Blackmer is the leading global provider of innovative and high-quality rotary vane pump and reciprocating compressor technologies for the transfer of liquids and gasses. For more than a century, the Blackmer name has stood for unparalleled product performance, superior services and support, well-timed innovation and a commitment to total customer satisfaction.

Supported by a worldwide network of distributors and original equipment manufacturers, Blackmer pumps and compressors are used in a multitude of applications in the Process, Energy, Transport and Military-Marine markets.

Blackmer – headquartered in Grand Rapids, Michigan, USA - is a member of Dover Corporation’s Pump Solutions Group (PSG).

Sliding Vane Pumps - These pumps have a number of vanes that are free to slide into or out of slots in the pump rotor. When the pump driver turns the rotor, centrifugal force, rods, and/or pressurized fluid causes the vanes to move outward in their slots and bear against the inner bore of the pump casing forming pumping chambers. As the rotor revolves, fluid flows into the area between the vanes (pumping chambers) when they pass the suction port. This fluid is transported around the pump casing until the discharge port is reached. At this point the fluid is squeezed out into the discharge piping.

Peristaltic Pumps - The Abaque pump operates on the peristaltic principle which was patented in 1925 by Mr. Horthaus of France. It is classified as positive displacement pump meaning that a fixed and known amount of fluid is discharged per revolution of the pump with flow independent of discharge head. The pump operates by compressing a specially designed elastomeric hose between a set of two or more shoes attached to a rotor and the internal wall of the pump case or housing. Fluid in the hose is forced from the inlet side of the pump toward the discharge by the squeezing or compressing motion of the shoes on the rotor of the pump as it rotates. This peristaltic action is in some ways similar in nature to that of the human digestive tract.

Centrifugal Pumps - The simplest type of centrifugal pump is the single stage machine that consists fundamentally of a rotating element, called an impeller, and a casing. Liquid is led to the eye or center of the impeller and is set into rotation by the impeller vanes. By virtue of centrifugal force the liquid is thrown from the rim or periphery of the impeller with a considerable velocity and pressure. The casing, which closely surrounds the impeller, has a volute shaped passage of increasing area, which collects the liquid leaving the impeller, and converts a portion of its velocity energy into additional pressure energy. This casing passage leads to the discharge nozzle of the pump where it is forced into the discharge piping.