A42Y Spring fully open closed high-pressure safety valveDetailed product description：

A42Y spring fully open closed high-pressure safety valve, A42Y-160/320 is suitable for equipment or pipelines with working temperature ≤ 200 ℃ for media such as air, nitrogen hydrogen mixture, etc.
A42Y-160P/320P and A42Y-160R/320R are suitable for equipment or pipelines with corrosive media operating at temperatures ≤ 200 ℃, as overpressure protection devices.

Connect the flange according to the standard JB/T2769-92.
A42Y high-pressure safety valve external dimensions and connection dimensions:

Model

Nominal Diameter

do

d

M

K

D

Z-?d

b

d1

M1

K1

D1

Z1-?d1

b1

L

L1

≈H

A42Y-160

fifteen

eight

twenty

M34×2

sixty

ninety-five

3-18

twenty

twenty-nine

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

ninety-five

one hundred

two hundred and twenty

twenty

eight

twenty-seven

M33×2

sixty-eight

one hundred and five

3-18

twenty

twenty-nine

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

ninety-five

one hundred

two hundred and twenty

twenty-five

fourteen

twenty-eight

M33×2

sixty-eight

one hundred and five

3-18

twenty

fifty

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

one hundred and fifty

one hundred and fifty

two hundred and eighty

thirty-two

fifteen

thirty-seven

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

fifty

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

one hundred and fifty

one hundred and fifty

three hundred and ninety

forty

twenty

forty-seven

M52×2

one hundred and fifteen

one hundred and sixty-five

6-26

twenty-eight

sixty-five

M80×3

one hundred and forty-five

two hundred

6-29

forty

one hundred and eighty

one hundred and eighty

four hundred and ninety-five

fifty

twenty-five

fifty-nine

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

eighty

M100×3

one hundred and seventy

two hundred and twenty-five

6-33

fifty

one hundred and sixty-five

one hundred and sixty-five

four hundred

A42Y-320

fifteen

eight

twenty-seven

M33×2

sixty-eight

one hundred and five

3-18

twenty

twenty-nine

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

ninety-five

one hundred

two hundred and twenty

twenty

eight

thirty

M33×2

seventy-five

one hundred and ten

3-18

twenty-two

twenty-nine

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

ninety-five

one hundred

two hundred and twenty

twenty-five

fourteen

thirty-five

M42×2

eighty

one hundred and fifteen

4-18

twenty-two

fifty

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

one hundred and fifty

one hundred and fifty

two hundred and eighty

thirty-two

fifteen

forty-one

M48×2

ninety-five

one hundred and thirty-five

4-22

twenty-five

fifty

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

one hundred and fifty

one hundred and fifty

three hundred and ninety

forty

twenty

fifty-eight

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

sixty-five

M80×3

one hundred and forty-five

two hundred

6-29

forty

one hundred and eighty

one hundred and eighty

four hundred and ninety-five

fifty

twenty-five

seventy

M80×3

one hundred and forty-five

two hundred

6-29

forty

eighty

M100×3

one hundred and seventy

two hundred and twenty-five

6-33

fifty

one hundred and sixty-five

one hundred and sixty-five

four hundred

A42Y-400

thirty-two

fifteen

forty-one

M48×2

ninety-five

one hundred and thirty-five

4-22

twenty-five

fifty

M64×3

one hundred and fifteen

one hundred and sixty-five

6-26

thirty-two

one hundred and fifty

one hundred and fifty

three hundred and ninety-seven

A42Y High Pressure Safety Valve Main Component Materials:

NO.	Part Name	A42Y-160 A42Y-320 material	A42Y-160P A42Y-320P material	A42Y-160R A42Y-320R material
one	flange	35/35CrMoA	2Cr13	1Cr18Ni12Mo2Ti
two	valve seat	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
three	valve body	forty	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
four	Adjustment Circle	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
five	valve disc	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
six	Recoil plate	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
seven	guide bushing	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
eight	valve cover	ZG230-450	ZG230-450	ZG230-450
nine	valve stem	2Cr13	1Cr18Ni9Ti	1Cr18Ni9Ti
ten	spring	50CrVA	50CrVA coated fluoroplastic	50CrVA coated fluoroplastic
eleven	Adjust the screw	forty-five	2Cr13	2Cr13
twelve	valve cap	ZG200-400	ZG200-400	ZG200-400
	Sealing surface material	Welding Co based Hard Alloy