The Gorman-Rupp Roto-Prime is a self-priming centrifugal pump built to handle solids and slurries with ease. For applications such as wastewater treatment plants, mining operations, and construction sites where a high-efficiency, non-clogging pump is pivotal, this pump carries innovative design features that put it ahead of the competition.
Above all, the key advantage of the Roto-Prime Pump is its ability to automatically control air intake and prime itself. 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, this pressure backs up through a tube to act on the bottom of the priming pump's moveable slide block, placing it in a neutral position. Under these conditions, the priming pump no longer evacuates air but merely circulates a small amount of liquid.
This centrifugal pump is also designed with simple maintenance in mind, with a removable cover plate and cartridge-type mechanical seal.
With air or vapor in the lines, pressure of the spring on top of the movable slide holds the priming pump in full pumping position.
As the pump evacuates air and vapor from the lines, liquid pressure builds up on the underside of this slide, moving it upward toward neutral.
When air and vapor are removed, liquid pressure equalizes spring pressure and the pump automatically slides into neutral... where it remains until air and vapor again appear in the system.
1460 GPM (92.1 lps)
390’ (118.9 m)
Max Operating Speed
RS Series (single volute) 1750 rpm, RD Series (double volute) 3450 rpm
Aluminum Impeller, Ductile Iron or Cast Steel Housing, Steel or Stainless Steel Shaft, Fluorocarbon Mechanical Shaft Seal*
Call Hydromarque on +44(0)1733 370545 or click the link below and contact one of the team for a data sheet on the Gorman Rupp Roto-Prime pumps.
Call Hydromarque on +44(0)1733 370545 or click the link below and contact one of the team for a parts list on the Gorman Rupp Roto-Prime pumps.
Call Hydromarque on +44(0)1733 370545 or click the link below and contact one of the team for a O&M Manual on the Gorman Rupp Roto-Prime pumps.