Whois & Analysis for watson-marlow.com

A peristaltic pump is a type of positive displacement pump used for pumping a variety of fluids.

The fluid is contained within a flexible tube fitted inside a circular pump casing (though linear peristaltic pumps have been made).

A rotor with a number of "rollers", "shoes", "wipers", or "lobes" attached to the external circumference of the rotor compresses the flexible tube.

As the rotor turns, the part of the tube under compression is pinched closed (or "occludes") thus forcing the fluid to be pumped to move through the tube.

Additionally, as the tube opens to its natural state after the passing of the cam ("restitution" or "resilience") fluid flow is induced to the pump.

This process is called peristalsis and is used in many biological systems such as the gastrointestinal tract.

Typically, there will be two or more rollers, or wipers, occluding the tube, trapping between them a body of fluid.

The body of fluid is then transported, at ambient pressure, toward the pump outlet.

Peristaltic pumps may run continuously, or they may be indexed through partial revolutions to deliver smaller amounts of fluid.

A metering pump moves a precise volume of liquid in a specified time period providing an accurate flow rate.

The gallon is a unit of measurement for liquid capacity in both the US customary units and the British imperial systems of measurement.

Three significantly different sizes are in current use: the imperial gallon defined as litres, which is used in the United Kingdom, Canada, and some Caribbean nations; the US gallon defined as, which is used in the US and some Latin American and Caribbean countries; and the least-used US dry gallon defined as.

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.

Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.

In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.

Fluids are a subset of the phases of matter and include liquids, gases, plasmas, and to some extent, plastic solids.

Fluids are substances that have zero shear modulus, or, in simpler terms, a fluid is a substance which cannot resist any shear force applied to it.