Special valves series for gas transportation

Tank lorry emergency cut-off valve QGJ43F - 25

Product Features

Apply to liquefied petroleum gas or liquid ammonia tank liquid phase and gas phase on the pipeline, when loading or unloading operation of spill, a manual for emergency cut stop leakage.
When there is a fire, the high temperature melt easily roasting plug, the valve automatically shut down, the safety protection.

Technical parameters

Nominal pressure Mpa	2.5
Shell test pressure Mpa	3.75
Seal test pressure Mpa	2.75
Low pressure sealing pressure Mpa	0.1
Suitable temperature	- 40ºC to + 50ºC
Applicable medium	Liquefied petroleum gas, liquid ammonia, etc
Maximum velocity	5-7m/S
Fusible plug melting temperature	75ºC + / - 5ºC
Oil cylinder pressure	4.0MPa
Manufacturing standards	JB/T9094-1999

The major parts material

The valve body	The valve stem	The disc	spring	gasket
WCB	20Cr13	20Cr13	50CrVA��1Cr18Ni9	PTFE

Tank lorry emergency cut-off valve QGJ43F nominal pressure PN2.5 MPa shape size and the connection size

DN	L	D	D1	D2	b	f	Z - phi d	DN’	D’	D1’	D2’	b’	f’	Z - phi d '	H
25	106	115	85	65	16	3	4-14	50	165	125	99	20	3	4 - phi 18	253
50	135	165	125	99	20	3	4 - phi 18	80	200	160	132	24	3	8 - phi 18	310

Special valves series for gas transportation

Tank lorry emergency cut-off valve QGJ43F - 25

Product Features

Technical parameters

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