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 ℃ |
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 |
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