| 规格: | Detail: Features
# O-ring is seated in disc and easy to be replaced.
# Choice of O-ring elastomers for different operating temperatures and environments.
# Standard cast iron nickel plated body.
# Aluminum bronze or nickel plated ductile iron disc options.
# Large diameter shaft on all size provides superior strength.
# Maximum disc diameter for each valve size, that has a greater free-flow area than the others.
# Open and close locking handle with more dependable locking capabilities.
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