Plunger Pumps

The plunger type positive displacement pump was first introduced to the municipal wastewater treatment industry by the Ralph B. Carter Company in the early 1930's. From that time to now, the plunger pump has been a mainstay of wastewater treatment plant design. The significant reason for this durability of application has been the success of this pump design in handling both the difficult to pump sludge streams with in the treatment process, and in a pump design which allows for the often erratic service and maintenance procedures practiced at many municipal plants. Although no piece of equipment can function without service or significantly beyond design parameters, the plunger pump's simple and basically rugged design will, in most cases, "forgive" poor maintenance and periodic excess pressure and load conditions without failure. The dividend of proper maintenance and application has been extremely long service life, in some cases, as long as 45 years of continuous operation.



What is a Plunger Pump?
A plunger pump utilizes ball type check valves to direct the reciprocating action of a plunger into a useable pumping force. The check valves are mounted to the pumping chamber so that one valve, suction, will allow fluid only to pass into the pump, and the other pump, discharge, will only allow fluid to flow out of the pump. As the plunger moves upward from its lowest point of travel, a vacuum is developed which will seat the discharge ball valve and raise the suction ball valve. Fluid will then flow into the pump chamber. Once the plunger has reached its highest point of travel, the hydraulic circle is complete. As the plunger now moves from the high position , a positive pressure is developed, with this pressure seating the suction ball valve and raising the discharge ball valve allowing the fluid to flow out of the pump.

You can now use the Carter Plunger Pump Selection System to assist you in your search for the pump which fits your specific needs.

VIEW CARTER PUMP'S PLUNGER PUMP BROCHURE

CARTER PUMP SPECIAL FEATURES


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