Operating range
Shaft 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)
HRGS-D Materials
Product 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)
