The Desmi DOP-160 Submersible Screw Pump is designed to allow manual deployment of multiple units in an oil spill, pumping the oil at reduced hydraulic power and hose size. Weighing 55 pounds, the DOP-160 is a positive-displacement pump with a cutting knife fitted to the leading edge of the screw for handling debris. The knife will cut plastics, rope, and other materials that often lurk in the oil.
The DOP-160's capacity exceeds 110 GPM at discharge pressures up to 10 bar for a range of light or heavy liquids. The unit's Archimedes hydraulically-driven screw interfaces with a rotating sealing plate wheel with replaceable sleeves of high-density polyethylene. This system, according to the company, can swallow slugs of water while pumping extremely viscous fluids without losing its prime. The 160 features a single-piece pump casing.
Ro-Clean Desmi A/S, 2551 Eltham Ave, Suite G, Norfolk, VA 23513. Tel: 757-857-3169; Fax: 757-857-6989.