Hydraulic & Automation Warehouse (HAW) has added newly developed cast iron gear pumps with extended longevity to its existing range of Salami gear pumps and other hydraulic components.
The PG331 series comprises spheroidal cast iron gear pumps with more than 19 000 configurations and four different porting arrangements. They can be supplied with different displacements and have up to five flange mounting styles and seven shaft types. The pump design also allows for standard SAE flanges. The gear pumps are also compact. “Competing models generally have larger and longer front and rear housings to accommodate shaft supports which may separate port housings and are therefore less compact,” explains HAW key accounts manager, Dries van Wyk.
This range of pumps can accommodate any engineering design and satisfies a variety of OEM manufacturing designs. Strength, high efficiency and long service in severe operating environments are achieved through the pump’s one-piece drive shaft construction, with a large area and low friction bushings. In addition an advanced thrust plate design and high quality machining tolerances optimise performance and high volumetric efficiency throughout the full pressure range. This allows for excellent axial compensation. Moreover, PG331 gear pumps feature double shaft seals on pumps with reinforced inner shaft seals for motors so performance is optimised, even at high temperatures and under low viscosity conditions.
Another advantage of this pump range is the high carbon content and low static discharge capability, which render them explosion-proof, making them the ideal choice for use on underground vehicles and equipment.
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