CONSTANTFLOWVALVES TOKYOKEISO | Alldatasheet

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TG-F1029-0E JAN. 2009K TG-F1029-1E MAR. 2012K Maintaining flow rate constant under fluctuating pressure ■ General description The constant flow valves are used to main- tain preset flow rate in a line that develops primary (inlet side) or secondary (outlet side) pressure fluctuations. Requiring no control device against pres- sure fluctuation, these valves contribute to savings in space and cost. Especially, they offer best suited and handy use with cooling and hot water lines of air conditioning sys- tems in buildings and water supply lines in plants and multiple housing. Also, as the valves need no power supply to operate, they are safe against highly flam- mable and hazardous fluids. They are accu- rately set for necessary flow rate to the customer’s specification in the factory be- fore shipment so that no field setting is re- quired. ■ Features

  • Designed to make stable liquid feed pos- sible at constant flow rate.
  • Inexpensive. Compact. Light in weight
  • Installable in horizontal or vertical direc- tion as desired.
  • Applicable in wide range of use with small (10mm) to large (80mm) bore di- ameters.
  • Maximum working temperature: 180°C (needle type)
  • Available in five types suitable for vari- ous needs. FPC Series RSP Series NSPW Series NFFW Series NFF-S Series Constant Flow Valves [NSPW Series] [RSP Series] [FPC Series] [NFF-S Series] [NFFW Series]

TG-F1029-1E2 TOKYO KEISO CO., LTD. [FPC Series] ■ Small flow rate needle type constant flow valve Capable of highly accurate design flow rate control [RSP Series] ■ Washer type constant flow valve The valve is so constructed as to utilize rubber elasticity for constant flow rate. Light in weight, compact and best suited for equipment setup.

  • Main parts list ● Common specification No. Name of Parts Materials 1V alve Body C3604

2 Flow Washer NBR·NR

3 Stop Ring SUS304

˞.BUFSJBMTBSFEJGGFSFOUCZGMPX Item noitpircseD sdiulF Water .pmeTsdiulF Max. 35°C Flow rate accuracy /H1100620% Pressure Use .BY.1B Option #PEZ.BUFSJBM464

  • Main parts list ● Common specification .oNs traPfoemaNs lairetaM

1 Valve Body SUS304

2 Needle SUS304

3 Spring SUS304

4 C-Ring SUS304

.pmeTsdiulFM ax 100°C /H1100610% Pressure Use Max 1.0MPa

  • Precaution Statement 1. Set same size of straight run of pipe with constant flow valve in back and forth of it. Primary side→over Size/H110035 [mm] Secondary side→over Size/H1100310 [mm] 2. Vibrations and noise may occur by usage situation, piping configuration and pump characteristics.
  • Model coding system of product '1$ʵ/˘˘1 ʵ 4FSJFT 4J[F 'MPX
  • Model coding system of product
  • Precaution Statement 1. Set same size of straight run of pipe with constant flow valve in back and forth of it. Primary side→over Size/H110035 [mm] Secondary side→over Size/H1100310 [mm] 2. Vibrations and noise may occur by usage situation, piping configuration and pump characteristics. 341ʵ˘˘ 4FSJFT 4J[F 341 #PEZNBUFSJBM$ 3441#PEZNBUFSJBM464
  • Specification Model Connection (m/m) snoisnemiD Flow Size (in.) Type Rc 50.0t o 7 .0 50.0t o 7 .0 0.2 21-PSR 51-PSR L B (L/min) Control Pressure Difference (MPa) Mass (kg)
  • Specification Model Connection Control Pressure Difference (MPa) (m/m) Dimensions Flow Size (in.) Type LC Rc Screw 0.05 to 0.7 50 19 0.7 1.0 1.5 2.0 3/8 55 23 1/2 65 26 FPC-N8P FPC-N10P FPC-N15P 0.2 4.0 5.0 7.0 (L/min) 0.3 Mass (kg)

TG-F1029-1E TOKYO KEISO CO., LTD. 3 [NSPW. NFFW. NFF-S Series] ■ Needle type constant flow valve The valve is so constructed that it receives fluctuating fluid pressure with piston and changes fluid passage area by balancing received pressure with spring force, thereby maintaining constant flow rate.

  • Main parts list
  • Model coding system of product NFFW– /L50482/L50482/L50482S S: Separate type None : Straight type W: Water None : OIL F: Flanged P : Screw-in F: FC250 S : CAC406 C: SCPH2 SS : SUS Series Size
  • Specification /P /BNFPG1BSUT 7BMWF#PEZ 1JTUPO /FFEMF 4QSJOH)PMEFS 4QSJOH" 4QSJOH# /FFEMF)PMEFS 4UPQ3JOH 4MFFWF 4UPQ3JOH -PXFS#PEZ 6QQFS#PEZ #PEZ1BDLJOH ˞.BUFSJBMTBSFEJGGFSFOUCZWBMWFTJ[F .BUFSJBMT /418 $"$ 464 464 /''8 464 464 464 $PS464˞ 464PS461˞ 4$PS'$%˞ CAC406 SUS304 FC250 SUS403 NFF NFF-S SCS2 FCD400 FC250 FC250 NON-ASBESTOS
  • Common specification *UFN %FTDSJQUJPO 'MVJE 'MVJE5FNQFSBUVSF 'MPXSBUF"DDVSBDZ 0QUJPO 8BUFS0UIFS-JRVJE 0JM MAX80°C MAX180°C 5UP20L/min: ±15% 22UP850L/min: ±10% #PEZ.BUFSJBMT464 4$1) &YDFQU'MBOHF3BUJOHPUIFS +*4,'' 1SFTTVSF6TF MAX 1.0MPa .PEFM $POOFDUJPO 4J[F 5ZQF $POUSPM1SFTTVSF %JGGFSFODF ʦ.1Bʧ %JNFO TJPOT ʦNNʧ .BTT ʦLHʧ /418 /418 /418 /418 /''8 /''8 /''8 /''8 /''8 /''4 /''4 4DSFX 'MBOHF +*4,'' 'MBOHF +*4,'' ʙ ˞$POUSPMQSFTTVSFEJGGFSFODFEFQFOETPOTFUUJOHGMPXSBUF 1MFBTFSFGFSUPGMPXDIBSU
  • Precaution Statement 1. Set same size of straight run of pipe with constant flow valve in back and forth of it. Primary side→over Size/H110035 [mm] Secondary side→over Size/H1100310 [mm] 2. Vibrations and noise may occur by usage situation, piping con figuration and pump characteristics.

■ Flow Rate List (Capacity for water) ■ For water (density: 1g/cm3), select optimal flow rate vs. connection size from the above list. ■ For other special fluids, the selection requires compensation by their density. ■ Viscosity compensation For fluids below 5 /H11003 10–5m2/s (50 cst) in dynamic viscosity, the flow rate vs.connection size selection has little to do with viscosity. Change in the selection according to viscosity depends greatly on flow rate and pressure (flow velocity). When flow rate is small or fluid pressure (flow velocity) is low, viscosity is the influencing fac- tor for the selection. Consult with us before selection in the case of high viscosity and small flow rate. (Example) If oil has a flow rate of 500 R/min with density at 0.8g/cm 3, obtain a density conversion factor of 1.118 as follows. /H9253Density conversion factor : k = k : Density conversion factor /H9253 : Density (g/cm3) Thus, 500 ÷ 1.118 /H11340 447R/min. Accordingly, select an approximate flow rate of 450R vs. connection size of 50S, 80 or 80S from the above list. ✽ Uses for flow rate beyond 450R/min are outside of accuracy guar- antee range. Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558 Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922 * Specification is subject to change without notice. 'BDFUP'BDF %JNFOTJPOT NN $POOFDUJPO 4J[F 'MPX -NJO 4 4 3D4DSFX 'MBOHF 4UBOEBSE'MPX NJO NJO NJO NJO NJO NJO NJO NJO NJO NJO )PXUPVOEFSTUBOEUIFDIBSU.JODPOUSPMMFEEJGGFSFOUJBMQSFTTVSF˓NBSL.1B ˚˛NBSL.1B .BYDPOUSPMMFEEJGGFSFOUJBMQSFTTVSFOPODPMPSFEDPMVNO.1BDPMPSFEDPMVNO.1B &YDFQUXBUFS QMFBTFSFGFSUPTQFDJGJDHSBWJUZDPOWFSTJPOUBCMF Pressure difference betweem inlet and outlet: ∆ P (MPa) Flow: Q (%)

0 Set up flow

  • Control Properties
  • Selection of Constant Flow Valve