Griswold, part of PSG, has launched its new 811SP Series self-priming centrifugal pumps, extending the company’s portfolio of chemical process centrifugal pumps into self-priming applications.
The pumps have common components with the Griswold 811 ANSI Series and offer pump and part interchangeability with competitor models. This allows the 811SP Series to be installed in thousands of applications worldwide, providing users with high levels of performance and maximum flexibility under harsh and difficult fluid-processing conditions.
The Griswold 811SP Series offers ductile iron frame adapters to increase durability and safety, maximised oil capacity for improved heat transfer to extend bearing life and external clearance adjustment to maintain original flow, pressure and efficiency. Pumps also have heavy-duty shafts and bearings to minimise vibration and shaft deflection, a magnetic drain plug to collect contaminants and protect the pump, a fully open impeller for better handling of solids and abrasives and extensive sealing options.
The 811SP Series meets ASME specifications and is available in eight different sizes with flow rates up to 1,300 gpm (295 m3/hr) and can operate in temperatures up to 500°F (260°C).