4111 Safety Relief Valve

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Product Overview
Specifications
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Product Overview

Safety Relief Valve Series: A41H-16C, A41H-25, A41H-40, A41Y-64

a41h-16c、a41h-25、a41h-40、a41y-64、a41y-100、ka41h-16c
a41y-16p、a41y-25p、a41y-40p、a41y-64p、a41y-100p、ka41y-25p

a41y-16r、a41y-25r、a41y-40r、a41y-64r、a41y-100r、ka41y-25r

Application

A41H type is suitable for equipment or pipeline with working temperature ≤ 300 ℃, such as liquefied petroleum gas, air, water, etc. A41Y-P/R type is suitable for equipment or pipeline with working temperature ≤ 200 ℃ and corrosive media, as an overpressure protection device.
Connection flange standard according to JB/T..... The standard of connection flange is according to JB/T.94/series 1.

Certification

BasCo offers a full range of safety valve products, having obtained certifications such as TS, EAC, and type testing qualifications. It provides safe and reliable customized solutions and products tailored to users' actual working conditions.

Specifications

Main parts and materials

No.	Parts Name	A41H-C/KA41Y-C Materials	A41H-P/KA41Y-P	A41H-R/KA41Y-R
1	Valve body	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
2	Valve Seat	ZG2Cr13/1Cr18Ni9Ti	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
3	Adjustment ring	ZG2Cr13/1Cr18Ni9Ti	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
4	Valve	2Cr13/1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
5	Guide sleeve	ZG2Cr13/1Cr18Ni9Ti	ZG1Cr18Ni9Ti	ZG1Crl8Ni12Mo2Ti
6	Valve cover	ZG230-450	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
7	Spring	50CrVA	50CrVA coated fluoroplastic	50CrVA coated fluoroplastic
8	Valve stem	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
9	Adjusting screw	45	ZG1Cr1818Ni9Ti	2Cr13
10	Protective cover	ZG200-400	ZG200-400	ZG1Cr18Ni12Mo2Ti
	Sealing surface material	Surfacing D507	Surfacing Co-based cemented carbide

* The content is for reference only. Please contact us for more information.

Main External dimensions

Model	DN	D0	D	K	g	g1	b	f	f1	Z-Φd	DN'	D1	k1	g2	g'	b1	f'	f1'	Z1-Φd1	L	L1	H
A41H-16C A41Y-16P A41Y-16R KA41Y-16C KA41Y-16P	20	15	105	75	-	55	16	2	-	4-14	20	105	75	55	-	16	2	-	4-14	100	85	276
	25	20	115	85	-	65	16	2	-	4-14	25	115	85	65	-	16	2	-	4-14	100	85	276
	32	25	140	100	-	78	18	2	-	4-18	32	140	100	78	-	18	2	-	4-18	115	100	285
	40	32	150	110	-	85	18	3	-	4-18	40	150	110	85	-	18	3	-	4-18	120	110	292
	50	40	165	125	-	100	20	3	-	4-18	50	165	125	100	-	20	3	-	4-18	135	120	370
	65	50	185	145	-	120	20	3	-	4-18	65	185	145	120	-	20	3	-	4-18	140	130	375
	80	65	200	160	-	135	20	3	-	8-18	80	200	160	135	-	20	3	-	8-18	160	135	373
	100	80	220	180	-	155	22	3	-	8-18	100	220	180	155	-	22	3	-	8-18	170	160	513
	125	100	250	210	-	185	22	3	-	8-18	125	250	210	185	-	22	3	-	8-18	190	190	560
	150	125	285	240	-	210	24	3	-	8-23	150	285	240	210	-	24	3	-	8-23	205	195	570
	200	150	340	295	-	265	26	3	-	12-23	200	340	295	265	-	26	3	-	12-23	240	230	717
	250	200	405	355	-	320	30	3	-	12-26	250	405	355	320	-	30	3	-	12-26	350	320	940
	300	250	460	410	-	375	30	4	-	12-26	300	460	410	375	-	30	4	-	12-26	350	320	980
A41H-25 A41Y-25P A41Y-25R KA41Y-25 KA41Y-25P	20	15	105	75	-	55	16	2	-	4-14	20	105	75	55	-	16	2	-	4-14	100	85	276
	25	20	115	85	-	65	16	2	-	4-14	25	115	85	65	-	16	2	-	4-14	100	85	276
	32	25	140	100	-	78	18	2	-	4-18	32	140	100	78	-	18	2	-	4-18	115	100	285
	40	32	150	110	-	85	18	3	-	4-18	40	150	110	85	-	18	3	-	4-18	120	110	292
	50	40	165	125	-	100	20	3	-	4-18	50	165	125	100	-	20	3	-	4-18	135	120	370
	65	50	185	145	-	120	22	3	-	8-18	65	185	145	120	-	20	3	-	4-18	140	130	375
	80	65	200	160	-	135	24	3	-	8-18	80	200	160	135	-	20	3	-	8-18	160	135	373
	100	80	230	190	-	160	24	3	-	8-23	100	220	180	155	-	20	3	-	8-18	170	160	513
	125	100	270	220	-	188	28	3	-	8-26	125	250	210	185	-	22	3	-	8-18	190	190	560
	150	125	300	250	-	218	30	3	-	8-26	150	285	240	210	-	24	3	-	8-23	205	195	570
	200	150	360	310	-	278	34	3	-	12-26	200	340	295	265	-	26	3	-	12-23	240	230	717
	250	200	425	370	-	332	36	3	-	12-30	250	405	355	320	-	30	3	-	12-26	350	320	940
	300	250	485	430	-	390	40	4	-	16-30	300	460	410	375	-	30	4	-	12-26	350	320	980
A41H-40 A41Y-40P A41Y-40R KA41Y-40 KA41Y-40P	20	15	105	75	51	55	16	2	4	4-14	20	105	75	55	-	16	2	-	4-14	100	85	276
	25	20	115	85	58	65	16	2	4	4-14	25	115	85	65	-	16	2	-	4-14	100	85	276
	32	25	140	100	66	78	18	2	4	4-18	32	140	100	78	-	18	2	-	4-18	115	100	285
	40	32	150	110	76	85	18	3	4	4-18	40	150	110	85	-	18	3	-	4-18	120	110	292
	50	40	165	125	88	100	20	3	4	4-18	50	165	125	100	-	20	3	-	4-18	135	120	370
	65	50	185	145	110	120	22	3	4	8-18	65	185	145	120	-	20	3	-	4-18	140	130	375
	80	65	200	160	121	135	22	3	4	8-18	80	200	160	135	-	20	3	-	8-18	160	135	373
	100	80	235	190	150	160	24	3	4.5	8-23	100	220	180	155	-	22	3	-	8-18	170	160	513
	125	100	270	220	176	188	28	3	4.5	8-26	125	250	210	185	-	22	3	-	8-18	190	190	560
	150	125	300	250	204	218	30	3	4.5	8-26	150	285	240	210	-	24	3	-	8-23	205	195	570
	200	150	375	320	260	282	38	3	4.5	12-30	200	340	295	265	-	26	3	-	12-23	240	230	717
	250	200	450	385	313	345	42	3	4.5	12-34	250	405	355	320	-	30	3	-	12-26	350	320	940
	300	250	515	450	364	408	46	4	4.5	16-34	300	460	410	375	-	30	4	-	12-26	350	320	980

Model	DN	D0	D	K	g	g1	b	f	f1	Z-Φd	DN'	D1	k1	g2	g'	b1	f'	f1'	Z1-Φd1	L	L1	H
A41H-64 A41Y-64 A41Y64 A41Y-64R	20	15	130	90	51	68	20	2	4	4-18	20	105	75	55	51	16	2	4	4-14	100	95	268
	25	20	140	100	58	78	22	2	4	4-18	25	115	85	65	58	16	2	4	4-14	100	95	268
	32	25	155	110	66	82	24	2	4	4-23	32	140	100	78	66	18	2	4	4-18	115	105	279
	40	32	170	125	76	95	24	3	4	4-23	40	150	110	85	76	18	3	4	4-18	135	115	330
	50	40	180	135	88	105	26	3	4	4-23	50	165	125	100	88	20	3	4	4-18	160	125	360
	65	50	205	160	110	130	28	3	4	8-23	65	185	145	120	110	22	3	4	8-18	175	160	503
	80	65	215	170	121	140	30	3	4	8-23	80	200	160	135	121	22	3	4	8-18	175	160	498
	100	80	250	200	150	168	32	3	4.5	8-26	100	235	190	160	150	24	3	4	8-23	190	180	530
	150	100	345	280	204	240	38	3	4.5	8-34	150	300	250	218	204	30	3	4	8-26	280	260	657
A41H-100 A41Y-100 A41Y-100P A41Y-100R	20	15	130	90	51	68	20	2	4	4-18	20	105	75	55	51	16	2	4	4-14	100	95	268
	25	20	140	100	58	78	22	2	4	4-18	25	115	85	65	58	16	2	4	4-14	100	95	268
	32	25	155	110	66	82	24	2	4	4-23	32	140	100	78	66	18	2	4	4-18	115	105	279
	40	32	170	125	76	95	24	3	4	4-23	40	150	110	85	76	18	3	4	4-18	135	115	330
	50	40	180	135	88	105	26	3	4	4-23	50	165	125	100	88	20	3	4	4-18	160	125	360
	65	50	205	160	110	130	28	3	4	8-23	65	185	145	120	110	22	3	4	8-18	175	160	503
	80	65	215	170	121	140	30	3	4	8-23	80	200	160	135	121	22	3	4	8-18	175	160	498
	100	80	250	200	150	168	32	3	4.5	8-26	100	235	190	160	150	24	3	4	8-23	190	180	530
	150	100	345	280	204	240	38	3	4.5	8-34	150	300	250	218	204	30	3	4	8-26	280	260	657

* The content is for reference only. Please contact us for more information.