ZFV 800’’ CL300 LUG TOV ( triple offset butterfly valve ) were finished & pass testing in our factory , ready for delivering.
See below photo, ZFV 8’’ CL300 LUG Triple Offset Butterfly Valve, gear operated, body material stainless steel A351 CF8M, disc and stem stainless steel SS316, seal stainless steel 316 + graphite
Design and manufactured as per API609
Face to face dimension as per API609 Cat.B
End flanges dimension as per ANSI B16.5
Test and inspection as per API598
The butterfly valves are stainless steel and used in chemical industry area, where request no visible leakage inside and outside of valve.
There is no painting or coating on body because body is already austenic stainless steel material, which is anti-corrosive to acid , alkali etc, unnecessary to apply other coating or painting. The machined surface s, including threads, be coated with an easily removable rust inhibitor.
The SS butterfly valve also carried out hydro and air testing strictly as per international standard API598 and tested ok, each valve are tracable by unique series number from our factory.
The yoke material is casting steel , steel plate is also available for using, just as per customer’s choosing.
Zhejiang zhengfeng valve co., ltd is a professional valve manufacturer, producing variety kind of butterfly valve with carbon steel, stainless steel, duplex, alloy steel, etc .
Zhejiang Zhengfeng Valve Co., Ltd