Model 3DDSX22 Double Disc Pumps™

Ultimate In Sludge Pumps™

Penn Valley Pump Model 3DDSX22 Double Disc Pump

  • Maintain In Place™ design w/ hinged housings
    for quick elastomer replacement without disturbing piping
  • Two-piece swan neck
  • Only 5 wetted components
  • Self-priming with high suction lifts
  • Seal-less design, no packing or mechanical seals, no seal water required
  • Runs dry without damage
  • No check valves, no fouling problems
  • Handles up to 3/4” solids and line size semi-solids
  • No routine maintenance required
  • Custom configurations available
  • Two (2) year warranty


Product Literature

Download Datasheet
Download Side Mount Drawings [PDF]
Download Piggy Back Drawings [PDF]
Download Side Mount Drawings [DWG]
Download Piggy Back Drawings [DWG]
Download Free Adobe PDF Viewer
Download Free Autodesk DWG Viewer for PC
Download Free SolidWorks DWG Viewer for Mac OS X
Note: Please allow sufficient time for Viewer applications to download completely.
Please contact us about ordering replacement parts
uniquely engineered to fit your pump model.

Technical Specifications:

Typical Flow Range:  Up to 120 GPM
Displacement: 0.22 gal/rev @ 60ft TDH @ 300RPM
Operating Speeds: Up to 500 RPM
Discharge Pressure: Up to 52psi operating
Up to 110psi stall pressure
Suction Pressure: Up to 25” Hg (28ft)
Fittings: 3” 150# Flanged


Materials of Construction:

Housings: Cast iron Optional: Lined with Hypalon, Neoprene,
PVC, Tungsten Carbide, others
Elastomers: Neoprene   Buna-N, EPDM, Hypalon, 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 Optional: SS316, Galvanized Steel



Static: Electric belt and pulley Optional: Gear reduced direct drive, Air and
Hydraulic motor
Portable: Electric, Gas and Diesel Engine