A21H/Y/W/F spring micro-open closed safety valve

Product Category：SAFETY VALVE
Product Name：A21H/Y/W/F spring micro-open closed safety valve
Product Tag：spring micro-open closed safety valve
Update Date：2021/9/1 9:53:53
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Note: Our Products Can Be Customized According To Customers' Needs. In Addition To National Standards,We Can Design And Manufacture According To American Standards, Japanese Standards, German Standards, Russian Standards, British Standards And So On.

Brief introduction of external thread spring micro-opening stainless steel safety valve(A21H)

A21 Series

A21F-16C A21H-16C A21H-40 A21H-64 A21Y-100 A21H-160 A21W-16P A21W-40P A21F-40P A21W-64P A21W-100P A21W-160P KA21Y-16C KA21Y-16P A21Y-16R A21Y-40R A21Y- 64R A21Y-100R A21Y-160R

A21H spring micro-opening type external thread safety valve is suitable for equipment and pipelines with air, nitrogen, petroleum gas and other media whose working temperature is ≤200℃. A21W type is suitable for equipment and pipelines with working temperature ≤200℃ and containing corrosive gas or liquid. Type A21F is suitable for equipment and pipelines such as liquefied petroleum gas and petroleum gas whose working temperature is ≤200℃, as an overpressure protection device.

Spring inching stainless steel valve main part materials Explanation of materials for main parts
NO.	Name of part	A21H-C/A21F KA21Y-C Materials	A21W-P/A21F-P KA21Y-P Materials	A21Y-R Materials
1	Union	20	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
2	Union nut	35	2Cr13	1Cr18Ni9Ti
3	Nozzle	35	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
4	Body	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
5	Disc	2Cr13/2Cr13+PTFE	1Cr18Ni9Ti/1Cr18nI9Ti+PTFE	1Cr18Ni12Mo2Ti
6	Spring washer	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
7	Spring	50CrVA	50CrVA Coated Teflon	50CrVA Coated Teflon
8	Locking nut	Q235-A	2Cr13	1Cr18Ni9Ti
9	Spring guide	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
10	Adjusting nut	Q235-A	2Cr13	1Cr18Ni12Mo2Ti
	Sealing surface of material	"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body

Dimensions (mm) ofspring micro-opening stainless steel safety valve
Type	(DN) Nominal diameter	do	d	Do	M	d1	D1	L	L1	H
KA21Y-16C A21H-16C A21H-40 A21W-16P A21W-40P KA21Y-16P	15	12	15	20	M27 1.5	G1/2"	30	35	76	66
	20	16	20	25	M33 1.5	G3/4"	34	40	87	68
	25	18	25	31	M39 1.5	G1"	40	50	100	105
A21Y-64 A21Y-64P A21Y-100 A21Y-100P	15	10	15	25	M39 1.5	G1"	44	50	100	66
	20	10	20	31	M39 1.5	G1"	44	50	100	68
	25	12	25	31	M39 1.5	G1"	44	50	100	105
A21W-160 /160P	15	8	20	/	M24 2	G1"	44	50	100	261
	20	8	25	/	M33 2	G1"	44	50	100	261
	25	8	28	/	M36 2	G1"	44	50	100	285

A21H spring micro-opening type external thread safety valve

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A21H/Y/W/F spring micro-open closed safety valve

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