.

Cast Iron Wafer Butterfly Valve

Techniquestandard

Design

GB/T12235

FacetoFace

GB/T12221、HG/T3704-2003

Flangedimension

HG20592-97ANSIB16.5a

Modeofdriving

Hand、electrically-driven、air-operated

NominalPressure

Pressuretest

GB/T13927、API1598

Mainpartsmaterialspecifications

Name

RefinedD.I

Caststeel

Stainlesssteel

QT

C

P

R

RL

RL

Body/Bonnet

QT400

WCB

CF8

CF8M

CF3

CF3M

Innerlining

FEP/PTFE(F4)/PFA/PO/PE

Packing

FTFE(F4)

packingcover

QT400

WCB

CF8

CF8M

CF3

CF3M

Disc

QT400

WCB

CF8

CF8M

CF3

CF3M

Bolt

35

35

SS316

SS316

SS302

SS302

Nut

45

45

SS304

SS304

S304

SS304


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