ZJHM pneumatic film sleeve valve Products a, ZJHM-40 ??pneumatic film sleeve valve Overview: ZJHM pneumatic film sleeve valve using the sleeve guide, pressure balanced double seal surface, single sealing surface structure is a force balanced valve, the valve structure is compact, streamlined fluid passage showing S. A little bit of the pressure drop in circulation, wide tuning range, high accuracy flow characteristics. Valve equipped with multi spring diaphragm actuator, having the structure of small output power, more suitable for the requirements of dynamic stability, low noise, cavitation / flash, etc., high temperature, high pressure fluid control under poor conditions. ZJHM pneumatic film sleeve valve, ZJHM pneumatic sleeve valve, fine small pneumatic film sleeve valve, pneumatic control valve, sleeve valve, pneumatic single seat control valve, pneumatic straight sleeve valve, oxygen-specific adjustment valves, pneumatic diaphragm valves, fine small sleeve valve. Intelligent electric valve, angled valve, angle valve, single-seat control valve, cage control valve, sleeve valve, welded valve, welded valve, temperature control valve, high pressure regulating valve, steam control valve, flow control valve, the liquid control valve, a gas valve, stainless steel valves, three-way valve, through the control valve, the valve flange, cast steel valve, the control valve steel, WCB / 304/316 valve. Product Standard Model Specification ZJHM-40, ZJHM-40C, ZJHM-40P, ZJHM-40B, ZJHM-40K, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500. ZJHM-10, ZJHM-16, ZJHM-40, ZJHM-64, ZJHM-25, ZJHM-PN10, ZJHM-PN16, ZJHM-PN40, ZJHM-PN64, ZJHM-PN25, ZJHM-10K, ZJHM-16K, ZJHM- 40K, ZJHM-64K, ZJHM-25K, ZJHM-10B, ZJHM-16B, ZJHM-40B, ZJHM-64B, ZJHM-25B, ZJHM-10C, ZJHM-16C, ZJHM-40C, ZJHM-64C, ZJHM-25C, ZJHM-10P, ZJHM-16P, ZJHM-40P, ZJHM-64P, ZJHM-25P. Two, ZJHM-40 ??pneumatic film sleeve valve technical parameters and performance: Body Type Foundry straight ball valve nominal diameter 25,32,40,50,65,80,100,125,150,200,250,300mm Nominal PN1.6,4.0,6.4MPa flange standard JB / T79.1-94,79.2-94 materials such as cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti) and so on bonnet Standard -17 ~ + 230 ℃, cooling type + 230 ~ + 450 ℃, low temperature -60 ~ -196 ℃, bellows seal type -40 ~ + 350 ℃ packing gland type Bolt Clamp V-type PTFE packing impregnated poly tetrafluoroethylene asbestos packing, asbestos textile packing, graphite packing three, ZJHM-40 ??film sleeve valve pneumatic valve components: The spool type pressure-balanced valve plug and equal percentage flow characteristic linear characteristic material stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti , 17-4PH, 9Cr18,316L), stainless steel welding Stellite alloys, titanium, and corrosion-resistant alloys. Four, ZJHM-40 ??pneumatic film sleeve valve actuator parameters: Type ZHA / B thin film multi-spring actuator model ZHA / B-22 ZHA / B-23 ZHAB-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 Dingqing rubber diaphragm material sandwiched nylon, ethylene propylene rubber clip nylon air supply pressure 140 ~ 400KPa source interface RC1 / 4 'Ambient temperature -30 ~ + 70 ℃ five, ZJHM-40 ??pneumatic valve action film sleeve valve type: gas valve type (B ) - When the loss of gas valve opening (FO); open air (K) - when the loss of gas valve off (FC). Accessories: locator, air filter pressure reducer, to secure his position valves, limit switch, valve position transmitter, handwheel institutions. Six, ZJHM-40 ??pneumatic film sleeve valve performance parameters: project without locator locator basic error% ± 5.0 ± 1.0 Hysteresis% ≤3.0 ≤1.0% ≤3.0 ≤0.4 always dead-point deviation% gas starting point ± 2.5 ± 1.0 ± 5.0 ± 1.0 endpoint starting point gas off the end of ± 5.0 ± 1.0 ± 2.5 ± 1.0% ≤2.5 rated travel deviation amount of leakage l / h 0.01% × valve rated capacity adjustable range R 30:01 seven, ZJHM-40 pneumatic film sleeve valve rated flow coefficient Kv, rated travel, equipped with actuator model, allowing the pressure: Nominal diameter DN (mm) 25 32 40 50 65 80 100 125 150 200 250 300 seat diameter dN (mm) 253,240,506,580,100 125,150,200,250,300 rated flow coefficient Kv straight 11 17.6 27.5 4,469,110,176,275,440,690 1000 10 percent by 1600 and other 16 25 4,063,100,160,250,400,630 900 1440 rated travel L (mm) 16 254,060,100 equipped with Actuator Model ZHA / B-22 ZHA / B-23 ZHA / B-34 ZHA / B-45 ZHA / B-56