Item

 Adoption standard

 Optional standard

Design Manufacture  Acceptance

 GB12238-1989

 ISO/DIN10631-1991,API598

Valve structure lengh

 GB12221-1989 

 ISO5752-1988

Valve flange length

 GB9113-2000

 ANSI B16.5,ISO7005,JIS B2238,2239

Inspection

 GB/T13927-1992   

 ISO/DIN5208-1987

Mark

 GB12220-1989 

 ISO05209-1987

 Product Name

 Wafer type midline butterfly valve

 Connection

 Wafer type

 Nominal diamater

 DN40~DN1200

 Nominal pressure

 PN10/PN16

 Test pressure

Shell test:PN×1.5

Seal test:PN×1.1

 Surface treatment

 Epoxy coating

 Driven type

 Steamlined Aluminum Handle or High Strengh malleable Iron Handle

 Applicable temperature

 -30°C~180°C

 Applicable mediums

 Water, Salt, Acid, Alkali, Nature gas, Air, Alcohols, oils, food, steam and so on.