Tank Truck Emergency Shut-Off Valve QGY43F-25

Features

Features:
It is suitable for the liquid and gas phase pipelines of liquefied gas or liquid ammonia tank trucks. When a large amount of leakage occurs during loading or unloading operations, it can be urgently cut off to stop the leakage.
When a fire occ

Technical Parameters

Nominal pressure Mpa	2.5
Shell test pressure Mpa	3.75
Sealing test pressure Mpa	2.75
Low pressure sealing pressure Mpa	0.1
Applicable temperature	-40℃-+50℃
Applicable media	Liquefied petroleum gas, liquid ammonia, etc.
Maximum flow rate	5-7m/S
Fusible plug melting temperature	75℃±5℃
Cylinder working pressure	4.0MPa
Manufacturing standards	JB/T9094-1999

Main parts materials

Valve body	Valve stem	Valve disc	spring	Gasket	Cylinder	Sealing ring
WCB	20Cr13	20Cr13	50CrVA，1Cr18Ni9	PTFE	20#	NBR

Tank truck emergency shut-off valve GQY43F nominal pressure PN2.5MPa dimensions and connection dimensions

DN	L	D	D1	D2	b	f	Z-φd	DN’	D’	D1’	D2’	b’	f’	Z-φd’	H
25	106	115	85	65	16	3	4-φ14	50	165	125	99	20	3	4-φ18	253
50	135	165	125	99	20	3	4-φ18	80	200	160	132	24	3	8-φ18	310

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