D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.
Centrifugal pumps which are not designed with an internal or external self-priming stage can only start to pump the fluid after the pump has initially been primed with the fluid. In addition, a suction-side swing check valve or a vent valve must be fitted to prevent any siphon action and ensure that the fluid remains in the casing when the pumpMore
Gorman-Rupp self-priming centrifugal pumps are easy to install and easy to service. Because they’re self-priming, they can be mounted high and dry at floor level with only the suction line in the liquid there’s never a need for service personnel to enter the sump. When service or maintenance is required, it can be completed easily withMore
How does a Self-Priming Centrifugal Pump Work? A self-priming centrifugal pump has two phases of operation: priming mode and pumping mode. In its priming mode, the pump essentially acts as a liquid-ring pump. The rotating impeller generates a vacuum at the impeller’s ‘eye’ which draws air into the pump from the suction line.More
MP Pumps brings more than a half century of experience in the design and manufacture of centrifugal pumps to each new project. Self Priming Pumps FLOMAX® 5 FLOMAX® 5 HYDRAULIC FLOMAX® 5 and 8 Double Seal FLOMAX® 8More
Standard (non-self-priming) centrifugal pumps come in many types. When they operate on flooded suction lines or in submersible applications, the impeller is surrounded by enough water to create the pressure differential and thus to pump water. Air is the main enemy of a standard (non-self-priming) centrifugal pump.More
Engine Driven and Diaphragm Pumps; High Pressure / Firefighting Engine Driven Pumps; Pedestal Drive Pumps; Self-Priming Electric Pumps; HVAC / Multistage Pumps; Straight Centrifugal Pumps; Submersible and Sump Pumps; Coolant Pumps; Specialty Pumps; Drum Pumps; Pump Accessories and Hose; AMT Tech Tips Blog; Resources. Owners Manual Search; AMTMore
WHAT IS A SELF PRIMING PUMP? A self priming pump is like any other centrifugal pump, but it is designed with an external casing that “floods” the inner pump or volute. The casing is filled with liquid [usually the same as the liquid to be pumped] and the pumpMore