- 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 3/4″ solids and line size semi-solids
- No routine maintenance required
- Compact foot-print
- Custom configurations available
- Two-year warranty
Our Model 3DDSX11 Double Disc Pump is the ultimate in positive displacement pumps. The most common application for this pump model is small screw press and rotary press feed applications. It is also used frequently in lime slurry feed and transfer applications. Its Maintain-In-Place hinged housing design reduces the complexity of maintaining the pump, as well as allows it to be rebuilt without having to move it or disturb the piping during maintenance. The cast iron 3DDSX11 has a displacement of 0.11 gal/rev at 60 feet TDH at 300 RPM. It has a typical flow range of up to 70 GPM and an operating speed up to 400 RPM.
Typical Flow Range | Up to 70 GPM |
Displacement | 0.11 gal/rev @ 60ft TDH @ 300RPM |
Operating Speed | Up to 400 RPM |
Discharge Pressure | Up to 52psi operating |
Suction Pressure | Up to 25” Hg (28ft) |
Fittings | 3” 150# Flanged |
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 | 400 Series SS |
|
Bearing Pedestals | Cast Iron |
|
Frame and Covers | SS304 | SS316, Galvanized Steel |
Type | Optional | |
Static | Electric belt and pulley | Gerar reduced direct drive, Air and Hydraulic motor |
Portable | Electric, Gas and Diesel Engine |
|
This might also be interesting
Double Disc Pump - Accessories
We offer a variety of accessory items for Double Disc Pumps to help complete your pump installation, improve the application or make maintenance a little easier. We offer vacuum and pressure sensor and switch assemblies as well as a back pressure valve for low TDH and negative TDH applications. We can also provide pump control panels to include a traditional across the line motor starter or more sophisticated soft start and variable frequency drive (VFD) controls.
Double Disc Pumps - Upgrade and Exchange Program
While we are confident in our pumps’ unmatched durability, reliability and performance, at some point maintenance will be required to keep them operating at optimal performance. That is why at Penn Valley Pump we offer an upgrade/exchange program. You can choose to get an exchange pump identical to the model you have or upgrade to one of the newer models that provide a lower operating speed and improved maintenance features.
Operating Principle of the Double Disc Pump
The Double Disc Pump™ combines the performance features of a positive displacement pump and the principle of ‘induced flow’ to provide versatility in fluid handling. Based on a ‘free disc’ technology, the pump utilizes a unique principle of operation. The pump is based on a non-close tolerance design and is very resistant to wear. With this low friction design the pump can run dry without damage.
Double Disc Pumps Technology Overview
To load this content, approve your cookie preferences and allow the required cookies.
Double Disc Pumps - Technology Overview
Double Disc Pumps Maintenance Disassembly and Reassembly Process
To load this content, approve your cookie preferences and allow the required cookies.
Double Disc Pumps - Maintain-In-Place
Reach out to us