Safety valves according to API standard type 526 - Leser.ru

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Type 526Pressure temperature ratingsOrifice JMetric UnitsValve size 2 J 3 2 J 3 3 J 4 3 J 4 3 J 4 3 J 4Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150 900 x 150 1500 x 300Actual Orifice diameter d 0 [mm] 36.0 36.0 36.0 36.0 36.0 36.0Actual Orifice area A 0 [mm 2 ] 1018 1018 1018 1018 1018 1018Minimum set pressure [bar] S/G/L 0.2 0.2 0.8 0.8 0.8 0.8Minimum set pressure [bar] S/G 3.5 3.5 3.5 3.5 3.5 3.5Balanced bellows Inconel [bar] L 5.0 5.0 5.0 5.0 5.0 5.0Body material: WCB 1.0619Pressure range p [bar] S/G/LMaximum -29 to 38 °C 19.7 19.7 51.0 102.1 153.1 186.2set pressure39 to 232 °C 12.8 19.7 42.4 85.2 127.2 186.2Outlet pressure limitConventional design233 to 427 °C 5.5 19.7 28.3 56.9 85.2 142.119.7 19.7 19.7 19.7 19.7 41.4Outlet pressure limitBalanced bellows design15.9 15.9 15.9 15.9 15.9 15.9JBody material: CF8M 1.4408Pressure range p [bar] S/G/LMaximum -268 to -60 °C 19.0 19.0 34.5 43.1 55.2 55.2set pressure-59 to -29 °C 19.0 19.0 49.7 99.3 149.0 186.2-28 to 38 °C 19.0 19.0 49.7 99.3 149.0 186.239 to 232 °C 12.4 12.4 34.1 67.2 102.4 171.0233 to 427 °C 5.5 5.5 29.0 58.3 87.2 145.5428 to 538 °C 1.4 1.4 24.1 48.3 72.4 120.7Outlet pressure limitConventional design19.0 19.0 19.0 19.0 19.0 41.4Outlet pressure limitBalanced bellows design15.9 15.9 15.9 15.9 15.9 15.9Body material: WC6 1.7357Pressure range p [bar] S/G/LMaximum 233 to 427 °C – – 35.2 70.0 105.2 175.2set pressure428 to 538 °C – – 14.8 29.7 44.8 74.5Outlet pressure limitConventional design– – 19.7 19.7 19.7 41.4Outlet pressure limitBalanced bellows design– – 15.9 15.9 15.9 15.9Body material: LCBPressure range p [bar] S/G/LMaximum -46 to 38 °C 18.4 18.4 48.0 96.0 144.1 186.2set pressure39 to 200 °C 13.8 13.8 42.5 85.1 127.6 186.2201 to 343 °C 8.4 8.4 36.4 72.8 109.2 182.0Outlet pressure limitConventional design18.4 18.4 18.4 18.4 18.4 41.4Outlet pressure limitBalanced bellows design15.9 15.9 15.9 15.9 15.9 15.9Remark: SA 352 Gr. LCB is not listed in the API 526. Pressure-Temperature Rating acc. to ASME B16.34 Table 2-1.3The stated Pressure-Temperature Rating are taken from ASME B16.34 Table 2-1.3 if the maximum pressure is not limited by API 526.Due to the extended material test certificate the LESER LCB can be applied as LCC, WCB, WCC and 1.0619with the respective pressure-temperature range as well.01/38
Type 526Pressure temperature ratingsOrifice JUS UnitsValve size 2 J 3 2 J 3 3 J 4 3 J 4 3 J 4 3 J 4Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150 900 x 150 1500 x 300Actual Orifice diameter d 0 [inch] 1.42 1.42 1.42 1.42 1.42 1.42Actual Orifice area A 0 [inch 2 ] 1.58 1.58 1.58 1.58 1.58 1.58Minimum set pressure [psig] S/G/L 3.0 3.0 12.0 12.0 12.0 12.0Minimum set pressure [psig] S/G 50.8 50.8 50.8 50.8 50.8 50.8Balanced bellows Inconel [psig] L 72.5 72.5 72.5 72.5 72.5 72.5Body material: WCB 1.0619Pressure range p [psig] S/G/LMaximum -20 to 100 °F 285 285 740 1480 2220 2700set pressure101 to 450 °F 185 285 615 1235 1845 2700Outlet pressure limitConventional design451 to 800 °F 80 285 410 825 1235 2060285 285 285 285 285 600Outlet pressure limitBalanced bellows design230 230 230 230 230 230Body material: CF8M 1.4408Pressure range p [psig] S/G/LMaximum -450 to -76 °F 275 275 500 625 800 800set pressure-75 to -21 °F 275 275 720 1440 2160 2700-20 to 100 °F 275 275 720 1440 2160 2700101 to 450 °F 180 180 495 975 1485 2480451 to 800 °F 80 80 420 845 1265 2110801 to 1000 °F 20 20 350 700 1050 1750Outlet pressure limitConventional design275 275 275 275 275 600JOutlet pressure limitBalanced bellows design230 230 230 230 230 230Body material: WC6 1.7357Pressure range p [psig] S/G/LMaximum 451 to 800 °F – – 510 1015 1525 2540set pressure801 to 1000 °F – – 215 430 650 1080Outlet pressure limitConventional design– – 285 285 285 600Outlet pressure limitBalanced bellows design– – 230 230 230 230Body material: LCBPressure range p [psig] S/G/LMaximum -50 to 100 °F 265 265 695 1395 2090 2700set pressure101 to 400 °F 200 200 615 1230 1845 2700401 to 650 °F 125 125 535 1065 1600 2665Outlet pressure limitConventional design265 265 265 265 265 600Outlet pressure limitBalanced bellows design230 230 230 230 230 230Remark: SA 352 Gr. LCB is not listed in the API 526. Pressure-Temperature Rating acc. to ASME B16.34 Table 2-1.3The stated Pressure-Temperature Rating are taken from ASME B16.34 Table 2-1.3 if the maximum pressure is not limited by API 526.Due to the extended material test certificate the LESER LCB can be applied as LCC, WCB, WCC and 1.0619with the respective pressure-temperature range as well.01/39
Page 2 and 3: NH 3HCLProduct RangeLESER Safety Va
Page 4 and 5: GeneralGeneral InformationLESER - A
Page 6 and 7: GeneralValve finderHow to find the
Page 8 and 9: GeneralHow to useGeneral signs and
Page 10 and 11: GeneralHow to useSample Capacity sh
Page 12 and 13: GeneralLEOS/GThis table is based on
Page 14 and 15: GeneralSour gas service (H 2 S)Norm
Page 16 and 17: Type 526Conventional designType 526
Page 18 and 19: Type 526Balanced bellows designType
Page 21 and 22: Type 5264 5 6Options Documentation
Page 23 and 24: Type 526Article numbers - OverviewA
Page 25 and 26: d 0 = Actual orifice diameterA 0 =
Page 27 and 28: d 0 = Actual orifice diameterA 0 =
Page 29 and 30: Type 526WeightsUS UnitsBonnetLiftin
Page 31 and 32: Type 526Orifice DArticle numbers, d
Page 33 and 34: Type 526Pressure temperature rating
Page 35 and 36: Type 526Orifice EArticle numbers, d
Page 39 and 40: Type 526Orifice FArticle numbers, d
Page 43 and 44: Type 526Orifice GArticle numbers, d
Page 47 and 48: Type 526Orifice HArticle numbers, d
Page 51: Type 526Orifice JArticle numbers, d
Page 55 and 56: Type 526Orifice KArticle numbers, d
Page 59 and 60: Type 526Orifice LArticle numbers, d
Page 63 and 64: Type 526Orifice MArticle numbers, d
Page 67 and 68: Type 526Orifice NArticle numbers, d
Page 71 and 72: Type 526Orifice PArticle numbers, d
Page 75 and 76: Type 526Orifice QArticle numbers, d
Page 79 and 80: Type 526Orifice RArticle numbers, d
Page 83 and 84: Type 526Orifice TArticle numbers, d
Page 87 and 88: Type 526Flange drillingsFlange dril
Page 89 and 90: Orifice900 x 300 1500 x 300 2500 x
Page 91 and 92: Type 526Spare parts - ComponentsIte
Page 93 and 94: Type 526Spare parts - Disc (Item 7)
Page 95 and 96: Type 526Spare parts - Nozzle (Item
Page 97 and 98: Type 526Spare parts - Balanced bell
Page 99 and 100: Type 526Spare parts - Gasket Body /
Page 101 and 102: Type 526ApprovalsApprovalsOrifice D
Page 103 and 104:
Type 526Capacities - SteamCapacitie
Page 105 and 106:
Type 526Capacities - AirCapacities
Page 107 and 108:
Type 526Capacities - WaterCapacitie
Page 109 and 110:
Accessoriesand OptionsContentsChapt
Page 111 and 112:
Accessories and OptionsCaps and lev
Page 113 and 114:
Accessories and OptionsCaps and lev
Page 115 and 116:
Accessories and OptionsMetal seat -
Page 117 and 118:
Accessories and OptionsSoft seal di
Page 119 and 120:
Accessories and OptionsSoft seal se
Page 121 and 122:
Accessories and OptionsBalanced bel
Page 123 and 124:
Accessories and OptionsHigh tempera
Page 125 and 126:
Accessories and OptionsLift indicat
Page 127 and 128:
Accessories and OptionsHeating jack
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Safety valves according to API standard type 526 - Leser.ru

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