Model 8DDDX214 Double Disc Pumps
The 8” Duplex Model 8DDDX214 Double Disc Pump™ is a monster of a pump and sometimes we need monsters to handle certain applications. This pump will find applications for high capacity dewatering applications such as large centrifuges, belt presses with extended gravity sections, GBT’s, and RDT’s. This pump is also used for high volume WAS transfer, digested sludge transfer and truck loading applications. This cast iron pump can run dry without damage and has no fouling problems. It has a flow range of up to 1,100 GPM and can handle up to 2” solids as well as line size semi-solids. This pump operates at speeds up to 400 RPM.
Features
- Maintain-In-Place™ hinged housing design for elastomer replacement without disturbing piping
- Two-piece swan neck
- Non-close tolerance = Low wear = Long Operating Life
- Runs dry without damage
- Seal-less design, no packing gland or mechanical seals, no seal water required
- No internal check valves, no fouling problems
- Self-priming with high suction lifts
- Passes up to 2″ solids and line size semi-solids
- No routine maintenance required
- Compact footprint
- Custom configurations available
- Two-year warranty
| Technical Specifications | |
|---|---|
| Typical Flow Range: | Up to 1,100 GPM |
| Displacement: | 2.14 gal/rev @ 60ft TDH @ 300RPM |
| Operating Speeds: | Up to 400 RPM |
| Discharge Pressure: |
Up to 60psi operating Up to 110psi stall pressure |
| Suction Pressure: | Up to 25” Hg (28ft) |
| Fittings: | 8” 150# Flanged |
Product Literature
Please contact us about ordering replacement parts uniquely engineered to fit your pump model.
Materials of Construction
| MATERIAL | OPTIONAL | |
|---|---|---|
| Housings | Cast iron | Lined with Porcelain Glass, Neoprene, PVC, Tungsten Carbide, others |
| Elastomers | Neoprene | Buna-N, EPDM, HNBR, Viton, others |
| Connecting Rods | High-tensile Aluminum | |
| Drive Shaft | High-tensile 400 Series SS | |
| Eccentric Cams | High tensile bronze alloy | |
| Bearing Pedestals | Aluminum | |
| Frame and Covers | SS304 | SS316, Galvanized Steel |
Drives
| Type | OPTIONAL | |
|---|---|---|
| Static | Electric belt and pulley | Gear reduced direct drive, Air and Hydraulic motor |
| Portable | Electric, Gas and Diesel Engine |