Part Name

Valve body and valve cover

Seal ring

filler

gland

valve stem

Gasket

J41B-25C

cast steel

Babbitt alloy

Polytetrafluoroethylene
Ethylene

carbon steel

Polytetrafluoroethylene
Ethylene

J41B-25Z

gray cast iron

J41B-25P

stainless steel

stainless steel

J41F-25Z

gray cast iron

carbon steel

Nominal pressure PN (MPA)

Test pressure PS (MPa)

Applicable Medium

Applicable temperature (℃)

two point five

three point eight

Ammonia gas
Ammonia solution, etc
NH3

Babbitt alloy
-40℃
+150℃

tetrafluoro
-40℃
+200

Nominal Diameter
DN（mm）

Size (mm)

Weight
（kg）

L

D

D1

D2

D4

b

f

f1

Z-φd

Close

open

D3

ten

one hundred and thirty

ninety

sixty

forty

thirty-five

sixteen

two

four

4-φ14

one hundred and sixty-five

one hundred and eighty-five

one hundred and ten

fifteen

one hundred and thirty

ninety-five

sixty-five

forty-five

forty

sixteen

two

four

4-φ14

one hundred and sixty-five

one hundred and eighty-five

one hundred and ten

twenty

one hundred and fifty

one hundred and five

seventy-five

fifty-five

fifty-one

eighteen

two

four

4-φ14

one hundred and seventy

two hundred

one hundred and twenty

twenty-five

one hundred and sixty

one hundred and fifteen

eighty-five

sixty-five

fifty-eight

eighteen

two

four

4-φ14

one hundred and ninety-seven

two hundred and ten

one hundred and twenty

thirty-two

one hundred and eighty

one hundred and thirty-five

one hundred

seventy-eight

sixty-six

twenty

two

four

4-φ18

one hundred and ninety-nine

two hundred and thirteen

one hundred and forty

forty

two hundred

one hundred and forty-five

one hundred and ten

eighty-five

seventy-six

twenty

three

four

4-φ18

two hundred and forty-eight

two hundred and sixty-four

one hundred and sixty

fifty

two hundred and thirty

one hundred and sixty

one hundred and twenty-five

one hundred

eighty-eight

twenty-two

three

four

4-φ18

two hundred and sixty-five

two hundred and ninety-five

one hundred and eighty

sixty-five

two hundred and ninety

one hundred and eighty

one hundred and forty-five

one hundred and twenty

one hundred and ten

twenty-four

three

four

8-φ18

three hundred and ten

three hundred and forty-nine

two hundred and twenty

eighty

three hundred and ten

one hundred and ninety-five

one hundred and sixty

one hundred and thirty-five

one hundred and twenty-one

twenty-six

three

four

8-φ18

three hundred and forty

three hundred and fifty-seven

two hundred and forty

one hundred

three hundred and fifty

two hundred and thirty

one hundred and ninety

one hundred and sixty

one hundred and fifty

thirty

three

four point five

8-φ23

three hundred and eighty

four hundred and thirteen

two hundred and eighty

one hundred and twenty-five

four hundred

two hundred and seventy

two hundred and twenty

one hundred and eighty-eight

one hundred and seventy-six

thirty-two

three

four point five

8-φ25

four hundred and thirty

four hundred and fifty-one

three hundred and twenty

one hundred and fifty

four hundred and eighty

three hundred

two hundred and fifty

two hundred and eighteen

two hundred and four

thirty-two

three

four point five

8-φ25

five hundred and five

four hundred and ninety-two

three hundred and sixty

two hundred

six hundred

three hundred and sixty

three hundred and ten

two hundred and seventy-eight

two hundred and sixty

thirty-four

three

four point five

12-φ25

five hundred and fifty

eight hundred and six

four hundred

two hundred and fifty

six hundred and fifty

four hundred and twenty-five

three hundred and seventy

three hundred and thirty-five

thirty-one

thirty-six

three

four point five

12-φ30

seven hundred and thirty

eight hundred and eighty

four hundred and fifty

three hundred

seven hundred and fifty

four hundred and eighty-five

four hundred and thirty

three hundred and ninety

three hundred and sixty-four

forty

three

four point five

16-φ30

-

nine hundred and ninety-five

five hundred and fifty