O-180/780 Series ORIFLO METER COST EFECTIVE FLOW MEASUREMENT FOR LIQUIDS AND GASES GENERAL FEATURES MAIN APPLICATIONS

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1 COST EFECTIVE FLOW MEASUREMENT FOR LIQUIDS AND GASES O-18/78 Series ORIFLO METER 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) See quick delivery model details on page 7. 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 TG-F771-8E SEP. 3K

2 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 Process piping. Thus, scale range for Process piping can be engraved onto the small sized flowmeter and the flow rate through the Process 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. Measuring tube Orifice plate Return tube By-pass return Valve Handle Metering tube (Graduated) Float By-pass orifice Strainer Isolation valve Process piping By-pass piping CONSTRUCTION ORIFLO consists of : a. lndicator b. lsolation valve c. Measuring tube 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. Measuring tube 2 TOKYO KEISO CO., LTD. TG-F771-8E

3 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 Measuring tube Flange connection Wafer connection Orifice plate Isolation valve body / shaft Indicator body Metering tube Float Part description Cover, scale Sealing For Iiquids For Gases Material Class 1 SCS14/FCD4 *1 SGP/SS4 SS4/SCS14 *3 SUS4 SCS14/SUS316 SCS14 Pyrex glass SUS316 Glass SUS4/ABS Polycarbonate NBR FPM Material Class 2 SCS14 SUS4 SUS4/SCS14 *3 SUS4 SCS14/SUS316 SCS14 Pyrex glass SUS316 Glass SUS4/ABS Polycarbonate NBR FPM Material Class 3 SCS14 SUS316 SUS316/SCS14 *3 SUS316 SCS14/SUS316 SCS14 Pyrex glass SUS316 Glass SUS4/ABS Polycarbonate NBR FPM Material Class 4 PVC PVC PVC PVC PVC/PP PVC Pyrex glass *2 PVC Glass Polycarbonate NBR FPM Material Class 5 HT.PVC HT.PVC HT.PVC HT.PVC HT.PVC/PP HT.PVC Pyrex glass HT.PVC Glass Polycarbonate *1: SCS14 for Abbriviation of material *2: PVC (Max. Press..6MPa) and PP : Polypropylene Acryl (Max. Press..4MPa, Max. Temp. 4 C) tapered tubes are also available. NBR : Nitrile Butadiene Rubber *3: SCS14 for, 1mm (JIS1K) FPM : Fluoro rubber HT.PVC : High temp. PVC ABS : Acrylonitrile Butadiene Styrene NBR FPM MODEL CODE FUNCTION *1 FLOW DIRECTION PROCESS CONNECTION ISOLATION VALVE *2 LINE MATERIAL CODE SEAL MATERIAL MODE CODE S F W N C B N F E Z 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 FLANGE CONNECTION WAFER CONNECTION NOT PROVIDED PROVIDED INDICATOR SEPARATION VERSION mm 4mm mm MATERIAL CLASS 1 (Steel) MATERIAL CLASS 2 (SUS4) MATERIAL CLASS 3 (SUS316) MATERIAL CLASS 4 (PVC) MATERIAL CLASS 5 (HT.PVC) NBR FPM EPDM 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-F771-8E TOKYO KEISO CO., LTD. 3

4 STANDARD SPECIFICATION Measuring fluid : Liquids (upto 3 mpa.s viscosity) Gases (Not suitable for opaque liquids, slurries and steam) Available sizes : Std. (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 (3/8")1mm(4") (mm for PVC, HT.PVC versions) Flange connection Std. JIS1KFF, JIS1KRF Opt. ANSI 1#, JPI 1#, Others Size availability (3/8") Wafer connection Std. For JIS1K flanges Opt. For other flanges Size availability (3/8") Standard Differential pressure : DP (kpa) Function Indicator material For liquids For gases Metallic material (Glass tapered tube) 15 5 Local indication PVC, HT.PVC 15 5 Metallic material (Glass tapered tube) Local indication + Alarm PVC, HT.PVC Other special Differential pressure design available on request. Consult factory for details. Optical alarm type (O-68 ) has the same diff. pressure as local indication type. Standard painting : Munsell 7.5BG4/1.5 PVC part will not be painted. Stainless steel is not painted. Alarm function : 1 or 2 point alarm can be additionally provided. Type of contact : Reed switch (SPST) Termination : M3.5 screw terminal Terminal connection : 15 Max. fluid temp. Material Metallic indicators (Glass tapered tube) PVC indicators HT.PVC indicators NBR seal FPM seal Stainless steel valve shaft Max. fluid temp. 1 C 6 C 8 C 8 C 1 C 1 C Max. Press : 1.MPa (Metallic versions, Mtl class 1,2,3).6MPa (PVC, HT.PVC versions, Mtl class 4,5) Range ability : Std. 1: 2 Different range ability applicable for special design products. Indication accuracy : ±3% F.S. 1 point alarm : 13 2 point alarm : 13, 23 REED SW TERMINAL (SELF RETENTIONING TYPE) Contact capacity : AC1VA (Max. voltage AC 125V, Max. current.5a) DC1W (Max. voltage DC 1V, Max. current.5a) 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-F771-8E

5 SCALE RANGE FOR LIQUID MEASUREMENT mm mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 3/8B 1/2B 3/4B 1B 11/4B 11/2B 2B 21/2B 3B 4B 5B 6B 8B 1B 12B 14B 16B 18B B *1: Range ability 1 : 2.5 *2: Range ability 1 : 2 *3: Range ability 1 : 2 (1 : 1.5 on request) Consult factory for other scale ranges, if required. FULL SCALE RANGE (Water, Density 1.g/cm 3, 1.mPa s viscosity) DP 1kPa * DP 15kPa * DP kpa * 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 ) Example: The flow rate converted to water, of alcohol m 3 / h (Density:.8g/cm 3 ) can be calculated as follows. The flowmeter to be used is to be stainless (local indication only). Qw : Water converted range Q : Flow range for actual liquid γ o : Density of actual Liquid : Density of float γ f Qw = = 44.1 ().8 (7.9 1) (7.9.8) From the above table, select the connection size (1mm, 1 etc.) in which 44.1 is included. Float material Stainless steel (Local indicator) Stainless steel (With alarm) PVC (All types) 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. Density of float 7.9g/cm 3 7.3g/cm 3 3.g/cm mm mm mm mm mm 4.7 2mm mm 4.7 TG-F771-8E TOKYO KEISO CO., LTD. 5

6 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 15 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. mm mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm 3/8B 1/2B 3/4B 1B 1 1/4B 1 1/2B 2B 2 1/2B 3B 4B 5B 6B 8B 1B 12B 14B 16B 18B B *1: Range ability 1 : 2 *2: Range ability 1 : 2 (1 : 1.5 on request) Consult factory for other scale ranges, if required. FULL SCALE RANGE (nor) (Air, C, 1 atm) DP 5kPa *1 DP 1kPa *2 DP kpa * Gas measurement versions are all custom made. Figures in above table shows the flow rate based on 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 : γ /1.293 (γ=density of gas in kg/m 3 (nor)) Ct : (273+t)/273 (t=operating temp., C) Cp :.113/(.113+p) (p=operating press. MPa) Taking, nitrogen gas, density; 1.251kg/m 3 (nor), pressure;.6mpa, and temperature; C for example, the flow rate of (nor) converted to air can be calculated as follows: QA = = (nor) From the above table, select the connection size (, etc.) in which (nor) is included. 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) mm mm mm mm mm 4.7 2mm mm TOKYO KEISO CO., LTD. TG-F771-8E

7 Standard scale graduation Standard scale division is set as per following figure. Select it from F.S. value as below when setting (.5) (.5) (.5) (.5) (1.) (1.) (1.) (1.) (1.) (2.) (2.) (2.) (2.) (2.) (5.) (5.) (5.) (5.) (5.) The figures in ( ) shows minimum graduation of scale. These figures may change according to the differential pressure. Series for quick delivery O F Appoint model code when ordering. Parts such as indicator, isolation valve and measuring tube shall be delivered disassembled. Put them together in accordance with the required flow direction. SPECIFICATION LIQUID : Water DENSITY : 1.g/cm 3 VISCOSITY : 1.mPa s MAX. PRESSURE : 15kPa (Screw connection) kpa (Wafer connection) mm mm 1mm FLOW RANGE MODEL CODE SCREW CONNECTION (Rc) O-18-SC-1-2F O-18-SC-15-2F O-18-SC--2F O-18-SC-25-2F O-18-SC-32-2F O-18-SC-4-2F O-18-SC--2F O-18-SC-65-2F O-18-SC-8-2F O-18-SC-1-2F WAFER CONNECTION (JIS-1K) O-18-WC-25-2F O-18-WC-4-2F O-18-WC--2F O-18-WC-65-2F O-18-WC-8-2F O-18-WC-1-2F Packing method when delivered The 3 parts of indicator, isolation valve, and measuring tube are packed as per picture. (It can be assembled at factory if desired. Advise us of required flow direction.) TG-F771-8E TOKYO KEISO CO., LTD. 7

8 EXTERNAL DIMENSION SCREW CONNECTION TYPE O-18 -SC- - 1 MATERIAL CLASS 1 (FCD4) 1mm, (SCS14) mm mm mm 1mm Main pipe FCD4 L *(A) Mass (kg) Main pipe SCS14 L *(A) 14 Mass (kg) * A is reduced by in case lsolation valve is not provided. Mass of Isolation valve is.4kg 2 MATERIAL CLASS 2,3 (SCS14) 1mm 1mm L 1 16 *(A) * A is reduced by in case lsolation valve is not provided. Mass of Isolation valve is.4kg Mass (kg) MATERIAL CLASS 4,5 (PVC, HT.PVC) mm mm mm L *(A) * A is reduced by 44mm in case lsolation valve is not provided. Mass of Isolation valve is.2kg Mass (kg) TOKYO KEISO CO., LTD. TG-F771-8E

9 FLANGE CONNECTION TYPE O-18 -FC- - MATERIAL CLASS 1, 2, 3 (SGP, SUS4, SUS316) Special design with L dimension of mm () and mm (1mmmm) available on request, Contact Tokyo Keiso for details. mm mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm Main pipe 1, 2, 3 (SGP, SUS4, SUS316) L 54 *1(A) *2 Mass (kg) *1: A is reduced by in case Isolation valve is not provided. *2: In case flange rating JIS1K Mass of Isolation valve is.4kg MATERIAL CLASS 4, 5 (PVC, HT.PVC) mm mm 1mm 1 1mm mm 2mm mm Main pipe 4, 5 (PVC, HT.PVC) L 54 *1(A) *2 Mass (kg) *1: A is reduced by 44mm in case Isolation valve is not provided. *2: In case flange rating JIS1K Mass of Isolation valve is.2kg TG-F771-8E TOKYO KEISO CO., LTD. 9

10 WAFER CONNECTION TYPE O-18 -W MATERIAL CLASS 1, 2, 3 (SS4, SUS4, SUS316, SCS14) mm mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm L 65 *(A) *Mass (kg) * A and mass are for JIS1K flange installation and is reduced by in case Isolation valve is not provided. Mass of Isolation valve is.4kg 2 MATERIAL CLASS 4, 5 (PVC, HT.PVC) mm mm 1mm 1 1mm mm 2mm mm 3mm 4mm 4mm mm L *(A) *Mass (kg) * A and mass are for JIS1K flange installation and is reduced by 44mm in case Isolation valve is not provided. Mass of Isolation valve is.2kg 1 TOKYO KEISO CO., LTD. TG-F771-8E

11 INDICATOR SEPARATION VERSION O-18 - 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. Metallic (Material 13) Part description Material Joint A, B SCS14 Bypass tube SGP (White), SUS4, SUS316 Ball valve C3771BE, SCS13A, SCS14A PVC HT.PVC (Material 4, 5) Part description Material Joint A, B HT.PVC Bypass tube PVC, HT.PVC Ball valve PVC, HT.PVC Bypass tube size will be 1/2" for PVC. TG-F771-8E TOKYO KEISO CO., LTD. 11

12 INDICATOR 1 LOCAL INDICATION ONLY O-18 MATERIAL (SCS14) MATERIAL (PVC, HT.PVC) 2 LOCAL INDICATION WITH ALARM CONTACT O-78 MATERIAL (SCS14) MATERIAL (PVC, HT.PVC) ISOLATION VALVE 55 OPEN (2) G1/ OPEN MATERIAL (SCS14) MATERIAL (PVC, HT.PVC) 12 TOKYO KEISO CO., LTD. TG-F771-8E

13 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 b. U shaped Manometer indication 27 Max.1 H Rc1/4 L Rc1/4 Max.19 (A±2) Max.95 Rc1/4 (9 (±) ) c. Dial indication d. Indication in protection housing Air Vent (L) ZERO ADJ. Air Vent (H) 4 A A' WINDOW (235) 2" pipe WINDOW Rc1/2 (L) 54 Rc1/2 (H) MAX.24 MAX.87 (79) t ød Rc1/4 H L Rc1/4 (16) TG-F771-8E TOKYO KEISO CO., LTD. 13

14 SUGGESTIONS (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. (3) Reading of flow rate The flow rate is to be read by the position of float and engraved graduation. Refer to the following : center Gas application Alarm versions (Metallic material) top Liquid application for local indicator top Alarm versions (PVC, HT.PVC) top Air elimination plug Ball valves are available for air eliminator and drain out as option as follows ; (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. MATERIAL CONSTRUCTION MATERIAL CLASS Air elimination Drain elimination 2 3 Ball valve ASTM A351-CF8M Nipple R1/4 Rc1/4 ACCESSORIES (1) COUNTER FLANGES Counter flanges are available on request. Supply scope is as follows : Description Flange Bolt and nuts Gaskets Q'ty 2 As required 2 Material SS4, SUS4,SUS316 SS4, SUS4 Non-asbestos, NBR, FPM, Others (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 14 TOKYO KEISO CO., LTD. TG-F771-8E

15 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 (nor) Seal material NBR FPM Others ( ) In case of alarm version Number of point 1 2 Setting 1 H L at (nor) Setting 2 H L at (nor) Installation accessories Counter flanges Material ( ) TS flanges Material ( ) Other special instructions, if any ; TG-F771-8E TOKYO KEISO CO., LTD. 15

16 DIGITAL FLOW INDICATION DIFFERENTIAL PRESSURE FLOWMETER with HDT 1 SERIES ORIFLO METER HDT 1 Series oriflo meter works as one flowmeter by the integration of orifice and multi-digital differential pressure indicator. It indicates flow rate by measuring directly the differential pressure generated across the orifice inside pipe. FEATURES For liquids and gases Compact indicators save the space Screw(up to 1mm), flange and wafer connection. From to mm including both are available. Wide rangeability 1 to 1% and accuracy ±3% Full Scale. For details see Technical Guidance of HDT 1. * Specification is subject to change without notice. Head Office : Shiba Toho Building, Shibakoen, Minato-ku, Tokyo Tel : (KEY) ; Fax : overseas.sales@tokyokeiso.co.jp ; URL : 16 TG-F771-8E