Features mechanical seal emg
- For plain shafts
- Single and dual seal
- Elastomer bellows rotating
- Balanced
- Independent of direction of rotation
Advantages mechanical seal emg
- Identical with eMG1 but with approx.
20 % shorter installation length - Small outer diameter of bellows support (dbmin) enables direct retaining ring support, or smaller spacer rings
- Optimal alignment characteristic through self-cleaning of disk/shaft
- Improved centering across entire pressure operating range
- No torsion on bellows
- Shaft protection over entire seal length
- Protection of seal face during installation due to special bellows design
- Insensitive to shaft deflections due to large axial movement ability
Operating range seal emg
- Shaft diameter:
d1 = 14 … 110 mm (0.55″ … 4.33″) - Pressure: p1 = 18 bar (261 PSI),
vacuum … 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)
- Admissible axial movement: ±2.0 mm (±0.08″)
Materials mechanical seal emg
- Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (eSiC-Q7, Q1)
- Seat: Silicon carbide (eSic-Q7, Q1), Tungsten carbide (U3)
- Elastomer: NBR (P), EPDM (E), FKM (V),
HNBR (X4) - Metal parts: CrNiMo steel (G), Hastelloy® (M)
Item | Description |
1.1 | Seal face |
1.2 | Bellows |
1.3 | Set of springs |
1.4 | PEEK-PTFE disk |
2 | Seat (G6) |
3 | O-Ring or cup rubber |
Recommended applications eMG
- Fresh water supply
- Building services engineering
- Waste water technology
- Food technology
- Sugar production
- Pulp and paper industry
- Oil industry
- Petrochemical industry
- Chemical industry
- Water, waste water, slurries
(up to 5 % by weight) - Pulp (up to 4 % otro)
- Latex
- Dairies, beverages
- Sulfide slurries
- Chemicals
- Oils
- Chemical standard pumps
- Helical screw pumps
- Stock pumps
- Circulating pumps
- Submersible pumps
- Water and waste water pumps