API - Leser

Type 526Orifice NPressure temperature ratingsMetric UnitsNValve size 4 N 6 4 N 6 4 N 6 4 N 6 4 N 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] 66 66 66 66 66Actual Orifice area A 0 [mm 2 ] 3421 3421 3421 3421 3421Body material: WCB 1.0619Temperature rangePressure range p [bar] S/G/LMaximum -29 to 38 °C 19,7 51,0 69,0 –set pressure39 to 232 °C 12,8 42,4 69,0 –233 to 427 °C 5,5Use 4 N 628,3 56,9 69,0Outlet pressure limit300 x 15019,7 19,7 19,7 19,7Conventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408Temperature range5,5 11,0 11,0 11,0Pressure range p [bar] S/G/LMaximum -268 to -60 °C 19,0 31,0 34,5 –set pressure-59 to -29 °C 19,0 49,7 69,0 –Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 to 38 °C 19,0 49,7 69,0 –39 to 232 °C 12,4 Use 4 N 634,1 67,2 –233 to 427 °C 5,5 300 x 15029,0 58,3 –428 to 538 °C 1,4 24,1 48,3 –Temperature range19,0 19,0 19,0 –5,5 11,0 11,0 –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 rangeUse 4 N 6– 300 x 15019,7 19,7 19,7– 11,0 11,0 11,0Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 48,0 96,0 144,1set pressure39 to 200 °C 13,8 42,5 85,1 127,6201 to 343 °C 8,4Use 4 N 636,4 72,8 109,2Outlet pressure limit300 x 15019,7 19,7 19,7 19,7Conventional designOutlet pressure limitBalanced bellows design5,5 11,0 11,0 11,0Remark: 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.01/54 LWN 480.01-E