Closed spring fully open slow closing safety valve AH42F

AH42F型泄流回流阀液化石油气stainless steel全启式泄压阀概述

AH42F型泄流回流阀适用于液化石油气罐泵出品的液相回液管道上，当设备和管路内压力超过允许值时，阀门自动开启，继而全量排放，当压力降低到规定值时，阀门自动关闭，保证设备正常运行。

AH42F型泄流回流阀液化石油气stainless steel全启式泄压阀适用范围

该泄流阀适用于城建、化工、冶金、石油、制药、食品、饮料、环保。

Product drawing

Product drawing.png

Product dimensions

model	path	do	D	K	g	g1	b	f	f1	Z-?d	DN'	D1	K1	g2	b1	f'	Z1-?d1	L	L1	≈H
AH42F-16C	20	15	105	75		55	16	2		4-14	25	115	85	65	16	2	4-14	110	95	378
	25	16	115	85		65	16	2		4-14	32	140	100	78	18	2	4-18	110	95	378
	32	20	140	100		78	18	2		4-18	40	150	110	85	18	3	4-18	115	100	378
	40	25	150	110		85	18	3		4-18	50	165	125	100	20	3	4-18	120	110	406
	50	32	165	125		100	20	3		4-18	65	185	145	120	20	3	4-18	135	120	450
	65	40	185	145		120	20	3		4-18	80	200	160	135	20	3	8-18	160	140	520
	80	50	200	160		135	20	3		8-18	100	220	180	155	22	3	8-18	170	135	525
	100	65	220	180		155	22	3		8-18	125	250	210	185	22	3	8-18	195	175	690
	125	80	250	210		185	22	3		8-18	150	285	240	210	24	3	8-23	210	190	780
	150	100	285	240		210	24	3		8-23	175	310	270	240	26	3	8-23	255	230	838
	200	125	340	295		265	26	3		12-23	250	405	355	320	30	3	12-26	300	260	992
	250	150	405	355		320	30	3		12-26	300	460	410	375	30	4	12-26	350	320	1266
	300	220	460	410		375	30	4		12-26	400	580	525	485	36	4	16-30	370	350	1283
	350	250	520	470		435	34	4		16-26	500	715	650	608	44	4	20-34	500	450	1520
	400	280	580	525		485	36	4		16-30	500	715	650	608	44	4	20-34	500	450	1530
AH42F-25	20	15	105	75		55	16	2		4-14	25	115	85	65	16	2	4-14	110	95	378
	25	16	115	85		65	16	2		4-14	32	140	100	78	18	2	4-18	110	95	378
	32	20	140	100		78	18	2		4-18	40	150	110	85	18	3	4-18	115	100	378
	40	25	150	110		85	18	3		4-18	50	165	125	100	20	3	4-18	120	110	406
	50	32	165	125		100	20	3		4-18	65	185	145	120	20	3	4-18	135	120	450
	65	40	185	145		120	22	3		8-18	80	200	160	135	20	3	8-18	160	140	520
	80	50	200	160		135	22	3		8-18	100	220	180	155	22	3	8-18	170	135	525
	100	65	230	190		160	24	3		8-23	125	250	210	185	22	3	8-18	195	175	690
	125	80	270	220		188	28	3		8-26	150	285	240	210	24	3	8-23	210	190	780
	150	100	300	250		218	30	3		8-26	175	310	270	240	26	3	8-23	255	230	838
	200	125	360	310		278	34	3		12-26	250	405	355	320	30	3	12-26	300	260	992
	250	150	425	370		332	36	3		12-30	300	460	410	375	30	4	12-26	350	320	1266
	300	220	485	430		390	40	4		16-30	400	580	525	485	36	4	16-30	370	350	1283
AH42F-40	20	15	105	25	51	55	16	2	4	4-14	25	115	85	65	16	2	4-14	110	95	378
	25	16	115	85	58	65	16	2	4	4-14	32	140	100	78	18	2	4-18	110	95	378
	32	20	140	100	66	78	18	2	4	4-18	40	150	110	85	18	3	4-18	115	100	378
	40	25	150	110	76	85	18	3	4	4-18	50	165	125	100	20	3	4-18	120	110	406
	50	32	165	125	88	100	20	3	4	4-18	65	185	145	120	20	3	4-18	135	120	450
	65	40	185	145	110	120	22	3	4	8-18	80	200	160	135	20	3	8-18	160	140	520
	80	50	200	160	121	135	22	3	4	8-18	100	220	180	155	22	3	8-18	170	135	525
	100	65	235	190	150	160	24	3	4.5	8-23	125	250	210	185	22	3	8-18	195	175	690
	125	80	270	220	176	188	28	3	4.5	8-26	150	285	240	210	24	3	8-23	210	190	780
	150	100	300	250	204	218	30	3	4.5	8-26	175	310	270	240	26	3	8-23	255	230	838
	200	125	375	320	260	282	38	3	4.5	12-30	250	405	355	320	30	3	12-26	300	260	992
	250	150	450	385	313	345	42	3	4.5	12-34	300	460	410	375	30	4	12-26	350	320	1266

Technical Documentation

1.execution standard：GB/T 12243-2021

2.Structural length standard：GB/T12221-2005

3.Flange Standard：GB/T9113.1-2000

4.试验标准：GB/T13927-2022

Product Parts List

serial number	name	AH42F-C A42F-C material
1	valve seat	20Cr13
2	valve body	WCB
3	Adjustment Circle	20Cr13
4	Recoil plate	20Cr13
5	valve disc	20Cr13+PTFE
6	guide bushing	20Cr13
7	valve cover	25#
8	spring	50CrVA
9	valve stem	20Cr13
10	adjusting screw	45#
11	valve cap	ZG200-400

Prev：Parallel safety reflux valve AHN42F-P25

Next：Closed spring fully open safety valve A42F

Related Information