MD291
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| Item | Description |
|---|---|
| 1, 4 | Seal face |
| 2, 5, 8, 11, 17 | O-Ring |
| 3, 6 | Spring |
| 7 | Seat |
| 9 | Collar |
| 10 | Gasket |
| 12, 21 | Set screw |
| 13, 15, 18, 20 | Pin |
| 14 | Seal cover |
| 16 | Shaft sleeve |
| 19 | Drive collar |
| 22 | Assembly fixture |
| 23 | HSH cap screw |
MD291
Features
- Cartridge design
- Balanced
- Ultra compact design
- Double seal
- Independent of direction of rotation
- Inboard seal can withstand both forward and back pressures
- Stationary, inside mounted type
- Springs do not contact the liquid
Advantages
- Equipped with flushing, quenching, and drainports as standard
- The cooling system where the water is directly injected onto the seal faces provides the highest cooling efficiency
Operating range
Pressure: p = vacuum … 10 bar (145 PSI)
Temperature:
t = -20 °C … 160 °C (-4 °F … 320 °F) (oil),
0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = 20 m/s (66 ft/s)
Viscosity: … 1 Pa·s
Solids content: … 10 %
Materials
Seal face (inboard side): Silicon carbide (Q1)
Seal face (atmosphere side): High density carbon graphite
Seat: Silicon carbide (Q1)
Metal parts: CrNiMo steel (G)
Secondary seals: FKM (V)
Recommended applications
- Acids
- Alkaline solutions
- Salt solutions
- Low viscosity oils
- Monomers
- Hydrocarbons
- Water
- Seawater
- Process industry
- Refining technology
- Petrochemical industry
- Chemical industry
- Pharmaceutical industry
- Pulp and paper industry
- Water and waste water technology
- Food and beverage industry
- Metal production and processing
- Chemical pumps
- Process pumps
- Universally applicable
