API 28in Butterfly Valve

Product Detail

ZFV 28inch wafer end class 300 triple offset butterfly valve. Gear operated, body material A351 CF8, disc material A351 CF8, laminated seal SS+graphite.

Main applicated standard as below :

Design API 609

Face to face API 609

Flange dimension ASME B16.47 Serial A

Testing 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 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. Available material include carbon steel, stainless steel, alloy steel and so on.