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KZQGP Pneumatic Piston Quick Cut Valve
Overview of ZQGP Pneumatic Quick Cut off Valve
Product details
ZQGP type pneumatic quick cut-off valveoverview
The ZQGP pneumatic quick cut-off valve consists of the first domestically introduced pneumatic multi spring piston actuator and a low flow resistance, dual sealing structure cut-off valve. The actuator has fast action speed, high thrust, self resetting function, and a manual control mechanism; The valve body flow path is unobstructed, the flow coefficient is large, and the valve core and seat have elastic and rigid cascade dual seals. The novel and unique structure makes this product a high-performance new type of shut-off valve with fast action, tight cut-off, safety and reliability.
ZQGP type pneumatic quick cut-off valveMaterial for main parts
| MATERIAL | C（WCB） | P（304） | R（316） | |
|
main part |
Valve body and valve cover | WCB（ZG230-450） | ZG1Cr18Ni9Ti（304） | ZG1Cr18Ni12Mo2Ti（316） |
| Valve core and seat | 1Cr18Ni9Ti (304) or Si Ti Lai alloy overlay welding | 1Cr18Ni9Ti (304) or Si Ti Lai alloy overlay welding | 1Cr18Ni12Mo2Ti (316) or Stellite alloy overlay welding | |
| valve stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | |
| filler | V-shaped polytetrafluoroethylene (F4), flexible graphite | |||
| shim | Reinforced polytetrafluoroethylene (F4), stainless steel gasket, metal graphite wrapped gasket | |||
| O-ring seal | oil resistant rubber | |||
| spring | 60Si2Mn | |||
| push rod | 2Cr13 | |||
| handwheel | HT200 | |||
| Applicable working conditions | Applicable Medium | Water vapor, oil products, gas and liquid | Nitrate alkali corrosive gas liquid | Acetic acid and other corrosive gases and liquids |
| Temperature | Hard seal: -30~+450 ℃ Soft seal:- 30～+180℃ | |||
ZQGP type pneumatic quick cut-off valveMain technical parameters
| Nominal diameter mm | 20 | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | ||
| Valve 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 ； six point four | ||||||||||
| Travel distance mm | 10 | 16 | 25 | 30 | 40 | 60 | |||||
| Traffic characteristics | Hurry up | ||||||||||
| Model of actuator | ZSPA/B-1、ZSNA/B-1 | ZSPA/B-2、ZSNA/B-2 | ZSPA/B-3、ZSNA/B-3 | ||||||||
| Action form | Single acting/double acting type | ||||||||||
| Gas source pressure MPa | 0.4-0.7 | ||||||||||
| leakage rate | Soft seal: O leakage; Hard seal: 10-5 times the rated capacity of the valve | ||||||||||
| Cut off time S | 0.5 | 1 | 1.5 | 2 | 3 | 4 | |||||
ZQGP type pneumatic quick cut-off valveExternal 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 Notice for ZQGP Pneumatic Quick Cut Off Valve
1. Product model and name 2. nominal diameter DN (mm) 3. nominal pressure 4. flow characteristics requirements 5. valve body material and valve trim material
6. Type of medium and temperature range 7. Pressure difference before and after the valve 8. Sealing form 9. Supporting accessories
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