DN

G

B

L

E

H

A

six

1/4"

five

fifty

fifteen

twenty-eight

sixty-five

ten

3/8"

eight

fifty

fifteen

thirty

sixty-five

fifteen

1/2"

ten point five

fifty-six

seventeen

thirty-four

eighty-five

twenty

3/4"

thirteen

sixty

eighteen

forty

ninety-five

twenty-five

1"

seventeen

seventy-one

twenty

fifty-two

one hundred and ten

thirty-two

1 1/4"

twenty-two

seventy-eight

twenty-one point five

sixty-two

one hundred and forty

forty

1 1/2"

twenty-five

ninety-six

twenty-three

sixty-eight

one hundred and forty

fifty

2"

thirty-two

one hundred and one

twenty-four point five

seventy-five

one hundred and fifty-five

sixty-five

2 1/2"

forty

one hundred and twenty

twenty-five

eighty-two

one hundred and eighty

Nominal pressure
Nominal pressure

PN

2.5,4

MPa

Strength test pressure
Strength testing pressure

PT

3.8,6,9.6

Low pressure gas seal test pressure
Set testing pressure

zero point six

High pressure sealing test pressure
Seat testing pressure

2.8,4.4,7.04

Applicable Medium
Applicable media

Q11F-25C
40C

Q11F-25P
40P

Q11F-25R
40R

Water, oil, gas
Warer,Oil,Steam

acids
Nitric acid

Acetic acid
Acetic acid

Operating temperature
Applicable temperatrue

-40～180℃

Part Name
Description of parts

Q21F-25,40

Q21F-25P,40P

Q21F-25R,40R

Valve body
Valve body

WCB

ZG1Cr18Ni9Ti
CF8

ZG1Cr18Ni12Mo2Ti
CF8M

Sphere
Ball body

1Cr18Ni9Ti
three hundred and four

1Cr18Ni9Ti
three hundred and four

1 Cr18Ni12Mo2Ti
three hundred and sixteen

Valve stem
Valve Stem

1Cr18Ni9Ti
three hundred and four

1Cr18Ni9Ti
three hundred and four

1 Cr18Ni12Mo2Ti
three hundred and sixteen

seal ring
Seal ring

Polytetrafluoroethylene
Polytetrafluoroethylene

Packing material
Packing

Polytetrafluoroethylene
Polytetrafluoroethylene