explosion vent valve
technical parameter
product model: xb-42/61
nominal diameter: dn300~1000mm
nominal pressure: 0.1-0.6mpa
applicable temperature: ≤200℃
main material: carbon steel, aluminum alloy
applicable medium: air, gas and other explosive gases
installation form: butt welding, flange
flange standard: gb/t9115-98
connection size: gb2555-81
testing standard: gb/t13927-92
product overview
the explosion vent valve is composed of valve body, bursting diaphragm, supporter, valve cover, heavy hammer and other parts. the bursting disc is installed in the middle of the holder and connected with the valve body by bolts. when the system is overpressured, the rupture disc ruptures. instantaneous pressure relief, the valve cover pops up and resets under the action of gravity. this valve needs to lift the valve body and holder upwards when replacing the bursting disc. the bursting membrane is prepared by the user according to the process characteristics, and is mainly used in the fields of building materials, metallurgy, petroleum, chemical industry and so on.
the main technical parameters
nominal diameter | dn(mm) | 300~1000 |
applicable to burst calculation pressure (absolute) | pn(mpa) | 0.1 |
strength test pressure | 1.5 | |
applicable temperature | ≤200℃ | |
applicable media | compressed explosive gas | |
main outline and connection size
| dn | d | n-φd | d1 | b | l | l1 | h | wt (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 |