ZFV 14'' class 150 Wafer end concentric type butterfly valve were pass the test & inspection and delivery to customer.
Below is detail description of concentric butterfly valve :
ZFV butterfly valve, 14'' ( DN350 ), Class 150, wafer end, mounted between flanges , flange standard ANSI B16.5, RF, concentric type butterfly valve ( without eccentric ) , bare shaft, top flange dimension as per customer's requirement , material body ductile iron, disc material stainless steel ASTM A351 CF8, seat vulcanized EPDM.
Design and manufacturuing standard API 609, face to face API 609, flanges dimension ANSI B16.5, test and inspection API598.
Painting color blue. the valve tested by hydro and air and result is ok. valve function also be tested ok , so that oversea customer can open and close easier.
The butterfly valves are used in industry sea water .
The valve is bare shaft without actuator , customer will install proper actuator to butterfly valve for operation . General dimension of top flange can be according to ISO5211, since customer have special requirement about dimension with technical drawing, the diameter of top flange is larger than standard. so valve is produced according to techincal drawing from customer.
Zhejiang zhengfeng valve co., ltd is one of professional butterfly valve manufacturer, producing high qulity butterfly valve with flange end, wafer end, LUG end and butt weld end type . material available include carbon steel, iron, stainless steel, alloy steel etc.
Available manufacturing standard include API, DIN, JIS. GOST, EN, ISO, GB and so on . also produce special standard valve by customer's order.
Zhejiang Zhengfeng Valve Co., Ltd