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Pressure / Temperature (Contd.)Pressure Temperature Ratings for L Orifice<strong>Valve</strong>TypeInletConnectionAPI Ratings (L Orifice - 2.853 in 2 (18.406 cm 2 ))Outlet-20 to 100ºF(-28.9 to 37.8ºC)<strong>Standard</strong> Material of Construction450ºF(232.2ºC)800ºF(426.7ºC)1000ºF(537.8ºC)Backpressure Ratings @ 100ºF (37.8ºC)ConventionalLPBellowsin. mm in. mm psig barg psig barg psig barg psig barg psig barg psig barg psig bargHP1905L 3.00 76.2 4.00 101.6 285 19.65 185 12.75 80 5.51 - - 285 19.65 53 3.65 100 6.891906L 3.00 76.2 4.00 101.6 285 19.65 285 19.65 285 19.65 - - 285 19.65 53 3.65 100 6.891910L 4.00 101.6 6.00 152.4 740 51.02 615 42.40 410 28.26 - - 285 19.65 53 3.65 170 11.721912L 4.00 101.6 6.00 152.4 1000 68.94 1000 68.94 825 56.88 - - 285 19.65 53 3.65 170 11.721914L 4.00 101.6 6.00 152.4 1500 103.42 1500 103.42 1235 85.15 - - 285 19.65 53 3.65 170 11.721916L 4.00 101.6 6.00 152.4 1500 103.42 1500 103.42 1500 103.42 - - 285 19.65 53 3.65 170 11.721920L 4.00 101.6 6.00 152.4 - - - - 510 35.16 215 14.82 285 19.65 53 3.65 170 11.721922L 4.00 101.6 6.00 152.4 - - - - 1000 68.94 430 29.64 285 19.65 53 3.65 170 11.721924L 4.00 101.6 6.00 152.4 - - - - 1500 103.42 650 44.81 285 19.65 53 3.65 170 11.721926L 4.00 101.6 6.00 152.4 - - - - 1500 103.42 1080 74.46 600 41.36 53 3.65 170 11.72Pressure Temperature Ratings for L Orifice<strong>Valve</strong>TypeInletASME Ratings (L Orifice - 3.317 in 2 (21.400 cm 2 ) Actual)ConnectionOutlet-20 to 100ºF(-28.9 to 37.8ºC)<strong>Standard</strong> Material of Construction450ºF(232.2ºC)800ºF(426.7ºC)1000ºF(537.8ºC)Backpressure Ratings @ 100ºF (37.8ºC)ConventionalLPBellowsin. mm in. mm psig barg psig barg psig barg psig barg psig barg psig barg psig bargHP1905L 3.00 76.2 4.00 101.6 290 19.99 185 12.75 80 5.51 - - 290 19.99 53 3.65 290 19.991906L 3.00 76.2 4.00 101.6 290 19.99 290 19.99 290 19.99 - - 290 19.99 53 3.65 290 19.991910L 4.00 101.6 6.00 152.4 750 51.71 685 47.22 410 28.26 - - 290 19.99 53 3.65 290 19.991912L 4.00 101.6 6.00 152.4 1500 103.42 1368 94.32 825 56.88 - - 290 19.99 53 3.65 290 19.991914L 4.00 101.6 6.00 152.4 2250 155.13 2053 141.54 1235 85.15 - - 290 19.99 53 3.65 290 19.991916L 4.00 101.6 6.00 152.4 3000 206.84 3000 206.84 2055 141.68 - - 290 19.99 53 3.65 535 36.881920L 4.00 101.6 6.00 152.4 - - - - 510 35.16 215 14.82 290 19.99 53 3.65 290 19.991922L 4.00 101.6 6.00 152.4 - - - - 1015 69.98 430 29.64 290 19.99 53 3.65 290 19.991924L 4.00 101.6 6.00 152.4 - - - - 1525 105.14 650 44.81 290 19.99 53 3.65 290 19.991926L 4.00 101.6 6.00 152.4 - - - - 2540 175.12 1080 74.46 290 19.99 53 3.65 535 36.88<strong>1900</strong>.76 | Dresser Consolidated ®
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