Bray Controls offers our high quality, high pressure resilient-seated butterfly valves to meet the requirements of today's industrial/marine markets. This valve is specifically designed for onshore and offshore fire protection where the applicable certification is D.O.T. 54 (UK Department of Trade). The series 31U is designed to withstand high line velocities and pressure. Specifications: • Size Range: 2" - 12" (50mm - 300mm) • Body Style: Lug • Temperature Range: 0°F - 212°F (-18°C to 100°C) • Pressure Ratings: Bidirectional Bubble-tight Shutoff: 285 psi (20 Bar) • Body (CWP): 285 psi (20 Bar) • Body Materials: Ductile Iron, Carbon Steel, Nickel Aluminum Bronze • Disc Materials: Stainless Steel, Nickel Aluminum Bronze • Stem Materials: Stainless Steel, Monel K500 • Seat Materials: Bonded BUNA-N • Applications: High Pressure Industrial and Marine Dead-End service, On-Shore and Off-Shore Fire Protection
