API - Leser

Type 526Orifice EPressure temperature ratingsMetric UnitsEValve size 1 E 2 1 E 2 1 E 2 1 E 2 1 1 / 2 E 2 1 1 / 2 E 2 1 1 / 2 E 3Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150 900 x 300 1500 x 300 2500 x 300Actual Orifice diameter d 0 [mm] 14 14 14 14 14 14 14Actual Orifice area A 0 [mm 2 ] 154 154 154 154 154 154 154Body material: WCB 1.0619Temperature rangePressure range p [bar] S/G/LMaximum -29 to 38 °C 19,7 51,0 102,1 255,5 413,8set pressure39 to 232 °C 12,8 42,4 85,2 212,4 354,1233 to 427 °C 5,5Use 1 E 228,3 56,9Use 1 1 /142,1 236,62 E 2Outlet pressure limit300 x 1501500 x 30019,7 19,7 19,7 41,4 51,0Conventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408Temperature range15,9 15,9 15,9 34,5 34,5Pressure range p [bar] S/G/LMaximum -268 to -60 °C 19,0 49,7 99,3 248,3 275,9set pressure-59 to -29 °C 19,0 49,7 99,3 248,3 413,8Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 to 38 °C 19,0 49,7 99,3 248,3 413,839 to 232 °C 12,4 Use 1 E 2 34,1 67,2 Use 1 1 / 2 E 2 171,0 284,8233 to 427 °C 5,5 300 x 150 29,0 58,3 1500 x 300 145,5 242,8428 to 538 °C 1,4 24,1 48,3 120,7 201,0Temperature range19,0 19,0 19,0 41,4 49,715,9 15,9 15,9 34,5 34,5Pressure range p [bar] S/G/LMaximum 233 to 427 °C – – 35,2 70,0 175,2 291,7set pressure428 to 538 °C – – 14,8 29,7 74,5 124,1Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: LCBTemperature rangeUse 1 1 / 2 E 2– – 19,7 19,7 1500 x 300 41,4 51,0– – 15,9 15,9 34,5 34,5Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 48,0 96,0 240,1 400,1set pressure39 to 200 °C 13,8 42,5 85,1 212,7 354,4201 to 343 °C 8,4 36,4 72,8 182,0 303,3Use 1 E 2Use 1 1 / 2 E 2Outlet pressure limit300 x 1501500 x 30019,7 19,7 19,7 41,4 51,0Conventional designOutlet pressure limitBalanced bellows design15,9 15,9 15,9 34,5 34,5Remark: 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 2-1.3Due 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.01/22 LWN 480.01-E