Temperature: | Ordinary Temperature |
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Certification: | GS |
Media: | Gas, Oil, Water, Acid |
Standard: | Standard |
Connection Mode: | Flange |
Power: | Pneumatic |
Customization: |
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Valve body | |
Form | Straight through cast ball valve |
Nominal diameter | 25. 32. 40. 50. 65. 80. 100. 125. 150. 200. 250. 300mm |
Nominal pressure | PN16, 40, 64bar |
Flange standard | JB/T79.1-94, 79.2-94, etc |
Materials | Cast steel (ZG230450), stainless steel (ZGICr18Ni9Ti, ZGICr18Ni12M02Ti), etc |
Upper valve cover | Standard: - 17-230 ºC heat type: 230-450 ºC low temperature type: 60-196 ºC bellows seal type: - 40-350 ºC |
Valve cover form | Bolt press type |
Packing | V-shaped PTFE packing, asbestos packing containing impregnated polytetrafluoroethylene packing, asbestos textile packing, graphite packing |
Structural form | Cage regulating valve |
Valve inner assembly | |
Spool type | Pressure balanced spool |
Flow characteristics | Equal percentage characteristics and linear characteristics |
Materials | Stainless steel, stainless steel castello alloy, titanium and corrosion resistant table gold, etc. |
Executive mechanism | |||||
Type | ZHA/B multi-spring film actuator | ||||
Model number | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 |
Effective area cm2 | 350 | 350 | 560 | 900 | 1400 |
Stroke mm | 10. 16 | 25 | 40 | 40, 60 | 100 |
Spring range KPa | 20-100 (standard), 20-60, 60-100, 40-200, 80-240 | ||||
Diaphragm material | Butadiene rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth | ||||
Air supply pressure | 140-400KPa | ||||
Air source interface | RC1/4" | ||||
Ambient temperature | - 30-70 ºC |
Valve action form |
Air-close type (B) - Valve position open when air is lost (FO); Air open (K) - valve position closed when air is lost (FC) |
Accessories |
Positioner, air filter pressure reducer, position keeping valve, travel switch, valve position transfer, hand wheel mechanism, etc |
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