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Pressure / Temperature (Contd.)Pressure Temperature Ratings for Q Orifice 1API Ratings (Q Orifice - 11.050 in 2 (71.290 cm 2 ))Backpressure Ratings @ 100ºF (37.8ºC)Connection<strong>Standard</strong> Material of ConstructionBellows<strong>Valve</strong>TypeInletOutlet-20 to 100ºF(-28.9 to 37.8ºC)450ºF(232.2ºC)800ºF(426.7ºC)1000ºF(537.8ºC)ConventionalLPHPin. mm in. mm psig barg psig barg psig barg psig barg psig barg psig barg psig barg1905Q 6.00 152.4 8.00 203.2 165 11.37 165 11.37 80 5.51 - - 285 19.65 56 3.86 80 5.511906Q 6.00 152.4 8.00 203.2 165 11.37 165 11.37 165 11.37 - - 285 19.65 56 3.86 80 5.511910Q 6.00 152.4 8.00 203.2 300 20.68 300 20.68 300 20.68 - - 285 19.65 56 3.86 150 10.341912Q 6.00 152.4 8.00 203.2 600 41.36 600 41.36 600 41.36 - - 285 19.65 56 3.86 150 10.341920Q 6.00 152.4 8.00 203.2 - - - - 165 11.37 165 11.37 285 19.65 56 3.86 150 10.341922Q 6.00 152.4 8.00 203.2 - - - - 600 41.36 430 29.64 285 19.65 56 3.86 160 11.03Pressure Temperature Ratings for Q Orifice 1ASME Ratings (Q Orifice - 12.850 in 2 (82.903 cm 2 ) Actual)Backpressure Ratings @ 100ºF (37.8ºC)Connection<strong>Standard</strong> Material of ConstructionBellows<strong>Valve</strong>TypeInletOutlet-20 to 100ºF(-28.9 to 37.8ºC)450ºF(232.2ºC)800ºF(426.7ºC)1000ºF(537.8ºC)ConventionalLPHPin. mm in. mm psig barg psig barg psig barg psig barg psig barg psig barg psig barg1905Q 6.00 152.4 8.00 203.2 290 19.99 185 12.75 80 5.51 - - 290 19.99 52 3.58 205 14.131906Q 6.00 152.4 8.00 203.2 290 19.99 290 19.99 290 19.99 - - 290 19.99 52 3.58 205 14.131910Q 6.00 152.4 8.00 203.2 650 44.81 650 44.81 410 28.26 - - 290 19.99 52 3.58 205 14.131912Q 6.00 152.4 8.00 203.2 900 62.05 900 62.05 825 56.88 - - 290 19.99 52 3.58 205 14.131920Q 6.00 152.4 8.00 203.2 - - - - 510 35.16 215 14.82 290 19.99 52 3.58 205 14.131922Q 6.00 152.4 8.00 203.2 - - - - 900 62.05 430 29.64 290 19.99 52 3.58 205 14.13Notes:1. This valve is not listed in API 526 standard.<strong>1900</strong>.84 | Dresser Consolidated ®
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