Japan, Tokyo Keiso
Tokyo Keiso NSPW/NFFW/NFF-S Series Constant Flow Valve
Made in Japan
Manufacturer: Tokyo Keiso
Model: NSPW/NFFW/NFF-S
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.
Specifications
| External View |  |
 |
 |
|---|---|---|---|
| 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 Difference |
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% |
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| Materials | Body: Carbon steel Needle, Spring: SUS |
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