API - Leser

Type 526Orifice PPressure temperature ratingsMetric UnitsPValve size 4 P 6 4 P 6 4 P 6 4 P 6 4 P 6Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150 900 x 150Actual Orifice diameter d 0 [mm] 80 80 80 80 80Actual Orifice area A 0 [mm 2 ] 5027 5027 5027 5027 5027Body material: WCB 1.0619Temperature rangePressure range p [bar] S/G/LMaximum -29 to 38 °C 19,7 19,7 36,2 69,0 –set pressure39 to 232 °C 12,8 19,7 36,2 69,0 –Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408233 to 427 °C 5,5 19,7 28,3 56,9 69,0Temperature range19,7 19,7 19,7 19,7 19,75,5 5,5 10,3 10,3 10,3Pressure range p [bar] S/G/LMaximum -268 to -60 °C 12,1 12,1 20,7 33,1 –set pressure-59 to -29 °C 19,0 19,0 36,2 69,0 –Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 to 38 °C 19,0 19,0 36,2 69,0 –39 to 232 °C 12,4 12,4 34,1 67,2 –233 to 427 °C 5,5 5,5 29,0 58,3 –428 to 538 °C 1,4 1,4 24,1 48,3 –Temperature range19,0 19,0 19,0 19,0 –5,5 5,5 10,3 10,3 –Pressure range p [bar] S/G/LMaximum 233 to 427 °C – – 35,2 69,0 69,0set pressure428 to 538 °C – – 14,8 29,7 44,8Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: LCBTemperature range– – 19,7 19,7 19,7– – 10,3 10,3 10,3Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 18,4 48,0 96,0 144,1set pressure39 to 200 °C 13,8 13,8 42,5 85,1 127,6Outlet pressure limitConventional designOutlet pressure limitBalanced bellows design201 to 343 °C 8,4 8,4 36,4 72,8 109,219,7 19,7 19,7 19,7 19,75,5 5,5 10,3 10,3 10,3Remark: 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.01/58 LWN 480.01-E