... : SS (One Piece with Pin)5.Seat: NBR EPDM VITON6.Working Pressure: PN107.Surface: Electric Fussion Epoxy Powder Coated 8.Actuator: Hand ... AS2129 TABEL C/D/E ETC... Butterfly valves can operate for more than 10,000 cycles and still provide "bubble tight ... off. Long service life, free passage, low resistance coefficient.Suitable for control of water, seawater, sewage, oil, air, vapor, food, medicine ...