U type flange butterfly valve Size: 2"-48" Body: ci, di Disc: di nickel plated, ss, aluminum bronze Stem: ss (with pin) Seat: nbr, epdm, viton Operator: hand lever, worm gear, electric actuator, pneumatic actuator Design standard: api609; en593 Face to face: din3202-k1, en558-1 20 series; bs5155, mss sp-67 flange Drilling: din2501pn10/pn16; bs10-d; jis10k; bs4504; ansi125/150; as2129 table d/e; asa125/150. Pressure test: api 598