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Pneumatic ventilation butterfly valve
Nominal diameter: DN 50-800
Nominal pressure :0.05~ 0.5mpa
Applicable temperature :-29¡æ~425¡æ, -40¡æ~200¡æ
Applicable medium: gas, dust gas, flue gas, etc
Execution standard: GBT / 12238, GB12221, GB9113, GB9131, GB13927
Product details

Main performance parameters

DN (mm) Nominal diameter

50-800

PN( Mpa) Nominal pressure

0.05

0.25

0.6

PS( Mpa)

Nominal pressure

Strength test

0.075

0.375

0.9

Seal test

¡Ü15% (Leakage)

Material \ Material code

C

P

R


Main parts

Body

WCB

1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

Butterfly plate

2Cr13

1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

Valve stem

2Cr13

1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

Sealing ring

WCB

1Cr18Ni9Ti

0Cr18Ni12Mo2Ti

Packing

Fluoroplastic, flexible graphite

Applicable condition

Applicable medium

Gas, dust gas, flue gas, etc

Suitable temperature

-29¡æ~425¡æ

-40¡æ~200¡æ

Actuator

Model

GT or AW series

Air pressure

0.3-0.7MPa


Execution standard

Design and

manufacture

Structural length

Flange size

Pressure

temperature

Test test

GBT/12238

GBT/12221

GB9113

GB9131

GB13927


Main external connection dimensions


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