ZFV 28inch wafer end class 300 triple offset butterfly valve were finished and pass test and inspection.
Refer to above pictures, ZFV 28inch class 300 wafer end triple offset butterfly valve, gear operated, body material A351 CF8, disc material A351 CF8, laminated seal SS+graphite.
Design and manufacture as per API 609
Face to face dimension as per API 609
End flanges dimension as per ASME B16.47 Serial A
Test & inspection as per API 598
The butterfly valves are used in chemical industry plant where request good quality valve, there should be no any leakage inside and outside of valve. ZFV valve were strictly tested as per API598 and the result ok. each valve are traceable by unique series number marked on valve by ZFV.
ZFV Zhejiang Zhengfeng Valve Co., Ltd is one of professtional butterfly valve manufacturer, we produce high quality flanged butterfly valve , wafer end butterfly valve, lug end butterfly valve, butt welded butterfly valve.
Availabe manufacturing standard include API, DIN, JIS, GOST, EN, ISO, GB and so on, also produce special standard valve by customer's order. Available pressure rate include class 150 - class 1500, PN6 - PN150, available dimension from 2'' - 80'', DN50 - DN2000.