Enactus-HRGS-D Burgmann HRGS-D Replacement
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,Website:, 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
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