HVG INDUSTRIAL VALVES 0058: ZJHY Pneumatic Diaphragm Small Flow Control Valve
Advantage: small size, light, simple installation and maintenance
Application: used to regulating small flow with liquid, vapor etc.
| Nominal dimension (mm) | G1/2′ | G3/4′ | ||||||
| Seat diameter (mm) | 1.5* | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Flow coefficient Kv | 0.0025 | 0.08 | 0.12 | 0.20 | 0.32 | 0.50 | 0.80 | 1.00 |
| Rangeability | 30:1 | |||||||
| Nominal pressure | 6.4, 1.0 MPa | |||||||
| Valve core | Single seat plunger type | |||||||
| Valve body | 1Cr18Ni9Ti、316、316L, corrosion resisting alloy | |||||||
| Valve seat | 1Cr18Ni9Ti、316、316L, corrosion resisting alloy | |||||||
| Packing | PTFE, flexible graphite | |||||||
| Diaphragm | NBR | |||||||
| Flow characteristics | Linear | |||||||
| Action type | Pneumatic to open, pneumatic to close | |||||||
| Working temperature | Ordinary model:-40~230°C, Radiation model:230~450°C, Special ordering:450~600°C | |||||||
| Flange standard | JB78-59, JB79/59, JB/T79.1-94, JB79.2-94, ANSI, JIS, DIN | |||||||
| Actuator | ZHA/B type multi spring pneumatic actuator | |||||||
| Available parts | Positioner, solenoid valve, air filter pressure reducing valve, limit switch, valve location feedback device, emergency reaction device, hand wheel etc. | |||||||
