ZFV DN250 PN25 LUG Triple Offset Butterfly Valve have already pass the inspection and ready for delivering .
Detail description of finished butterfly valve refer to below :size DN250 rate PN25 LUG type, Triple Offset consturction, valve with top flange and without actuator, body material C.S. WCB, disc stainless steel A351 CF8M, stem material 17-4PH, seal stainless steel 316 + graphite, packing graphite, with bolting A193 B7&A194 2H, gland C.S. WCB.
Main techinical standard as below :
Design and manufactured as per EN593, Face to face dimension as per EN558, End flanges dimension as per EN1092-1 , Test and inspection as per EN12266-1.
The butterfly valve are applied painting with color as per customer's request, finishing painting color black, paitning dry film thickness 250um max. We can also apply other color painting, general color include blue, silver and other color in order.
The valve are carried out hydro testing strictly as per international standard EN12266-1 and tested ok, no visual leakage found during hydro testing and air testing. For tracking purpose, each valve stamped with unique series number , which also shown in mill test certificate .
ZFV ( Zhejiang zhengfeng valve co., ltd ) is a professional butterfly valve manufacturer, mainly producing high qulity butterfly valve with flange end, wafer end, LUG end and butt weld end type, available manufacturing standard include API, DIN, JIS. GOST, EN, ISO, GB and so on , with vavied material to meet different requirements over the world.
Zhejiang Zhengfeng Valve Co., Ltd