As one of the leading no-pin wafer butterfly valve,Website:http://www.hugo-valve.com, butterfly valve wafer type with lock lever, centerline lug butterfly valve, full lug butterfly valve, no-pin lug butterfly valve manufacturers and suppliers in China and equipped with a productive factory, Shanghai Hugo Valve Co.,Ltd is always at your service. No-pin wafer butterfly valve Description 1, one of the outstanding feature of no-pin wafer / lug butterfly valve is that the disc adopted no-pin connection, rotate at the bottom, which makes the disc central position more precise and avoid leakage. 2, overall structure for stem, the contact surface of disc and seat is sphere, which reduced the torque sharply 3, high precision for disc, being shot blasted, cooperate with seat closely, which makes good sealing, there is no leakage between stem and disc. Valve materials of construction Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze Seat Materials: NBR, EPDM,PTFE, VITON Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958 ( single stem & no-pin) Stem Materials: SS416, SS304, SS316 Applicable standard Size Range: 2~8"(DN50~DN200） Pressure: PN10, PN16, Class125, Class 150 Standard : ANSI,DIN,JIS End Connection: Wafer, lug Operate: Manual, available for worm gear, double acting & spring return pneumatic and electric motorized.
