A61H-160/320/160P/320P Spring micro opening safety valveDetailed product description：

A61H-160/320/160P/320P spring micro opening safety valve is suitable for equipment and pipelines with working temperature ≤ 200 ℃ for media such as air, ammonia, petroleum gas, etc. A61Y-160P and A61Y-320P are suitable for equipment and pipelines with corrosive gases or liquids with temperature ≤ 200 ℃, as overpressure protection devices.

Main component materials:

NO.	Part Name	A61H-C A61Y-C material	A61Y-P material
one	joint	twenty	1Cr18Ni9Ti
two	coupling nut	thirty-five	1Cr18Ni9Ti
three	valve seat	2Cr13	1Cr18Ni9Ti
four	valve body	35/35CrMoA	1Cr18Ni9Ti
five	valve disc	2Cr13	1Cr18Ni9Ti
six	guide bushing	2Cr13	1Cr18Ni9Ti
seven	spring	50CrVA	50CrVA coated fluoroplastic
eight	valve stem	2Cr13	2Cr13
nine	valve cover	ZG230-450	1Cr18Ni9Ti
ten	adjusting screw	forty-five	2Cr13
eleven	valve cap	ZG200-400	1Cr18Ni9Ti
	Sealing surface material	Y-type cladding Co based hard alloy, H-type cladding D507

A61H-160/320/160P/320P Spring Micro opening Safety Valve Dimensions and Connection Dimensions:

Nominal Pressure	Nominal Diameter	Size
		do	D	D1	D2	L	L1	H
sixteen	ten	six	seventeen	fourteen	twelve	one hundred and fifteen	one hundred and thirty-five	seventy-eight
	fifteen	eight	twenty-two	eighteen	sixteen	one hundred and fifteen	one hundred and thirty-five	eighty-five
	twenty	ten	twenty-eight	twenty-two	twenty	one hundred and fifteen	one hundred and thirty-five	one hundred and thirty-five
	twenty-five	twelve	thirty-five	twenty-six	twenty-four	one hundred and sixty	one hundred and sixty-five	one hundred and forty-two
thirty-two	ten	six	twenty-two	fourteen	twelve	one hundred and fifteen	one hundred and thirty-five	eighty
	fifteen	eight	twenty-five	seventeen	fifteen	one hundred and fifteen	one hundred and thirty-five	ninety
	twenty	ten	thirty	twenty-two	twenty	one hundred and fifteen	one hundred and thirty-five	one hundred and forty
	twenty-five	twelve	thirty-eight	twenty-six	twenty-four	one hundred and sixty	one hundred and sixty-five	one hundred and forty-eight

A61H-160/320/160P/320P Spring Micro opening Safety Valve