Part name
Valve Stem
Sealing face
Yokenut
Packing
Fasteher
Crstain
mless
teel
Crstain
mless
steel
H:alloy steel
AI
bronze
Expanding
compound
graphlte
High-grade
carbon
steel
Cr.Mo steel
Y:oarbide alloy
Cr.Mo steel
DN/mm
Nominal
diameter
PN/MPa
Nominal
pressure
Main extemal and connectingd mensions