Closed fully open safety valve with heat sink A40Y

This valve is suitable for media with a temperature not exceeding 450 ℃. If no radiator is installed, it can withstand a temperature not exceeding 250 ℃ without the need for any external force to open and close. With the set pressure value we set, when the pressure exceeds our set pressure value, the valve will automatically open and release the pressure. When the pressure is below the set pressure, this valve will automatically close. This valve utilizes the elasticity of Spring to control pressure and is a valve that protects pipelines.

The opening height is one fourth of the throat diameter, and full opening type is more commonly used for media with gas.

Product drawing

Product drawing.png

Product dimensions

model	DN	do	D	K	g	g1	b	f	f1	Z-Ød	DN'	D1	K1	g3	g2	b1	f'	f1'	z1-Ød1	L	L1	≈H
SA40Y-16 C/P/I	20	15	105	75		55	16	2		4-14	25	115	85		65	16	2		4-14	110	95	518
	25	16	115	85		65	16	2		4-14	32	140	100		78	18	2		4-18	110	95	518
	32	20	140	100		78	18	2		4-18	40	150	110		85	18	3		4-18	115	100	518
	40	25	150	110		85	18	3		4-18	50	165	125		100	20	3		4-18	120	110	579
	50	32	165	125		100	20	3		4-18	65	185	145		120	20	3		4-18	135	120	639
	65	40	185	145		120	20	3		4-18	80	200	160		135	20	3		8-18	160	140	671
	80	50	200	160		135	20	3		8-18	100	220	180		155	22	3		8-18	170	135	676
	100	65	220	180		155	22	3		8-18	125	250	210		185	22	3		8-18	195	175	787
	125	80	250	210		185	22	3		8-18	150	285	240		210	24	3		8-23	210	190	977
	150	100	285	240		210	24	3		8-23	175	310	270		240	26	3		8-23	255	230	1035
	200	125	340	295		265	26	3		12-23	250	405	355		320	30	3		12-26	300	260	1193
SA40Y-25 C/P/I	20	15	105	75		55	16	2		4-14	25	115	85		65	16	2		4-14	110	95	518
	25	16	115	85		65	16	2		4-14	32	140	100		78	18	2		4-18	110	95	518
	32	20	140	100		78	18	2		4-18	40	150	110		85	18	3		4-18	115	100	518
	40	25	150	110		85	18	3		4-18	50	165	125		100	20	3		4-18	120	110	579
	50	32	165	125		100	20	3		4-18	65	185	145		120	20	3		4-18	135	120	639
	65	40	185	145		120	22	3		8-18	80	200	160		135	20	3		8-18	160	140	671
	80	50	200	160		135	22	3		8-18	100	220	180		155	22	3		8-18	170	135	676
	100	65	230	190		160	24	3		8-23	125	250	210		185	22	3		8-18	195	175	787
	125	80	270	220		188	28	3		8-26	150	285	240		210	24	3		8-23	210	190	977
	150	100	300	250		218	30	3		8-26	175	310	270		240	26	3		8-23	255	230	1035
	200	125	360	310		278	34	3		12-26	250	405	355		320	30	3		12-26	300	260	1193
SA40Y-40 C/P/I	20	15	105	75	51	55	16	2	4	4-14	25	115	85		65	16	2		4-14	110	95	518
	25	16	115	85	58	65	16	2	4	4-14	32	140	100		78	18	2		4-18	110	95	518
	32	20	140	100	66	78	18	2	4	4-18	40	150	110		85	18	3		4-18	115	100	518
	40	25	150	110	76	85	18	3	4	4-18	50	165	125		100	20	3		4-18	120	110	579
	50	32	165	125	88	100	20	3	4	4-18	65	185	145		120	20	3		4-18	135	120	639
	65	40	185	145	110	120	22	3	4	8-18	80	200	160		135	20	3		8-18	160	140	671
	80	50	200	160	121	135	22	3	4	8-18	100	220	180		155	22	3		8-18	170	135	676
	100	65	235	190	150	160	24	3	4.5	8-23	125	250	210		185	22	3		8-18	195	175	787
	125	80	270	220	176	188	28	3	4.5	8-26	150	285	240		210	24	3		8-23	210	190	977
	150	100	300	250	204	218	30	3	4.5	8-26	175	310	270		240	26	3		8-23	255	230	1035
SA40Y-64 C/P/I	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	96	85	384
	25	16	140	100	58	78	22	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	384
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	396
	40	25	170	125	76	95	24	3	4	4-23	50	165	125	88	100	20	3	4	4-18	130	120	426
	50	32	180	135	88	105	26	3	4	4-23	65	185	145	110	120	22	3	4	8-18	135	130	504
	65	40	205	160	110	130	28	3	4	8-23	80	200	160	121	135	22	3	4	8-18	175	160	613
	80	50	215	170	121	140	30	3	4	8-23	100	235	190	150	160	24	3	4.4	8-23	175	160	603
	100	65	250	200	150	168	32	3	4.5	8-26	125	270	220	176	188	28	3	4.5	8-25	195	195	813
	150	100	345	280	204	240	38	3	4.4	8-34	200	375	320	260	282	38	3	4.5	12-30	280	265	1064
SA40Y-100 C/P/I	20	10	125	90	51	68	22	2	4	4-18	25	115	85	58	65	16	2	4	4-14	96	85	384
	25	16	140	100	58	78	24	2	4	4-18	32	140	100	66	78	18	2	4	4-18	110	100	384
	32	20	155	110	66	82	24	2	4	4-23	40	150	110	76	85	18	3	4	4-18	130	110	396
	40	25	170	125	76	95	26	3	4	4-23	50	165	125	88	100	20	3	4	4-18	130	120	426
	50	32	195	145	88	112	28	3	4	4-26	65	185	145	110	120	22	3	4	8-18	135	130	504
	65	32	220	170	110	138	32	3	4	8-26	80	200	160	121	135	22	3	4	8-18	175	160	613
	80	40	230	180	121	148	34	3	4	8-26	100	235	190	150	160	24	3	4.5	8-23	175	160	603
	100	50	265	210	150	172	38	3	4.5	8-30	125	270	220	176	188	28	3	4.5	8-25	195	195	813
	150	80	355	290	204	250	46	3	4.5	12-34	200	375	320	260	282	38	3	4.5	12-30	280	265	1064

Technical Documentation

1.execution standard：GB/T 12243-2021

2.Structural length standard：GB/T12221-2005

3.Flange Standard：GB/T9113.1-2000

4.Test Standard：GB/T13927-2022

Product Parts List

serial number	name	A40Y-Cmaterial	A40Y-Pmaterial	A40Y-Imaterial
1	valve body	WCB	CF8	WC6
2	valve seat	20Cr13	304	304
3	Adjustment Circle	20Cr13	304	304
4	valve disc	20Cr13	304	304
5	guide bushing	20Cr13	304	304
6	radiator	ZG230-450	ZG230-450	ZG230-450
7	valve cover	ZG230-450	ZG230-450	ZG230-450
8	spring	50CrVA	50CrVACovering fluoroplastic	50CrVACovering fluoroplastic
9	valve stem	20Cr13	304	20Cr13
10	adjusting screw	45	304	20Cr13
11	valve cap	ZG200-400	ZG200-400	ZG200-400
12	Sealing surface material	Welding Co based Hard Alloy

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