regular full bore weld ball valve cf8m weld api standard weld ball valve

Question

body

carbon steel Q345R

bearing

copper alloy

 

 

connection pipe

Q345R

branch pipe

Q345R

 

 

ball

304

stem o-ring

FPM

 

 

seat

PTFE+C

gasket

graphite

 

 

seat o-ring

FPM

packing gland

304

 

 

support ring

60si2mn

stop block

304

 

 

disc spring

60si2mn

circlip

65mn

 

 

stem

20cr13

worm gear

cast iron

 

 

thrust gasket

graphite

hexagonal screw

8.8

 

 

 

 

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