A27H Spring micro opening safety valveDetailed product description：

Product details:
A27H type is suitable for equipment or pipelines with working temperatures ≤ 200 ℃ for media such as water, air, steam, etc. A27Y is suitable for equipment or pipelines with corrosive media working at temperatures ≤ 200 ℃, as an overpressure protection device.

Main component materials

NO.	Part Name	A27H material	A27W-P material	A27W-R material
one	valve body	HT350	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
two	valve seat	thirty-five	ZG1Cr18Ni9Ti	ZG1Cr18Ni9Ti
three	Adjustment Circle	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
four	valve disc	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
five	spring	50CrVA	50CrVA coated fluoroplastic	50CrVA coated fluoroplastic
six	valve stem	2Cr13	2Cr13	1Cr18Ni9Ti
seven	Adjust the screw	forty-five	2Cr13	1Cr18Ni9Ti
eight	protective cover	ZG200-400	ZG200-400	1Cr18Ni9Ti
	Sealing surface material	Welding D507	Welding Co based Hard Alloy

External dimensions and connection dimensions

Nominal Diameter	Size
	do	Rc	L	L1	G	H
fifteen	ten	1/2"	forty	sixty-five	1/2"	one hundred and thirty-five
twenty	fifteen	3/4"	forty-five	seventy	3/4"	one hundred and forty
twenty-five	twenty	1"	forty-five	seventy-six	1"	one hundred and fifty-five
thirty-two	twenty-five	11/4"	fifty-five	eighty-five	11/4"	one hundred and seventy
forty	thirty-two	11/2"	fifty-five	eighty-five	11/2"	three hundred and ten
fifty	forty	2"	sixty-seven	one hundred	2"	three hundred and twenty-two
sixty-five	fifty	21/2"	seventy-six	one hundred and twelve	21/2"	three hundred and forty-four
eighty	sixty-five	3"	one hundred and ten	one hundred and thirty-five	3"	three hundred and ninety-five

A27H/W-15C/P Spring Micro opening Safety Valve