API - Leser

Type 526Orifice RPressure temperature ratingsMetric UnitsRValve size 6 R 8 6 R 8 6 R 10 6 R 10Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150Actual Orifice diameter d 0 [mm] 126,5 126,5 126,5 126,5Actual Orifice area A 0 [mm 2 ] 12668 12668 12668 12668Body material: WCB 1.0619Temperature rangePressure range p [bar] S/G/LMaximum -29 to 38 °C 6,9 6,9 15,9 20,7set pressure39 to 232 °C 6,9 6,9 15,9 20,7Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408233 to 427 °C 5,5 6,9 15,9 20,7Temperature range4,1 4,1 6,9 6,94,1 4,1 6,9 6,9Pressure range p [bar] S/G/LMaximum -268 to -60 °C 3,8 3,8 10,3 13,8set pressure-59 to -29 °C 6,9 6,9 15,9 20,7Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 to 38 °C 6,9 6,9 15,9 20,739 to 232 °C 6,9 6,9 15,9 20,7233 to 427 °C 5,5 5,5 15,9 20,7428 to 538 °C 1,4 1,4 15,9 20,7Temperature range4,1 4,1 6,9 6,94,1 4,1 6,9 6,9Pressure range p [bar] S/G/LMaximum 233 to 427 °C – – 6,9 20,7set pressure428 to 538 °C – – 6,9 20,7Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: LCBTemperature range– – 4,1 6,9– – 4,1 6,9Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 18,4 48,0 96,0set pressure39 to 200 °C 13,8 13,8 42,5 85,1Outlet pressure limitConventional designOutlet pressure limitBalanced bellows design201 to 343 °C 8,4 8,4 36,4 72,84,1 4,1 6,9 6,94,1 4,1 6,9 6,9Remark: 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 2-1.3Due 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.01/66 LWN 480.01-E