Nominal pressure (MPa)

zero point six

one

one point six

Shell test pressure (MPa)

zero point nine

one point five

two point four

Sealing test pressure (MPa)

zero point six

one

one point six

Maximum import pressure (MPa)

zero point six

one

one point six

Export pressure range (MPa)

0.05-0.4

0.1-0.8

0.1-1.0

Pressure characteristic deviation (MPa) △ P2P

GB12244-1989

Flow characteristic deviation (MPa) △ P2G

GB12244-1989

Minimum pressure difference (MPa)

zero point one

zero point one five

zero point one five

leakage volume

GB12245-1989

Part Name

Part material

Valve body and valve cover

WCB

bottom cover

WCB

Valve seat, valve disc

2Cr13

bellows

1Cr18N9Ti

Pad on corrugated pipe

2Cr13

Bottom gasket of corrugated pipe

2Cr13

Number to Seat

2Cr13

Main valve spring

50CrVA

Adjusting spring

60S12Mn

DN

fifteen

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

Cv

one

two point five

four

six point five

nine

sixteen

twenty-five

thirty-six

sixty-four

Nominal diameter DN

Overall dimensions

connection size

L

H

H1

PN1.6MPa

PN1.6MPa

PN1.6MPa

0.6/1.0MPa

1.6MPa

D

K

n-Φ

d

C

D

K

n-Φ

d

C

D

K

n-Φ

d

C

fifteen

one hundred and forty

one hundred and forty

two hundred and ninety

ninety

eighty

fifty-five

4-12

forty

twelve

ninety-five

sixty-five

4-14

forty-five

twelve

ninety-five

sixty-five

4-14

forty-five

fourteen

twenty

one hundred and forty

one hundred and forty

two hundred and ninety-five

ninety-eight

ninety

sixty-five

4-12

fifty

twelve

one hundred and five

seventy-five

4-14

fifty-five

fourteen

one hundred and five

seventy-five

4-14

fifty-five

fourteen

twenty-five

one hundred and sixty

one hundred and sixty

two hundred and ninety-five

one hundred and ten

one hundred

seventy-five

4-12

sixty

fourteen

one hundred and fifteen

eighty-five

4-14

sixty-five

fourteen

one hundred and fifteen

eighty-five

4-14

sixty-five

fourteen

thirty-two

one thousand and eighty

one hundred and eighty

two hundred and ninety-five

one hundred and ten

one hundred and twenty

ninety

4-14

seventy

fourteen

one hundred and thirty-five

one hundred

4-18

seventy-eight

sixteen

one hundred and thirty-five

one hundred

4-18

seventy-eight

sixteen

forty

two hundred

two hundred

three hundred and twenty-five

one hundred and twenty-five

one hundred and thirty

one hundred

4-14

eighty

fourteen

one hundred and forty-five

one hundred and ten

4-18

eighty-five

sixteen

one hundred and forty-five

one hundred and ten

4-18

eighty-five

sixteen

fifty

two hundred and thirty

two hundred and thirty

three hundred and twenty-five

one hundred and twenty-five

one hundred and fifty

one hundred and ten

4-14

ninety

fourteen

one hundred and sixty

one hundred and twenty-five

4-18

one hundred

sixteen

one hundred and sixty

one hundred and twenty-five

4-18

one hundred

sixteen

sixty-five

two hundred and eighty

three hundred and twenty-five

one hundred and thirty

one hundred and sixty

one hundred and thirty

4-14

one hundred and ten

fourteen

one hundred and eighty

one hundred and forty-five

4-18

one hundred and twenty

eighteen

one hundred and eighty

one hundred and forty-five

4-18

one hundred and twenty

eighteen

eighty

three hundred and ten

three hundred and eighty

one hundred and sixty

one hundred and eighty-five

one hundred and fifty

4-18

one hundred and twenty-five

sixteen

one hundred and ninety-five

one hundred and sixty

4-18

one hundred and thirty-five

eighteen

one hundred and ninety-five

one hundred and sixty

8-18

one hundred and thirty-five

twenty

one hundred

three hundred and fifty

three hundred and eighty

one hundred and seventy

two hundred and five

one hundred and seventy

4-18

one hundred and forty-five

sixteen

two hundred and fifteen

one hundred and eighty

8-18

one hundred and fifty-five

twenty

two hundred and fifteen

one hundred and eighty

8-18

one hundred and fifty-five

twenty