API - Leser

Type 526Orifice TPressure temperature ratingsUS UnitsValve size 8 T 10 8 T 10 8 T 10Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150Actual Orifice diameter d 0 [inch] 6,36 6,36 6,36Actual Orifice area A 0 [inch 2 ] 31,75 31,75 31,75Body material: WCB 1.0619Temperature range Pressure range p [psig] S/G/LMaximum -20 to 100 °F 65 300set pressure101 to 450 °F 65 300451 to 800 °F 65Use 8 T 10300Outlet pressure limit300 x 15030 100Conventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408Temperature range30 100Pressure range p [psig] S/G/LMaximum -450 to -76 °F 50 65set pressure-75 to -21 °F 65 120-20 to 100 °F 65 120101 to 450 °F 65 Use 8 T 10120451 to 800 °F 65 300 x 150120801 to 1000 °F 20 120Outlet pressure limitConventional design30 60Outlet pressure limitBalanced bellows design30 60Body material: WC6 1.7357Temperature rangePressure range p [psig] S/G/LMaximum 451 to 800 °F – 300set pressure801 to 1000 °F – 225Outlet pressure limitUse 8 T 10–Conventional design300 x 150100Outlet pressure limitBalanced bellows design– 100Body material: LCBTemperature rangePressure range p [psig] S/G/LMaximum -50 to 100 °F 265 695set pressure101 to 400 °F 200 615401 to 650 °F 125Use 8 T 10535Outlet pressure limit300 x 15030Conventional design100Outlet pressure limitBalanced bellows design30 100TRemark: 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-E01/71