contact us

Flow Constant Flow ValveNSPW. NFFW. NFF-S Series


*Specifications are subject to change without prior notice.

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.

Short Specifications

External View NSPWシリーズ NSPWシリーズ NSPWシリーズ
Model NSPW series NFFW series NFF-S series
Fluids Water, Other Liquid Oil
Fluid temperature Max. 80°C Max. 180°C
Pressure Max. 1.0MPa
Control Pressure
0.03 - 1.0 Mpa * 0.03 - 1.0 Mpa * 0.05 - 07 Mpa *
Process connection Rc Screw JIS10KFF Flange
Size 3/8, 1/2, 3/4 32A, 40A, 50A, 65A, 80A 50A, 80A
Flow range 5 - 55 L/min 30 - 850 L/min 170 - 850 L/min
Flow setting Fixed
Accuracy 5 to 20 L/min: ±15%
22 to 850 L/min:±10%
Materials Body: Carbon steel
Needle,Spring: SUS