Douglas -Model 800 -Cryogenic Welded Bonnet Gate Valves

Ratings (ASTM A105): 800 p.s.i. @ 850°F, 1975 p.s.i. @ 100°F. Test pressure (ASTM A105): Hydraulic:(minimum), Body - 3000 p.s.i. Seat - 2175 p.s.i. Air under water: Seat - 85 p.s.i. Standards: Construction: founded on API 602, BS 5352, Socket weld: ASME B16.11, Threaded: ASME B1.20.1, Test: founded on API 598-BS 6755 (Pt.1). Connections (xx): SW: Socket weld, B8: Butt weld 80, TH: Threaded NPT, TS: Sw/NPT, SE: Sw(e)/NPT, SU: Sw(u)/NPT, B4: Butt weld 40.