Closed circuit device of pipe throttle stop venting valve is widely used in petroleum, natural gas, coal gas, liquefied petroleum gas engine oil refinery, airport, chemical, oil and gas storage and transportation and so on.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of various types of gate valve. Please contact or consult online.
Part name | Valve body, valve cover | Valve | The stem | valve seat | Stem nut | Seal ring | filler | Seal finger |
Base name | WCB | Alloy steel (special treatment) | Stainless steel | Alloy steel (special treatment) | Aluminum bronze | Filled PTFE | Expanded graphite filled PTFE | Oil resistant sealing grease |
Anti sulfur type |
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| Sulfur resistant stainless steel |
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| Anti sulfur sealing grease |
Pressure class | Pressure test at room temperature(MPa) | Applicable temperature℃ | Applicable medium |
Seal up | Upper seal | housing | Gas seal | "G" type | "D" type | Ordinary type | Anti sulfur type | Basic type |
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Nominal pressurePN(MPa) | 1.6 | 1.76 | 1.76 | 2.4 | 0.6 | -29~250 | -46~121 | -29~121 | Media containing H 2 S and Co 2 > 500Mg/m 3 | Petroleum, natural gas, water, etc. |
2.5 | 2.75 | 2.75 | 3.75 | 0.6 |
4.0 | 4.4 | 4.4 | 6.0 | 0.6 |
6.4 | 7.04 | 7.04 | 9.6 | 0.6 |
10.0 | 11.0 | 11.0 | 15.0 | 0.6 |
16.0 | 17.6 | 17.6 | 24.0 | 0.6 |
Nominal pressurePN(MPa) | size(mm) |
DN(mm) | 25 | 40 | 50 | 80 | 100 | 150 | 200 | 250 |
1.6 | L | 216 | 230 | 230 | 310 | 350 | 480 | 600 | 730 |
H | 243 | 265 | 346 | 409 | 484 | 521 | 594 | 621 |
H1 | 86 | 108 | 115 | 146 | 163 | 202 | 292 | 355 |
D0 | 180 | 250 | 250 | 300 | 300 | 350 | 350 | 400 |
weight(Kg) | 17 | 24 | 27 | 52 | 60 | 125 | 165 | 285 |
2.5 | L | 216 | 230 | 230 | 310 | 350 | 480 | 600 | 730 |
| H | 243 | 265 | 346 | 409 | 433 | 521 | 594 | 621 |
| H1 | 86 | 108 | 115 | 146 | 163 | 202 | 292 | 355 |
| D0 | 180 | 250 | 250 | 300 | 300 | 350 | 350 | 400 |
| weight(Kg) | 17 | 24 | 27 | 55 | 66 | 140 | 180 | 310 |
4.0 | L | 216 | 230 | 230 | 310 | 350 | 480 | 600 | 730 |
| H | 243 | 265 | 346 | 409 | 433 | 521 | 594 | 621 |
| H1 | 86 | 108 | 115 | 146 | 163 | 202 | 292 | 355 |
| D0 | 180 | 250 | 250 | 300 | 300 | 350 | 350 | 400 |
| weight(Kg) | 20 | 29 | 32 | 67 | 80 | 168 | 215 | 372 |
6.4 | L | 216 | 230 | 230 | 310 | 350 | 480 | 600 | 730 |
| H | 243 | 265 | 346 | 409 | 433 | 521 | 594 | 621 |
| H1 | 86 | 108 | 115 | 146 | 163 | 202 | 292 | 355 |
| D0 | 180 | 250 | 250 | 300 | 300 | 350 | 350 | 400 |
| weight(Kg) | 20 | 29 | 32 | 67 | 80 | 168 | 215 | 372 |
10.0 | L | 230 | 20 | 300 | 380 | 430 | 559 | 660 | 787 |
| H | 245 | 265 | 287 | 409 | 433 | 531 | 709 | 817 |
| H1 | 78 | 106 | 110 | 152 | 169 | 225 | 321 | 399 |
| D0 | 200 | 250 | 300 | 350 | 250 | 400 | 500 | 500 |
| weight(Kg) | 29 | 42 | 55 | 95 | 120 | 240 | 310 | 530 |
16.0 | L | 230 | 260 | 300 | 390 | 450 |
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| H | 215 | 265 | 237 | 414 | 440 |
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| H1 | 78 | 105 | 110 | 155 | 175 |
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| D0 | 200 | 250 | 300 | 350 | 350 |
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| weight(Kg) | 35 | 50 | 65 | 116 | 145 |
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