Double Diaphragm Pumps

Updated Jul 29, 2010

Diaphragm pumps are ideally suited for all sectors of the construction industry as well as for municipal and industrial applications where dry priming pumps are required. They are particularly useful for pumping muddy water, sludge or any liquid with a high percentage of solids. One of the best features of the diaphragm pumps is that they can run dry indefinitely without damage.


Construction: Open pit dewatering; low-volume bypass; cleaning manholes; slurry transfer

Water Treatment: Pumping out neutralized sludge; cleaning cesspools/septic tanks

Industry: Pumping out sludge; paper mills; food processing; wood pulp; water with wood chips; bilge pumping; dyes; cutting water; circulation; juices; must; wort; wine lees; effluent from washing textiles or fibers


  • Automatic dry priming
  • Quick dry prime from 20 feet
  • Self-priming, positive displacement
  • Able to run dry indefinitely
  • Passage of large solids
  • Lightweight rugged construction
  • High resistance to abrasive and corrosive liquids
  • Wear parts are easily replaced
  • Rotating parts do not come in contact with the pumping liquid
  • Optional spring-loaded connecting rod to protect against pump casing damage
  • Optional stainless steel wear plates and optional ball valves for the suction and discharge are available.
  • Long lasting neoprene diaphragms and suction and discharge check valves standard. Other materials are optional
  • Various diesel and gasoline engine and electric motor options
  • Simple low-cost maintenance
  • Economical to operate
  • The Attachments Idea Book
    Landscapers use a variety of attachments for doing everything from snow removal to jobsite cleanup, and regardless of how often they are used, every landscaper has a favorite attachment.
    Attachments Idea Book Cover