Positive Displacement Pumps

Positive Displacement Pumps from John Brooks Company Limited – well know distributor of industrial pumps Canada. Positive Displacement pumps are commonly used for pumping high viscosity fluids such as oil, paints, resins or foodstuffs. They are preferred in any application where accurate dosing or high pressure output is required.  the output of a  pump is not affected by pressure so they also tend to be preferred in any situation where the supply is irregular. These pumps pump move a fluid by repeatedly enclosing a fixed volume, with the aid of seals or valves, and moving it mechanically through the system. The pumping action is cyclic and can be driven by pistons, screws, gears, lobes, diaphragms or vanes. There are two main types: reciprocating and rotary