Pop-up vent valve
Pop-up vent valve
Nominal diameter: DN300 ~ 1000mm
Nominal pressure: ≤ 0.1Mpa
medium temperature: 425 deg.] C
Main material: carbon steel, aluminum
scope: natural gas pipelines, oil
Flange Standard: GB / T9115- 98
Connection Size: GB2555-81PN2.5
Test Method: GB / T13927-92
Special structure and purpose :
This series of vent valve by the body, burst membrane, gripper, valve cover, hammer and other components. Burst membrane installed in the middle of the holder, with the valve body bolted. System overpressure, rupture of the rupture membrane, instant pressure relief, the valve cover pops up under gravity reset. The vent valve in the replacement of the rupture membrane when the valve body and the holder must be lifted vertically.
Bursting membrane owned by the user according to the process characteristics, mainly for building materials, metallurgy, petroleum, chemical and other administrative departments.
Key Features
model | XB-61 XB-42 |
For blasting calculation pressure (must) MPa | 0.1 |
Strength test pressure MPa | 1.5 |
Operating temperature ℃ | Compress explosive gas |
Suitable media | Compress explosive gas |
Main parts material:
Part Name | Body | Connector | lever | cap | Sealing ring | Diaphragm |
material | Carbon steel | Carbon steel | Carbon steel | Carbon steel | rubber | Aluminium Alloy |
The main shape and size of the connection table
DN | D | n-φd | D1 | b | L | L1 | H | Weight kg |
300 | 440 | 12-φ22 | 395 | 16 | 880 | 250 | 250 | 52 |
350 | 490 | 12-φ22 | 445 | 16 | 907 | 250 | 275 | 69 |
400 | 540 | 16-φ22 | 495 | 16 | 1010 | 250 | 300 | 77 |
450 | 595 | 16-φ22 | 550 | 16 | 1060 | 252 | 325 | 83 |
500 | 645 | 20-φ22 | 600 | 20 | 1180 | 300 | 370 | 112 |
600 | 755 | 20-φ26 | 705 | 20 | 1280 | 300 | 420 | 152 |
700 | 860 | 24-φ26 | 810 | 20 | 1390 | 300 | 470 | 193 |
800 | 975 | 24-φ30 | 920 | 20 | 1480 | 300 | 520 | 165 |
900 | 1075 | 24-φ30 | 1020 | 20 | 1590 | 350 | 600 | 335 |
1000 | 1175 | 28-φ30 | 1120 | 20 | 1680 | 350 | 650 | 375 |
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