Specifications

· Size Range:2” – 20” (50mm – 500mm)

· Body Style:Lug

· Temperature Range:-20°F to 250°F (-29°C to 121°C)

· Pressure Ratings:Bidirectional Bubble-tight Shutoff: 250 psi (17.2 Bar)
Dead-End Service Shutoff: 250 psi (17.2 Bar)
Body (CWP): 250 psi (17.2 Bar)

· Body Materials:Cast Iron, Ductile Iron

· Disc Materials:Nylon 11 Coated Ductile Iron, Aluminum Bronze, Stainless Steel

· Stem Materials:Stainless Steel

· Seat Materials:Bonded BUNA-N, Bonded EPDM

· Applications:High Pressure, HVAC, Dead-End service

Series 31H Lug resilient seated butterfly valves are drilled and tapped to meet ASME Class 125/150 and PN16 flanges. Series 31H Valves will not be automated.