Wafer type concentric Rubber Lined Butterfly Valve
Concentric butterfly valves with concentric design are widespread used due to their relatively low cost and simplicity of design and maintain.
Low cost, reliability, small dimensions and low weight of valve.The corrosion resistant material can prolong the lifespan of valve, the sealing parts are replaceable, and the sealing performance can reach to zero leakage, which make it applicable for special working condition.
Body materials ：carbon steel, stainless steel,bronze,cast iron
Body: WCB, CF8, CF8M, GGG40/50/GG25, C95800, C95500, 904L ,etc.
Seal materials : NBR, EPDM, VITON, PTFE
Size range(s) ：NPS 2 - 48 (DN50 - 1200)
Pressure rating ：ASME Classes 150 - 300(PN6-25)
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic
Standards : ASTM, ANSI, AWWA, JIS, BS, GOST, DIN etc.
Design Standard: API 609, MSS SP-67, MSS SP-68, BS 5155
Face to Face: API 609, ASME B16.10, BS 5155, EN1092/DIN/
End Connection: ASME B16.5, ASME B16.47/DIN/EN/GOST
Inspection and Test: API 598/API6D/EN12266-1/DIN