API - Leser

Type 526Orifice QPressure temperature ratingsMetric UnitsQValve size 6 Q 8 6 Q 8 6 Q 8 6 Q 8Flange rating class Inlet x Outlet 150 x 150 300L x 150 300 x 150 600 x 150Actual Orifice diameter d 0 [mm] 105,5 105,5 105,5 105,5Actual Orifice area A 0 [mm 2 ] 8742 8742 8742 8742Body material: WCB 1.0619Temperature rangePressure range p [bar] S/G/LMaximum -29 to 38 °C 11,4 20,7 41,4set pressure39 to 232 °C 11,4 20,7 41,4233 to 427 °C 5,5Use 6 Q 820,7 41,4Outlet pressure limit300 x 1507,9 7,9 7,9Conventional designOutlet pressure limitBalanced bellows designBody material: CF8M 1.4408Temperature range4,8 7,9 7,9Pressure range p [bar] S/G/LMaximum -268 to -60 °C 11,4 17,2 20,7set pressure-59 to -29 °C 11,4 20,7 41,4Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: WC6 1.7357-28 to 38 °C 11,4 20,7 41,439 to 232 °C 11,4 Use 6 Q 820,7 41,4233 to 427 °C 5,5 300 x 15020,7 41,4428 to 538 °C 1,4 20,7 41,4Temperature range7,9 7,9 7,94,8 7,9 7,9Pressure range p [bar] S/G/LMaximum 233 to 427 °C – 11,4 41,4set pressure428 to 538 °C – 11,4 29,7Outlet pressure limitConventional designOutlet pressure limitBalanced bellows designBody material: LCBTemperature rangeUse 6 Q 8– 300 x 1507,9 7,9– 7,9 7,9Pressure range p [bar] S/G/LMaximum -46 to 38 °C 18,4 48,0 96,0set pressure39 to 200 °C 13,8 42,5 85,1201 to 343 °C 8,4 36,4 72,8Use 6 Q 8Outlet pressure limit300 x 1507,9 7,9 7,9Conventional designOutlet pressure limitBalanced bellows design4,8 7,9 7,9Remark: 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.01/62 LWN 480.01-E