Series 31H Resilient Seated Butterfly Valve

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.

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