P31 Series regenerative turbine pumps

Made of stainless steel, P31 Series regenerative turbine pumps feature capacities of up to 5 gal/m and heads to 250 ft and can operate at temperatures up to 250°F. When installed with an integrated relief valve, the pump’s flow can be rerouted from the outlet to the inlet through the relief valve chamber.The specified relief valve setting is an average and individual pumps will vary both above and below the specified setting. The relief valve actually cracks open and begins to bypass flow at approximately 50 psi below the relief valve setting. The standard relief valve is made of a special high-temperature plastic. All P31 pumps can fit onto ultra-compact 36 frame UL- and CE-approved motors. Optional motors with higher horsepowers, solid-state starting, TEFC enclosures, and 3-phase capabilities are also available.