Small Börger Rotary Lobe Pump Glossary

Block construction		Timing gear in a one-piece construction housing with a strong bearing frame and durable gear wheel pairing.
Compact construction		High performance in a compact design.
Interior pump protection		Protection plates and liners available from a selection of hardened steel, stainless steel, plastic or ceramic.
Life cycle costs		For the customer, capital cost, energy consumption, maintenance and downtime as well as replacement part pricing levels compare excellently with all other displacement pumps.
MIP		Maintenance in Place: Replacement of wear parts in the blink of an eye, in-situ by service personnel. The way to go in the reduction of maintenance and downtime.
Pump housing		Made from high-quality cast iron, ductile iron, stainless steel or in duplex quality. Thanks to MIP construction an almost limitless operational lifetime is achieved.
Quench		The quench and control liquid filled intermediate chamber, between the pump casing and the timing gear, provides a high degree of safety and is supplied by Börger as standard.
Quick release cover		This is the entrance door to the interior of the pump and provides the quickest possible access to all parts in contact with the pumped medium.
Rotary Lobe Pumps		Self-priming, valveless displacement pumps guarantee pulsation-free and smooth flow patterns; reversible flow by switching the rotation direction.
Rotor materials		Coatings to suit intended usage made from elastomers, plastic, all-metal including stainless steel.
Rotors		The patented rotors with quickly exchangeable tips, elastomer coated or adjustable; scew design for pulsation-free pumping.
Shaft seal		Supplied as standard with strong mechanical seal in different constructions and materials, optional with multiseal or packing. The new DPL size double-acting mechanical seal is especially designed for pumping difficult and hazardous, often viscous media.
Smooth pumping action		Large bucket geometry and short passage through the pump provide a smooth transfer of the pumped fluid.