RJWMG9
Mechanical seals for pumps
Features
- For plain shafts
- Single and dual seal
- Elastomer bellows rotating
- Balanced
- Independent of direction of rotation
- No torsion on bellows and spring
- Conical or cylindrical spring
- Metric and inch sizes available
- Special seat dimensions available
- US Patent No. 6.220.601
Recommended applications
- Water and waste water technology
- Pulp and paper industry
- Chemical industry
- Cooling fluids
- Media with low solids content
- Pressure oils for bio diesel fuels
- Circulating pumps
- Submersible pumps
- Multi-stage pumps (non-drive side)
- Water and waste water pumps
- Oil applications
Standards and approvals
- EN 12756
- Various material approvals available (depending on type and material combinations). Please inquire!
- FDA
- WRAS
- KTW
- ACS
- W270
- NSF
Materials
- Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1)
- Seat: Silicon carbide (Q1, Q2), Aluminium oxide (V)
- Elastomer: NBR (P), EPDM (E), FKM (V), HNBR (X4)
- Metal parts: CrNiMo steel (G)
Operating range
- Shaft diameter: d1 = 10 … 100 mm (0.375" … 4")
- Pressure: p1 = 12 bar (174 PSI), vacuum up to 0.5 bar (7.25 PSI), up to 1 bar (14.5 PSI) with seat locking
- Temperature: t = -20 °C … +140 °C (-4 °F … +284 °F)
- Sliding velocity: vg = 10 m/s (33 ft/s)
- Axial movement: ±0.5 mm
Advantages
- Fits into any installation space due to smallest outer seal diameter
- Important material approvals available
- Individual installation length can be achieved
- High flexibility due to extended selection of materials
- Universal application (standardization)