API - Leser

Type 526Orifice MPressure temperature ratingsUS UnitsValve size 4 M 6 4 M 6 4 M 6 4 M 6 4 M 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 [inch] 2,37 2,37 2,37 2,37 2,37Actual Orifice area A 0 [inch 2 ] 4,43 4,43 4,43 4,43 4,43Body material: WCB 1.0619Temperature range Pressure range p [psig] S/G/LMaximum -20 to 100 °F 285 740 1100 –set pressure101 to 450 °F 185 615 1100 –451 to 800 °F 80Use 4 M 6410 825 1100Outlet pressure limit300 x 150285 285 285 285Conventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408Temperature range80 160 160 160Pressure range p [psig] S/G/LMaximum -450 to -76 °F 275 525 600 –set pressure-75 to -21 °F 275 720 1000 –-20 to 100 °F 275 720 1000 –101 to 450 °F 180 Use 4 M 6495 975 –451 to 800 °F 80 300 x 150420 845 –801 to 1000 °F 20 350 700 –Outlet pressure limitConventional design275 275 275 –Outlet pressure limitBalanced bellows design80 160 160 –Body material: WC6 1.7357Temperature rangePressure range p [psig] S/G/LMaximum 451 to 800 °F – 510 1000 1100set pressure801 to 1000 °F – 215 430 650Outlet pressure limitUse 4 M 6–Conventional design300 x 150285 285 285Outlet pressure limitBalanced bellows design– 160 160 160Body material: LCBTemperature rangePressure range p [psig] S/G/LMaximum -50 to 100 °F 265 695 1395 2090set pressure101 to 400 °F 200 615 1230 1845401 to 650 °F 125 Use 4 M 6535 1065 1600Outlet pressure limit300 x 150285Conventional design285 285 285Outlet pressure limitBalanced bellows design80 160 160 160MRemark: 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.LWN 480.01-E01/51