RamParts Pumps Sealless Diaphragm pump

A super heavy duty, sealless Diaphragm pump designed for continous operation of the most demanding fluids. Whether it be sludge, abrasives, corrosives or any combination of the three, RamParts® pumps are built to take the punishment.

  • Size Range 1½" - 6"
  • Flows to 380 GPM
  • Pressures to 125 PSIG
  • Temperatures to 300° F

A unique continuous heavy duty sealless pump designed to reliably stand up to the most corrosive and abrasive liquids. Our rugged design overcomes the most difficult and abrasive liquids that destroy progressive cavity, lobe and double diaphragm pumps. We can pass large solids with a diameter up to 6 inches while keeping the solids suspended in the liquid. Low internal fluid velocities and the cycle nature of the flow maintain solids in suspension without damage.

The Ramparts P Series Pump is built with high strength ductile iron or with extra thick molded Neoprene, Nordel, Nitrile, Viton, or ETFE linings to meet your specific application.

Service parts can be easily replaced without removing the pump from the piping and at minimal cost as compared to our competitors.

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1. The P-Series Diaphragm-Assist Air Cylinder

RAMPARTS P-Series pumps incorporate the proprietary diaphragm-assist air cylinder design that conventional RAMPARTS Air Driven Diaphragm pumps have been known for. As with competitive air driven diaphragm pumps, the air cylinder pulls the pump diaphragm through its suction stroke. However, unlike ‘spring-assist’ competitive designs, the cylinder-assist presents virtually no resistance as the pump moves through its discharge stroke. With less energy required for operation, the pump is more efficient, utilizing lower air pressure by comparison than competitive pumps. Lower air pressure also means less differential pressure across the diaphragm, resulting in less stress and longer life. The RAMPARTS P-Series design takes further advantage of the cylinder-assist by providing precise compressed air flow control through the pump controller. Precise control allows the pump operation to be matched with the characteristics of the liquid being pumped, as well as the individual suction characteristics of the application.

ISO Certified