Safety valve FA72W series

Application
AY42H and A802Y safety relief valves can be used on the pipelines of high-pressure water injection pump stations as overpressure protection devices.

Product Introduction

Main component materials

Serial number	Part name	Material
Serial number	Part name	FA72W-P	FA72W-R
1	Valve body	ZG1Cr18Ni9Ti	ZG1Cr18Ni2Mo2Ti
2	Valve seat	1Cr18Ni9Ti	ZG1Cr18Ni2Mo2Ti
3	Adjustment ring	1Cr18Ni9Ti	1Cr18Ni2Mo2Ti
4	Valve cover	ZG1Cr18Ni9Ti	1Cr18Ni9Ti
5	Valve stem	1Cr18Ni9Ti	1Cr18Ni2Mo2Ti
6	Spring	50CrVA	50CrVA coated with fluoroplastic

Main dimensions

Nominal pressure PN(MPa)	Nominal diameter DN(mm)	Dimensions (mm)
Nominal pressure PN(MPa)	Nominal diameter DN(mm)	d₀	D	H
1.0	25	20	Φ115	210
	32	25	Φ140	210
	40	32	Φ150	210
	50	40	Φ165	215
	65	40	Φ185	240
	80	65	Φ200	280
	100	65	Φ220	280
	150	100	Φ285	320
	200	150	Φ340	360

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