Pop-up vent valve

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Pop-up vent valve

Model: XB-42-II
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

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產(chǎn)品詳細(xì)

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