HVG INDUSTRIAL VALVES 0038: Diaphragm Low Temperature Pneumatic Control Valve
Application: suit to work under low temperature -250oC
| Nominal dimension (mm) | G1/2′, G3/4′ | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||||||||||
| Seat diameter (mm) | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 15 | 20 | 26 | 32 | 40 | 50 | 66 | 80 | 100 | 125 | 150 | 200 | |
| Flow coefficient (Kv) | Small flow | 0.08 | 0.12 | 0.20 | 0.30 | 0.50 | 0.80 | 1.00 | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Single seat | – | – | – | – | – | – | – | 1.2 | 2.0 | 3.2 | 5.0 | 8 | 13 | 22 | 32 | 50 | 80 | 120 | 200 | 280 | 450 | |
| double seat | – | – | – | – | – | – | – | – | – | – | – | 10 | 16 | 25 | 40 | 72 | 100 | 160 | 250 | 400 | 630 | |
| Rated travel (mm) | 10 | 16 | 25 | 40 | 60 | |||||||||||||||||
| Rangeability | 30:1 | |||||||||||||||||||||
| Nominal pressure | 1.6, 4.0, 6.4MPa | |||||||||||||||||||||
| Valve core | single and double seat valve (direct connection casting globe valve), small flow valve (direct connection cast valve) | |||||||||||||||||||||
| Flow characteristics | Equal percentage, linear, quick opening | |||||||||||||||||||||
| Action type | Pneumatic to open, pneumatic to close | |||||||||||||||||||||
| Work temperature | -250~-60oC | |||||||||||||||||||||
| Flange standard | JB78-59, JB79/59, JB/T79.1-94, JB79.2-94, ANSI, JIS, DIN | |||||||||||||||||||||
| Actuator | ZMB pneumatic diaphragm actuator, ZHB mini pneumatic diaphragm actuaotr | |||||||||||||||||||||
| Available part | Positioner, solenoid valve; air filter pressure reducing valve, limit switch, valve position feedback device，emergency actuating device, handwheel etc | |||||||||||||||||||||
