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Home > Products > Relief valve > Safety return valveAH42F

Description Material Performance Product Size Specifications

The valve is suitable for liquefied petroleum gas pump outlet liquid outlet pipeline, for the safe return of overpressure medium, standard reflux pressure greater than 0.5MPa liquefied petroleum gas can automatically back into the tank. May adjust the backflow pressure difference is 0.3~0.8MPa, or according to the user request to determine, when the pump pressure exceeds the specified value, the valve automatically opens, and play a safe return, to ensure the safe operation of the equipment and pipeline.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.

Valve body, valve cover	Valve seat, disc, valve stem	Spring	Sealing surface
WCB	Chrome stainless steel	Chrome vanadium steel	Teflon

Nominal pressure	Shell test	Seal test	Opening pressure	Applicable medium	Suitable temperature
1.6	2.4	0.9PK	User determination	Liquefied gas, natural gas Such as non corrosive medium	-40~+80℃
2.5	3.75
4.0	4.4

Nominal diameter DN(mm)	AH42F - 16C PType main connection dimensions and dimensions（mm）																	weight （kg）
	L	L1	D	D1	D2	b	f	Z-фd	DN，	D，	D1，	D2，	b，	f，	Z-фd	H	do
25	100	95	115	85	65	14	2	4-14	32	140	100	78	16	3	4-18	250	15	12
32	115	100	140	100	78	16	2	4-18	40	150	110	85	16	3	4-18	280	20	14
40	120	110	150	110	85	16	3	4-18	50	165	125	100	16	3	4-18	290	25	16
50	135	120	165	125	100	16	3	4-18	65	185	145	120	18	3	4-18	341	32	21
80	170	135	200	160	135	18	3	8-18	100	220	180	155	20	3	8-18	470	50	43
100	205	160	220	180	155	20	3	8-18	125	250	210	185	22	3	8-18	580	65	65
150	250	210	285	240	210	24	3	8-22	175	315	270	240	26	3	8-23	670	100	110

Design and manufacture: GB/T12243
Flange connection: JB/T79-94, GB9113-2000
Structure length: GB12221-89

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