4125 Safety Relief Valve

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Product Overview
Specifications
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Product Overview

Series: A28H-10, A28Y-10P, A28Y-10R8

a28h-10、a28y-10p、a28y-10r8、a28y-25r8、a28y-40r8、a28h-16、a28y-16p、a28y-16r8、a28y-25r8、a28y-40r8

Application

A28H type is suitable for equipment and pipeline of water, air, steam and other media with working temperature ≤ 200℃.

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.	Part Name	A28H Material	A28Y-P material	A28Y-R8 Material
1	Valve body	HT305	ZG1Cr18Ni9Ti	CF8M
2	Valve seat	ZG1Cr18Ni9Ti CF8M	ZG1Cr18Ni9Ti	CF8M
3	Adjusting ring	2cr13	1Cr18Ni9Ti	316
4	Valve	2cr13	1Cr18Ni9Ti	316
5	Spring	50CrVA	50CrVA coated fluoroplastic	50CrVA coated fluoroplastic
6	Valve	2Cr13	2Cr13	316
7	Adjustment screw	45	2Cr13	316
8	Protective cover	ZG200-400	ZG200-400	CF8M
	Sealing surface material	Overlay D507	Surfacing co-based hard alloy

Main external size

DN	Dimension
DN	D0	Rc	L	L1	G	H
15	10	1-2	37	62	3/4'	189
20	12	3/4'	40	65	1'	196
25	15	1'	45	72	11/4'	277
32	20	11/4'	55	85	11/2'	312
40	25	11/2'	67	100	2'	322
50	32	2'	76	112	21/2'	348
65	40	21/2'	110	135	3'	370
80	50	3'	110	145	4'	410