| Message: | FeaturesDouble sealBalancedStandard version with U-grooves (bi-directional)Gas-lubricatedAdvantagesContact-free operationSuitable for solids containing mediaInternally pressurizedCartridge unitDoes not open in the event of buffer pressure failure, self closing at pressure reversalHR principle with rotating seatNo friction on the seal faces, no heat generated at the seal or in the mediumOperating rangeShaft diameter: ±dw = 20 ... 200 mm (0.787"... 7.874")Pressure HRGS-DC: p1 = ... 22 bar (319 PSI)p3 = ... 25 bar (363 PSI)Pressure HRGS-DD: p1 = ... 40 bar (580 PSI)p3 = ... 43 bar (624 PSI)Operating temperature limits for:EPDM -20 °C … +140 °C (-4 °F ... +284 °F)FFKM -20 °C … +120 °C (-4 °F ... 248 °F)FKM -20 °C … +170 °C (-4 °F ... 338 °F)Sliding velocity: vg = 4 ... 25 m/s (13 ... 82 ft/s)Differential pressure Δp = min. 3 bar (44 PSI), max. 16 bar (232 PSI) (internal pressure)MaterialsProduct side (HRGS-DC, HRGS-DD):Seal face: Silicon carbide (Q19, Q29)Seat: Silicon carbide (Q1, Q2)Atmosphere side HRGS-DC:Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)Seat: Silicon carbide (Q1, Q2)Atmosphere side HRGS-DD:Seal face: Silicon carbide (Q19, Q29)Seat: Silicon carbide (Q1, Q2)Springs: CrNiMo steel (G), Hastelloy® C-4 (M)Metal parts: CrNiMo steel (G), Hastelloy® C-4 (M)Recommended applicationsChemical industryRefining technologyGases and liquidsMedia which require high purityEnvironmental harmful mediaPumpsServiceProvide special designAccording to the requirements and conditions for the custom processing url:http://www.mechanicalsealsuppliers.com |
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