Gorman Rupp Roto Prime Series

Self-Priming Centrifugal Pumps


Roto-Prime pumps are actually two pumps in one: a variable capacity vane pump used during the priming cycle, and a standard centrifugal pump to move the liquid. Whenever air or vapour is present at the start of the pumping operation – or when there is a loss of suction because of air or vapour during pumping – the priming pump automatically moves air and vapour from the suction line to the discharge line. Once the flowing liquid from the centrifugal portion of the pump builds up sufficient pressure in the discharge system, the pressure backs up through a tube to act on the bottom of the priming pump’s movable slide block, placing it in a neutral position during normal operation. Pump Size Range: 3” (75 mm) x 2” (50 mm) to 6” (150 mm) x 5” (125 mm) Max. Capacity: 92.1 lps Max. Head: 118.9 m Materials of Construction: Aluminium Impeller, Ductile Iron or Cast Steel Housing, Steel or Stainless Steel Shaft, Fluorocarbon Mechanical Shaft Seal


Roto-Prime priming assisted centrifugal pumps are specifically designed for pumping petroleum products, petrochemicals and solvents. The Roto-Prime design incorporates a variable capacity vane pump which quickly and automatically evacuates air and vapour, making the pump ideal for loading and off-loading transports and stripping hoses.

Manufacturer: Gorman Rupp

Industry: Mining, Oil And Gas, Industrial

Pump Uses: Chemical Pumping, Petroleum Pumps

Pump Type: Centrifugal

Pump Style: Self-Priming Pumps