ZQGP Pneumatic Quick Shut-off Valve, Material WCB / 304 / 316
ZQGP pneumatic quick shut-off valve is one kind of pneumatic control valve which receives the signal from positioner to cut down or open to control the pressure or flow or level for the media. Actuator movement speed, thrust, a self-reset function, with hand operated institutions; body unobstructed flow path, flow coefficient, elastic and rigid spool valve cascade double seal. New and unique structure makes the product quickly became a class action, tight cut, safe and reliable, high-performance new shut-off valve.
Main parts and materials
材料代号 | C（WCB） | P（304） | R（316） | |
The main parts | Body, bonnet | WCB（ZG230-450） | ZG1Cr18Ni9Ti（304） | ZG1Cr18Ni12Mo2Ti（316） |
Valve, valve seat | 1Cr18Ni9Ti（304）or the Secretary of titanium alloy welding Levin | 1Cr18Ni9Ti（304）or the Secretary of titanium alloy welding Levin | 1Cr18Ni12Mo2Ti（316）or the Secretary of titanium alloy welding Levin | |
Stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | |
Packing | V-type PTFE (F4), flexible graphite | |||
Gasket | PTFE (F4), stainless steel gaskets, metal graphite spiral wound gasket | |||
Oil and rubber O-ring | Spring 60Si2Mn | |||
Spring | 60Si2Mn | |||
Putting | 2Cr13 | |||
Handwheel | HT200 | |||
Conditions apply | For media | Water vapor liquid gas oil category | Alkali corrosive nitric acid gas liquids | Acetic acid and other corrosive gases and liquids |
Temperature | Hard seal: -30 ~ +450 ℃ soft seal: -30 ~ +180 ℃ | |||
The main technical parameters
DN 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 MPa | 1.6 ； 4.0 ； 6.4 | ||||||||||
Stroke mm | 10 | 16 | 25 | 30 | 40 | 60 | |||||
Flow characteristics | Quick opening | ||||||||||
Actuator Model | ZSPA/B-1、ZSNA/B-1 | ZSPA/B-2、ZSNA/B-2 | ZSPA/B-3、ZSNA/B-3 | ||||||||
Action in the form of | Single acting / double acting | ||||||||||
Air pressure MPa | 0.4-0.7 | ||||||||||
Leakage | Soft Seal: O leakage; hard seal :10-5 × valve rated capacity | ||||||||||
Off time S | 0.5 | 1 | 1.5 | 2 | 3 | 4 | |||||
Equipped with accessories: solenoid valves, valve echo, air filter regulator, handwheel operation 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 |
Shinjo Company is a high tech enterprise specialized in producing various industrial valves. Shinjo strive on providing full package of industrial valve solution to client, focus on industrial valve manufacture, development, sales and services.
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