Plenty Mirrlees Pumps designs and manufactures Rotary Positive Displacement Pumps for use primarily in the Oil, Power Generation, Marine and Sugar Industries. The Plenty Name is recognised worldwide as a mark of excellence in the field of reliable engineering. Company founded 1790. The product range includes:- Triple Screw Pumps for lubricating liquids on applications such as forced lubrication, seal oil circulation, oil firing and general liquid transfer. Twin Screw Pumps for bulk liquid transfer and ship, rail and road loading/unloading, including non-lubricating liquids.