In the cooling mode, the pump uses some heat taken from the house to produce hot water.

Some pumps use a piston instead of a diaphragm.

Large-volume pumps usually use some form of peristaltic pump.

The pump on the left uses a transfer tube valve, and the one on the right uses seat valves.

An impeller or pump used to increase the gas pressure before scrubbing.

An intrathecal pump used to deliver very small quantities of medications directly to the spinal fluid.

Some turbomolecular pumps use magnetic bearings to reduce friction and oil contamination.

Most pumps use carbon dioxide and standard-threaded 16g CO canisters.

While almost all pumps used to be made of leather, pumps now come in a variety of materials, such as suede and wool.

The pumps at present do not use encryption while transmitting information.