Seal HRGS-D Features (HBRGS-D)
- Double seal
- Balanced
- Standard version with
- U-grooves (bi-directional)
- Gas-lubricated
Seal HRGS-D Material
- 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)
Seal HRGS-D Advantages (HBRGS-D)
- Contact-free operation
- Suitable for solids containing media
- Internally pressurized
- Cartridge unit
- Does not open in the event of buffer pressure failure, self closing at pressure reversal
- HR principle with rotating seat
- No friction on the seal faces, no heat generated at the seal or in the medium
Seal HRGS-D Recommended applications
Chemical industry
Refining technology
Gases and liquids
Media which require high purity
Environmental harmful media
Pumps