS RC thread Opt. NPT thread Size availability 1mm(3/8")~1mm(4") (1mm~mm for PVC, HT.PVC versions) Flange connection Std. JIS1KFF, JIS1KRF Opt. ANSI 1#, JPI 1#, Others Size availability 1mm(3/8")~ Wafer connection Std. For JIS1K flanges Opt. For other flanges Size availability 1mm(3/8")~ Standard Differential pressure : Function Local indication Local indication + Alarm Indicator material Matellic material PVC, HT.PVC Matellic material PVC, HT.PVC DP (kpa) For liquids For gases Other special Differential pressure design available on request. Consult factory for details. Standard painting : Munsell 7.BG4/1. PVC part will not be painted. Alarm function : 1 or 2 point alarm can be additionally provided. Type of contact : Reed switch (SPST) Termination : M3. screw terminal Terminal connection : 1 1 1 Max. fluid temp. Material Metallic indicators PVC indicators HT.PVC indicators NBR seal FPM seal Stl. valve shaf Max. fluid temp. 1 C * 6 C 8 C 8 C 1 C 1 C * Max. Press : 1.MPa (1kg/cm2G).6MPa (6kg/cm2G) for PVC, HT.PVC versions Range ability : Std. 1: 2 Different range ability applicable for special design products. Indication accuracy : ±3% F.S. (High accuracy special calibration on request) 1 point alarm : 13 2 point alarm : 13, 23 REED SW TERMINAL (SELF RETENTIONING TYPE) Contact capacity : AC1VA (Max. voltage 12V, Max. current.2a) DC1W (Max. voltage 1V, Max. current.2a) Use RD-1 type Relay Driver if larger contact capacity is required. (Separete TECHNICAL GUIDANCE available on request) In case of lamp load, inductive load and electric motor load, the surge current may be induced. Provide the suitable protection such as CR, surge suppression, relays etc. Reset Span : Max. % F.S. 4 TOKYO KEISO CO., LTD. TG-F771-E
SCALE RANGE FOR LIQUID MEASUREMENT SIZE 1mm 3/8".14 ~. 1/2".18 ~ 1.1 mm 3/4". ~ 2.4 1".4 ~ 4. 1-1/4".7 ~ 6. 4mm 1-1/2" 1. ~ 9. mm 2" 1.8 ~ 1 2-1/2" 3. ~ 24 8mm 3" 4.2 ~ 32 1mm 4" 7 ~ 1 " 12 ~ 8 1mm 6" 16 ~ 1 mm 8" 3 ~ 2mm 1" ~ mm 12" 6 ~ 4 3mm 14" 8 ~ 4mm 16" 1 ~ 7 4mm 18" 16 ~ 1 mm " 3 ~ 1 *1: Range ability 1 : 2. *2: Range ability 1 : 2 *3: Range ability 1 : 2 (1 : 1. on request) FULL SCALE RANGE m 3 /h (Water, Density 1.g/cm 3, 1.mPa. s viscosity) DP 1kPa *1 DP 1kPa *2 DP kpa *3.1 ~.6. ~ 1.4.3 ~ 3.. ~..8 ~ 8. 1.2 ~ 11 2 ~ 18 4 ~ ~ 4 8 ~ 7 1 ~ 1 ~ 1 4 ~ 2 6 ~ 4 8 ~ 1 ~ 7 1 ~ 9 ~ 1 4 ~ 1. ~ 1..4 ~ 2.4.6 ~..9 ~ 8. 1. ~ 14 2. ~ 19 4 ~ 8 ~ 1 ~ 7 1 ~ 1 ~ 18 4 ~ 2 8 ~ 4 1 ~ 7 14 ~ 1 18 ~ 1 2 ~ 16 3 ~ 2 7 ~ 26 Consult factory for other scale ranges, if required. Above table is indicated based on water flow measurement. (Density 1.g/cm 3 Viscosity 1.mPa.s) When the fluid Specific gravity is other than 1., conduct conversion calculation by the following formula, and refer to the table : QW = Q γ o (γ f 1) (γ f γ o ) The calculation of figures in the above flow range table has been made on the premises that SGP, a JIS code name for a carbon steel pipe for ordinary piping, had been used for main pipes. ln case of pipes other than SGP, multiply the above liquid quantity by (the inner diameter of a pipe used the inner diameter of a SGP pipe) 2. QW : Water converted range Q : Flow range for actual liquid γ o : Density of actual Liquid : Density of float γ f Float material Stainless steel (Local indicator) Stainless steel (With alarm) PVC (All types) Density of float 7.9g/cm 3 7.3g/cm 3 3.g/cm 3 TG-F771-E TOKYO KEISO CO., LTD.
FOR GAS MEASUREMENT ORIFLO for gas flow measurment will be calibrated and graduated according to customers' individual operating condition such as density, pressure and temperature. Refer to ORDERING INFORMATION on page 1 and specify operating condition.the following table is shown by the air flow rate at C,1 atm. Conversion calculation is required in case actual operating condition differs from this. SIZE 1mm 3/8" 2.3 ~ 9. 1/2" 3.2 ~ mm 3/4" ~ 4 1" 8 ~ 8 1-1/4" 12 ~ 1 4mm 1-1/2" 16 ~ 18 mm 2" 2 ~ 29 2-1/2" 4 ~ 46 8mm 3" 6 ~ 6 1mm 4" 1 ~ 11 1 " 1 ~ 17 1mm 6" 21 ~ 24 mm 8" 38 ~ 4 2mm 1" ~ 6 mm 12" 9 ~ 9 3mm 14" 11 ~ 11 4mm 16" 1 ~ 1 4mm 18" 18 ~ 19 mm " 2 ~ 24 *1: Range ability 1 : 2 *2: Range ability 1 : 2 (1 : 1. on request) Consult factory for other scale ranges, if required. FULL SCALE RANGE m 3 /h (nor) (Air, C, 1 atm) DP kpa *1 DP 1kPa *2 DP kpa *2 3. ~ 12 4. ~ 28 7. ~ 6 11 ~ 11 18 ~ 18 22 ~ 2 3 ~ 4 6 ~ 6 8 ~ 9 14 ~ 1 2 ~ 24 ~ 34 ~ 8 ~ 9 1 ~ 1 16 ~ 16 21 ~ 21 26 ~ 27 ~ 3 4. ~ 16 6 ~ 39 1 ~ 9 1 ~ 1 2 ~ 2 32 ~ 34 ~ 9 ~ 9 1 ~ 1 ~ 21 ~ 3 4 ~ 4 7 ~ 8 11 ~ 1 17 ~ 17 2 ~ 2 28 ~ 28 ~ 36 4 ~ 4 Gas measurement versions are all custom made. The following table is shown by the flow rate of AIR, at C, 1 atm. Conduct conversion calculation and refer to the table. Conversion calculation Q A = Q Cγ Ct Cp Q A : Converted Air flow Q : Flow rate of Actual Gas Cγ : Cγ = γ /1.293 (γ=sp, Wt of the Gas, kg/nm 3 ) Ct : Ct = (273+t)/273 (t=operating temp., C) Cp: Cp =.113/(.113+p) (p=operating press. MPa) The calculation of figures in the above flow range table has been made on the premises that SGP, a JIS code name for a carbon steel pipe for ordinary piping, had been used for main pipes. ln case of pipes other than SGP, multiply the above liquid quantity by (the inner diameter of a pipe used the inner diameter of a SGP pipe) 2. Standard scale graduation -1-12 -1 - -2 - -3-4 -4 - - -6-6 -7-7 -8-8 -9-9 1 12 1 2 3 4 4 6 6 7 7 8 8 9 9 8 4 6 7 8 9 4 9 1 7 4 6 7 6 1 4 6 1 4 6 1 4 4 4 1 1 3 1 1 1 1 2 2.4 3 4 6 7 8 9 1 11 12 13 14 1 17 17 18 19 (.) (.) (.) (.) (1.) (1.) (1.) (1.) (1.) (2.) (2.) (2.) (2.) (2.) (.) (.) (.) (.) (.) 6 TOKYO KEISO CO., LTD. TG-F771-E
NO SERIES STANDARDIZED VERSION NO SERIES is the fixed scale range version of O-18 ORIFLO. Available size is 1 mm(3/8")~1mm(4"). MODEL CODE FOR LIQUID MEASUREMENT, Material is same as Class 1 in page 3. NOL SN SC FN FC Size Scale range code Rc thread, No isolation valve Rc thread, Isolation valve provided Flange ended, No isolation valve Flange ended, Isolation valve provided Scale range table Size 1mm mm Model code NOL12 4 6 8 NOL13 8 1 1 NOL1 2 NOL2 4 6 NOL34 6 8 1 Scale range 4 ~ L/h 8 ~ 4 1 ~ 6 16 ~ 8 6 ~ L/h 1 ~ 16 ~ 8.2 ~ 1 m 3 /h.3 ~ 1..3 ~ 1. m 3 /h.4 ~ 2. ~ 2..6 ~ 3.4 ~ 2 m 3 /h.6 ~ 3.8 ~ 4 1 ~ 1.2 ~ 6.8 ~ 4 m 3 /h 1.2 ~ 6 1.6 ~ 8 2 ~ 1 Calibration condition : Water, Sp. Gr. 1., 1. mpa. s viscosity Size 4mm mm 8mm 1mm Model code NOL4 8 1 1 NOL1 1 2 NOL61 4 NOL8 4 NOL14 6 8 1 Scale range 1 ~ m 3 /h 1.6 ~ 8 2 ~ 1 3 ~ 1 2 ~ 1 m 3 /h 3 ~ 1 4 ~ ~ 2 3 ~ 1 m 3 /h 4 ~ 6 ~ 8 ~ 4 6 ~ m 3 /h 8 ~ 4 1 ~ 8 ~ 4 m 3 /h 1 ~ 12 ~ 6 16 ~ 8 ~ 1 MODEL CODE FOR GAS MEASUREMENT, Material is same as Class 1 in page 3. NOG SN SC FN FC Size Rc thread, No isolation valve Rc thread, Isolation valve provided Flange ended, No isolation valve Flange ended, Isolation valve provided Scale range table Size 1mm mm Model code NOG1 NOG1 NOG NOG2 NOG32 Calibration condition : Air, C 1 atm Scale range 2 ~ 1 m 3 /h (std) ~ 2 m 3 /h (std) 1 ~ m 3 /h (std) ~ 1 m 3 /h (std) ~ 1 m 3 /h (std) Size 4mm mm 8mm 1mm Model code NOG4 NOG NOG6 NOG8 NOG1 Scale range 4 ~ m 3 /h (std) 8 ~ 4 m 3 /h (std) 1 ~ 6 m 3 /h (std) ~ 1 m 3 /h (std) ~ 1 m 3 /h (std) TG-F771-E TOKYO KEISO CO., LTD. 7
EXTERNAL DIMENSION SCREW CONNECTION TYPE O-18 -SC- - (1) MATERIAL CLASS 1 (FCD4) ~1mm, 2 3 (SCS14) 1mm~mm SIZE 1mm mm 4mm mm 8mm 1mm Main pipe FCD4 74 8 9 1 11 1 1 1 1 14 16 2. 2.2 2.3 3. 3.. 7 7 7 7 74 8 9 Main pipe SCS14 L *A Weight(kg) L *A Weight(kg) 1 1 11 11 1 1 1 * A is reduced by 4mm in case lsolation valve is NOT provided. Weight of isolation valve is.4kg 1. 1.6 1.7 1.8 2. 2.1 2.6 (2) MATERIAL CLASS 2 3 (SUS4, SUS316) ~1mm SIZE L * A Weight (kg) 8mm 1mm 1 1 16 17 18 4. 4.3 7. * A is reduced by 4mm in case lsolation valve is NOT provided. Weight of isolation valve is.4kg (3) MATERIAL CLASS 4 (PVC, HT.PVC) 1mm~mm SIZE L * A Weight (kg) 1mm mm 4mm mm 7 7 7 7 8 8 9 1 1 16 1.1 1.1 1.1 1.1 1.2 1.2 1.2 * A is reduced by 4mm in case lsolation valve is NOT provided. Weight of isolation valve is.2kg 8 TOKYO KEISO CO., LTD. TG-F771-E
FLANGE CONNECTION TYPE O-18 -FC- - MATERIAL CLASS 1 2 3 SIZE Main pipe 1 2 3 (SGP,SUS4,SUS316) L *1 A *2 Weigh (kg) 1mm mm 4mm mm 8mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 6mm 14 1 1 1 16 17 17 19 21 24 26 29 31 33 36 39 44 3.2 3.6 4.2.4 6.7 7.1 8. 11.4 12 1. 27 3 61 74 93 11 1 17 *1: A is reduced 4mm in case isolation valve is NOT provided. *2: In case flange rating JIS1K Weight of isolation valve is.4kg Special design with L dimension of mm (1A~8A) and mm (1A~6A) available on request, Contact Tokyo Keiso for details. MATERIAL CLASS Main pipe (PVC,HT.PVC) 4 1mm mm 4mm mm 8mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 6mm 12 12 1 1 13 14 1 16 17 18 22 2 27 1.1 1.2 1.3 1. 1.9 1.9 2.3 2.7 3.1 4.1. 8. 9. 14. *1: A is reduced 4mm in case isolation valve is NOT provided. *2: In case flange rating JIS1K Weight of isolation valve is.2kg SIZE 4 L *1 A *2 Weigh (kg) TG-F771-E TOKYO KEISO CO., LTD. 9
WAFER CONNECTION TYPE O- 8 -W - - (1) MATERIAL CLASS 1 2 3 (SS4, SUS4, SUS316, SCS14) SIZE L *A 1mm mm 4mm mm 8mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 6mm 6 6 6 6 6 16 16 16 17 17 18 19 21 2 24 27 3 34 37 4 4 48 Weight (kg) 2. 2.7 2.8 2. 3.6 2. 2.8 3.1 3.3 3.8 8.2 1 13 18 2 34 4 47 8 * A and weight are for JIS1K flange installation and is reduced by 4mm in case isolation valve is NOT provided. Weight of isolation valve is.4kg (2) MATERIAL CLASS 4 (PVC, HT.PVC) SIZE L *A Weight (kg) 1mm mm 4mm mm 8mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 14 14 1 16 16 17 18 18 2 23 26 29 3 34 37 4 4 1.3 1.3 1.4 1.7 1.9 1.9 2.2 2.4 2.6 3. 3.8 4.. 7. 8. 9 12 14 16 * A and weight are for JIS1K flange installation and is reduced by 4mm in case isolation valve is NOT provided. Weight of isolation valve is.2kg 1 TOKYO KEISO CO., LTD. TG-F771-E
INDICATOR SEPARATION VERSION O- 8 - B - - Indicator can be located separately from process by using by-pass piping for easy observation of indication. Ball valves are provided for indicator maintenance purpose. Different materials are available as shown in below table. Special design for bypass piping is available on request. Main pipe Flange connection type (1mm~mm) Other connection L As per description pages 8 and 1. * Main pipe Orifice plate FittingA,B Bypass piping Ball valve Indicator Screw connection Flange connection Wafer connection * By-pass piping size will be 1/2" for PVC. FCD4,SCS14,SUS4,SUS316,PVC SGP/SS4,SUS4,SUS316,PVC SS4,SUS4,SUS316,SCS14,PVC SUS4,SUS316,PVC SCS14,HT.PVC SGP(W),SUS4,SUS316,PVC C3771BE,SCS14A,PVC SCS14,HT PVC L 2-Rc3/8 8 TOKYO KEISO JAPAN () Std. (1) 2-Rc3/8 12 6 TG-F771-E TOKYO KEISO CO., LTD. 11
INDICATOR (1) LOCAL INDICATION ONLY O-18 MATERIAL (SCS14) MATERIAL (HT.PVC) (2) LOCAL INDICATION WITH ALARM CONTACT O-78 MATERIAL (SCS14) MATERIAL (PVC, HT.PVC) ISOLATION VALVE OPEN OPEN 8 44 MATERIAL (SCS14) MATERIAL CLASS (HT.PVC) 12 TOKYO KEISO CO., LTD. TG-F771-E
O-19 SERIES DIAL INDICATOR TYPE In addition to standard O-18 with Glass tube flowmeter indication, O-19 series Dial indication type is available. Consult factory for details. A. Integrated Dial Indication type O-19-DG O-19-DG indicaters flowrate by pressure gauges. 3 way manifold valve is provided. B. -19-B separate indication series Different types of pressure indicators can be used for indication of flow rate. They can be installed separately away from orifice piping for better observation. a. Manometer indication O-19-BD b. U shaped Manometer indication O-19-BU 27 Max.1 H Rc1/4 L Rc1/4 Max.19 (A (±)2) Max.9 Rc1/4 (9 (±) ) c. Dial indication O-19-BM d. Indication in protection housing O-19-BS Air Vent (L) ZERO ADJ. Air Vent (H) 4 A A' WINDOW (23) 2" pipe WINDOW Rc1/2 (L) 4 Rc1/2 (H) MAX.24 MAX.87 (79) t ød Rc1/4 H L Rc1/4 (16) TG-F771-E TOKYO KEISO CO., LTD. 13
SUGGESTIONS (1) Required straight run upstream and downstream The following straight run is recommended for accurate measurement : (3) Reading of flow rate The flow rate is to be read by the position of float and engraved graduation. Refer to the following : Upsttream Downstream 9 elbow 1D 4D Fully opened valve 12D 4D center Gas application Liquid application for local indicator top (2) Air bubble elimination and draining Air bubble in the indicator may cause measurement error. Eliminate the air in the indicator through Air elimination plug at the top of indicator for the start-up. Alarm versions (Metallic material) top Alarm versions (PVC material) top For liquid application, it is recommended to close the isolation valve and drain out the liquid in the indicator through drain plug in case the operation of process is stopped for some reason. Freezing of the liquid in the tapered tube may cause breakage of tube. Indicator with drain valve is available on request. Air elimination plug (4) Flow direction By changing the direction of indicator, ORIFLO may be used for any flow direction of bottom to top, left to right, right to left and top to bottom. This change can be conducted in the field as well. Ball valves are available for air eliminator and drain out as option as follows ; MATERIAL CONSTRUCTION MATERIAL CLASS Air elimination Drain elimination 1 2 3 Ball valve Ball valve (C3771BE) (SCS13) (SCS14) Nipple Nipple R1/4 R1/4 Rc1/4 Rc1/4 ACCESSORIES (1) COUNTER FLANGES Counter flanges are available on request. Supply scope is as follows : (2) TS FLANGES TS socket welding flanges are also available on request : Description TS Socket welding flange Bolt and nuts Gaskets Q'ty 2 As required 2 Material PVC, HT.PVC SS4, SUS4 NBR, EPDM, Others Description Flange Bolt and nuts Gaskets Q'ty 2 As required 2 Material SS4, SUS4,SUS316 SS4, SUS4 Non-asbestos, NBR, FPM, Others 14 TOKYO KEISO CO., LTD. TG-F771-E
ORDERING INFORMATION Specify the following for order or inquiry ; MODEL O 8 Fluid name Density g/cm 3 kg/m 3 (nor) Viscosity mpa.s Pressure Nor. Max. MPa Temperature Nor. Max. C Connection Rc Other thread ( ) JIS1KFF JIS1KRF Other flange ( ) Wafer for JIS1K flange Wafer for other flange ( ) Inner diameter of process piping SGP mm Full scale m 3 /h m 3 /h(nor) Seal material NBR FPM Others ( ) In case of alarm version Number of point 1 2 Setting 1 ( H L at m 3 /h m 3 /h(nor) ) Setting 2 ( H L at m 3 /h m 3 /h(nor) ) Installation accessories Counter flanges Material ( ) TS flanges Material ( ) Other special instructions, if any ; TG-F771-E TOKYO KEISO CO., LTD. 1
O-181-SN O-181-WC O-186-SN O-188-FC O-181-WC O-786-SN * Specification subject to change without notice Head Office : Shiba Toho Building, 1 7 24 Shibakoen, Minato-ku, Tokyo 1 88 Tel : 3 3431 162 (KEY) ; Fax : 3 3433 4922 e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp 16 TG-F771-E