ZFV Butterfly valve SS AISI321 wafer ends finished and ready for delivery

- Aug 30, 2020-

ZFV Butterfly valve SS AISI321 wafer ends finished and ready for delivery


Refer to below technical data for butterfly valve :

Three offset butterfly valve, DN400, PN16, connecting type wafer ends, installed clamped onto two flanges. Flange drilling accordance with GOST standard 33259-2015, main part material SS321: body AISI321, disc AISI321, stem AISI321, seat PTFE or EPDM. The packing material graphite. The valve shall be operated by electric actuator. The actuator is quarter-turn type, for opening and closing purpose, but not for adjusting purpose. 380V/50Hz/3Ph, with integrated limit switches SPDT, with adjustable mechanic limits, with mechanical position indicator, corrosive protection and with heater.


The valve be tested and inspected by water for shell and high pressure seat sealing, as per international standard.


No requirement about painting for this stainless steel butterfly valve.


The valve was tested, no visual leakage found during hydro testing and air testing, meet requirement of GOST 9544-A class.

dimensions checking and function checking result is ok .

The detail value of hydro-static is as below :

Hydro-static ( water ) with 2.4Mpa for shell testing

Hydro-static ( water ) with 1.76Mpa for high pressure closure testing   

Air with 0.6Mpa for low pressure closure testing  .


ZFV Zhejiang Zhengfeng Valve Co., Ltd is a professtional butterfly valve manufacturer, which produce high quality flanged butterfly valve , wafer end butterfly valve, lug end butterfly valve, butt welded butterfly valve, with operation manual handle, worm gear, pneumatic actuator, electric actuator and so on.  


 SS321 butterfly valve 201907241711448859518[1]

Zhejiang Zhengfeng Valve Co., Ltd