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ZQGP Piston Quick Cut Valve
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ZQGP pneumatic fast shut-off valve by the domestic first launch of the pneumatic multi-spring piston actuator and low flow resistance, double seal structure of the shut-off valve. Actuator action speed, thrust, self-reset function, with manual operation; valve body flow path, flow coefficient, spool seat elastic and rigid cascade double seal. Unique and unique structure of the product to make this product a fast action, tightly cut off, safe and reliable high-performance new type of shut-off valve.

Main parts materials

Material code C (WCB) P (304) R (316)
main 
Components
Body, bonnet WCB (ZG230-450) ZG1Cr18Ni9Ti (304) ZG1Cr18Ni12Mo2Ti (316)
Spool, seat 1Cr18Ni9Ti (304) or the Secretary of titanium alloy welding 1Cr18Ni9Ti (304) or the Secretary of titanium alloy welding 1Cr18Ni12Mo2Ti (316) or titanium alloy alloy welding
Stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
filler V-type polytetrafluoroethylene (F4), flexible graphite,
Gasket Reinforced polytetrafluoroethylene (F4), stainless steel gasket, metal graphite spiral wound gasket
O-ring Oil resistant rubber
spring 60Si2Mn
Putt 2Cr13
Hand wheel HT200
Applicable conditions Applicable media Water vapor Nitric acid base Corrosive gas liquid Acetic acid and other corrosive gas liquid
proper temperature Hard seal: -30 ~ +450 ℃ soft seal: -30 ~ + 180 ℃
The main technical parameters
Nominal diameter mm 20 25 40 50 65 80 100 150 200
Seat diameter mm 20 25 32 40 50 65 80 100 125 150 200
Rated flow coefficient Kv 6.5 10 15 25 40 65 100 150 260 350 540
Nominal pressure MPa 1.6; 4.0;
Travel mm 10 16 25 30 40 60
Flow characteristics Quick open
Actuator type ZSPA / B-1, ZSNA / B-1 ZSPA / B-2, ZSNA / B-2 ZSPA / B-3, ZSNA / B-3
Form of action Single acting type / double acting type
Air supply pressure MPa 0.4-0.7
Leakage Soft seal: O leakage; hard seal: 10-5 × valve rated capacity
Cut off time 0.5 1 1.5 2 3 4
With accessories: solenoid valve, valve return device, air filter pressure reducer, hand wheel operating mechanism Dimensions
DN (mm) H (mm) Hg (mm) ФA (mm) ФD (mm) L (mm)
PN1.6 PN6.4 PN1.6 PN6.4
25 410 580 196 115 135 184 210
40 514 684 266 150 165 222 251
50 520 690 266 165 175 254 286
65 694 904 348 185 200 276 311
80 696 906 348 200 210 298 337
100 709 919 348 220 250 352 394
150 1186 1146 486 285 340 451 508
200 1208 1468 486 340 405 600 650


Ordering Information 1. Product Type and Name 2. Nominal Diameter DN (mm 3. Nominal Pressure 4. Flow Characteristics Requirement 5. Body Material and Trim Materials 6. Media Type and Temperature Range 7. Valve Before and After Pressure (Differential Pressure ) 8. Sealed form 9. Supporting accessories, it is recommended that you install the air filter triple and two-position five-way solenoid valve

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