Wafer Butterfly Valves Cast Iron Wafer Butterfly Valves Standard compliance: 1) Design and manufacture: API609, ANSI B16.1 2) Test and inspection: API 598 3) Face to face dimensions: BS EN 558-1 4) Install between flanges: ANSI 16.10 CLASS 125, DIN2501 PN10/16, BS4504 PN10/16 Specifications: 1) Size: DN50 to DN1200 2) Class: PN10, PN16.125LB, 150LB 3) Type: Wafer type, lugged type and flanged type, central line, NBR/EPDM/VITON/PTFE Seat 4) Material: CAST IRON, DUCTILE IRON, CF8, CF8M 5) Operation: Lever, gear, pneumatic or electric actuator