Open type wrench spring micro opening external thread safety valve A27H

This valve is suitable for equipment or pipelines with corrosive media operating at temperatures ≤ 200 ℃, as an overpressure protection device.

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	A27Hmaterial	A27W-Pmaterial	A27W-Rmaterial
1	valve body	HT350	CF8	CF8M
2	valve seat	35	CF8	CF8M
3	Adjustment Circle	20Cr13	304	316
4	valve disc	20Cr13	304	316
5	spring	50CrVA	50CrVACovering fluoroplastic	50CrVACovering fluoroplastic
6	valve stem	20Cr13	20Cr13	304
7	adjusting screw	45	20Cr13	304
8	protective cover	ZG200-400	ZG200-400	CF8
9	Sealing surface material	Welding D507	Welding Co based Hard Alloy

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