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Roto-Prime® Self-Priming Centrifugal Pump
Brand: Gorman-Rupp PumpsRoto-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 vapor, making the pump ideal for loading and off-loading transports and stripping hoses.
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 vapor is present at the start of the pumping operation – or when there is a loss of suction because of air or vapor during pumping – the priming pump automatically moves air and vapor from the suction line to 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.
Features- Whenever air or vapor is present at the start of the pumping operation - or when there is a loss of suction because of air or vapor during pumping - the priming pump automatically moves air and vapor 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.
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1 - 12 of 22 Part Numbers
Specifications
Brand
Size
- 2” (50 mm)
- 3” (80 mm)
- 4” (100 mm)
- 5” (125 mm)
Maximum Capacity
- 1460 GPM (92 lps)
Maximum Head
- 390' (119 m)
Maximum Solids
- 0-1/2” (13 mm)
Maximum Temperature
- 160° F (71 C)
Materials of Construction
- Cast Steel
- Ductile Iron