Modular Design More available options to suit the customer. Reduced inventory. Simple maintenance. Hollow Drive Shaft Keeps pump length short - helps gland cooling. Positive Displacement Uniform flow, output proportional to speed. Pumps against pressure at low speeds. Handles solids in suspension with little wear. Versatile, free flowing liquids to viscous fluids. Self Priming Will self prime from depths of up to 8.5 metres. Materials of Construction Available in cast iron or stainless steel, with a choice of rotor and stator materials to suit individual applications e.g. hard chrome plated rotor or natural rubber stator. Low Running Speeds Reduced wear for a longer working pump life which extends the periods between routine maintenance. Think of the savings you could make on abrasive applications. Gentle Pumping Action Minimises shear and crush damage to the pumped product. Quiet running - a desirable feature for domestic installations. Easy Maintenance Few parts, easy to dismantle, requiring little skill. Rotor/coupling screwed connection. Sturdy components giving long reliable life. Robust Drives Specially selected drives and gearboxes for longer life. Options include electric motordrive units supplied as overhead vee belt driven, direct-coupled or variable speed drives with mechanical variable speed or frequency inverter. Capacity up to 60m3/h • Digested sewage sludge, lime, filter pressed sludges, raw sewage Pressure up to 10 bar • Clay slurry, bentonite slurry, latex, coatings, ceramic slip Temperature -10°C up to 100°C • Cooking oil, molasses, whey • Grouting mixes, nuisance water • Diesel fuel oil, ethylene glycol, caustic solutions [email protected] nov.com/industrial ©National Oilwell Varco - All rights reserved - 10494_ENG_v01