Type 526Orifice JPressure temperature ratingsMetric UnitsJValve 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 36 36 36 36 36Actual Orifice area A 0 [mm 2 ] 1018 1018 1018 1018 1018 1018Body material: WCB 1.0619Temperature rangePressure 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 designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408233 to 427 °C 5,5 19,7 28,3 56,9 85,2 142,1Temperature range19,7 19,7 19,7 19,7 19,7 41,415,9 15,9 15,9 15,9 15,9 15,9Pressure 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 99,3 149,0 186,2Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 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 72,4 120,7Temperature range19,0 19,0 19,0 19,0 19,0 41,415,9 15,9 15,9 15,9 15,9 15,9Pressure 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 designOutlet pressure limitBalanced bellows designBody material: LCBTemperature range– – 19,7 19,7 19,7 41,4– – 15,9 15,9 15,9 15,9Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 18,4 48,0 96,0 144,1 240,1set pressure39 to 200 °C 13,8 13,8 42,5 85,1 127,6 212,7Outlet pressure limitConventional designOutlet pressure limitBalanced bellows design201 to 343 °C 8,4 8,4 36,4 72,8 109,2 182,019,7 19,7 19,7 19,7 19,7 41,415,9 15,9 15,9 15,9 15,9 15,9Remark: SA 352 Gr. LCB is not listed in the <strong>API</strong> 526. Pressure-Temperature Rating acc. to ASME B16.34 Table 2-1.3The stated Pressure-Temperature Rating are taken from ASME B16.34 Table 2-1.3Due 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 LWN 480.01-E
Type 526Orifice JPressure temperature ratingsUS 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 1,58Body material: WCB 1.0619Temperature rangePressure 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 designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408451 to 800 °F 80 285 410 825 1235 2060Temperature range285 285 285 285 285 600230 230 230 230 230 230Pressure range p [psig] S/G/LMaximum -450 to -76 °F 275 275 500 1440 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 600Outlet pressure limitBalanced bellows design230 230 230 230 230 230Body material: WC6 1.7357Temperature rangePressure 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: LCBTemperature rangePressure range p [psig] S/G/LMaximum -50 to 100 °F 265 265 695 1395 2090 3480set pressure101 to 400 °F 200 200 615 1230 1845 3075401 to 650 °F 125 125 535 1065 1600 2665Outlet pressure limitConventional design285 285 285 285 285 600Outlet pressure limitBalanced bellows design230 230 230 230 230 230JRemark: SA 352 Gr. LCB is not listed in the <strong>API</strong> 526. Pressure-Temperature Rating acc. to ASME B16.34 Table 2-1.3The stated Pressure-Temperature Rating are taken from ASME B16.34 Table 2-1.3Due 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.LWN 480.01-E01/39
- Page 1 and 2: APIFlanged Safety Relief ValvesSeri
- Page 3 and 4: ContentsChapter/PageGeneral 00/01Ap
- Page 5 and 6: General InformationGeneralApplicati
- Page 7 and 8: Valve finderHow to find the right A
- Page 9 and 10: How to useSelection chartsGeneralTh
- Page 11 and 12: How to useGeneral8Base of calculati
- Page 13 and 14: LEOLGeneralThis table is based on t
- Page 15 and 16: TypeType 526Type 526Packed lever H4
- Page 17 and 18: Type 526Conventional designItemMate
- Page 19 and 20: Type 526Balanced bellows designMate
- 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 UnitsBonnetallLif
- Page 31 and 32: Type 526Orifice DArticle numbers, d
- Page 33 and 34: Type 526Orifice DPressure temperatu
- Page 35 and 36: Type 526Orifice EArticle numbers, d
- Page 37 and 38: Type 526Orifice EPressure temperatu
- Page 39 and 40: Type 526Orifice FArticle numbers, d
- Page 41 and 42: Type 526Orifice FPressure temperatu
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- Page 45 and 46: Type 526Orifice GPressure temperatu
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- Page 63 and 64: Type 526Orifice MArticle numbers, d
- Page 65 and 66: Type 526Orifice MPressure temperatu
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- Page 69 and 70: Type 526Orifice NPressure temperatu
- Page 71 and 72: Type 526Orifice PArticle numbers, d
- Page 73 and 74: Type 526Orifice PPressure temperatu
- Page 75 and 76: Type 526Orifice QArticle numbers, d
- Page 77 and 78: Type 526Orifice QPressure temperatu
- Page 79 and 80: Type 526Orifice RArticle numbers, d
- Page 81 and 82: Type 526Orifice RPressure temperatu
- Page 83 and 84: Type 526Orifice TArticle numbers, d
- Page 85 and 86: Type 526Orifice TPressure temperatu
- Page 87 and 88: Type 526Flange facingsIndication St
- Page 89 and 90: Orifice900 x 300 1500 x 300 2500 x
- Page 91 and 92: Type 526Spare parts - Disc (Item 7)
- Page 93 and 94: Type 526Spare parts - Stainless ste
- Page 95 and 96: Type 526Spare parts - Gasket Body /
- Page 97 and 98: Type 526Spare parts recommendations
- Page 99 and 100: Type 526ApprovalsApprovalsOrifice D
- Page 101 and 102: Type 526Capacities - SteamCapacitie
- Page 103 and 104:
Type 526Capacities - AirCapacities
- Page 105 and 106:
Type 526Capacities - WaterCapacitie
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Accessoriesand OptionsContentsChapt
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Accessories and OptionsCaps and lev
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Accessories and OptionsCaps and lev
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Accessories and OptionsMetal seat -
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Accessories and OptionsSoft seal di
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Accessories and OptionsSoft sealSof
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Accessories and OptionsBalanced bel
- Page 121 and 122:
Accessories and OptionsLift indicat
- Page 123 and 124:
Accessories and OptionsHeating jack
- Page 125 and 126:
Accessories and OptionsO-ring dampe
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