Constuction:b.B&w.B,os&y

Gasket:stainless stell +graphite

Flanged end

Replaceable hard-face seat

Design&manufacture:gb/t12224,gb/t12228,gb/t12234

Flange dimension:jb/t82,1-82.4-94

Face to face:jb/t97-95

Test&inspect:api598

Main body material:a105,lf2,f11,f22,f304,f304l,f316,f316l