Pneumatically Actuated Butterfly Valve Action Spring Return Body Material Ductile Iron Pipe Size 3 in Connection Terminal Block Max Water Pressure 200 psi Seat Material EPDM Number of Bolt Holes 4 Lug Dia 5/8-11 in Standards API 609 Air Inlet Pressure 80 psi Bolt Circle Dia 6 in Product Type Pneumatically Actuated Butterfly Valve