A positive displacement pump that consists of a chamber containing gears, cams, screws, vanes, plungers or similar elements actuated by relative rotation of the drive shaft or casing and which has no separate inlet and outlet valves.
A detecting element that is intended to sense rotational speed.
A physical object that is a pressure relieving device designed to burst at a calibrated pressure to prevent pressure in systems or vessels from reaching unsafe levels.
A sample loop adds a predetermined volume to the process.
A physical object intended to be used to collect and contain representative specimens or selections.
A detector intended to detect sand in a fluid.
A manual control switch which has more then two possible positioning states.
A 'device' intended to separate different types of substances.
A tank gauge that is intended to intermittently lower a displacer to measure a liquid level, bottom level, interface level or density.
A tubular heat exchanger in which a tube bundle is surrounded by a shell.
A physical object that is transparent and intended for viewing a vessel or piping system interior.
the part of a power system, concentrated in a given place, including mainly the terminations of transmission or distribution lines switchgear and housing and which may also include transformers.
An electric signal transducer that is intended to convert one type of standardized transmission signal into another.
A physical object intended to reduce a noise level.
An acoustic device producing a loud sound as a signal or warning.
A slide valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.
A smart meter is an electronic device that records information—such as consumption of electric energy, voltage levels, current, and power factor—and communicates the information to the consumer and electricity suppliers.
A device that measures and communicates water usage from consumer to provider to facilitate water management and proper billing.
A detector that is intended to sense smoke.
An electromagnetic coil, which is a cylindrical coil, the length of which is much greater than its transverse dimensions and which is used to produce a magnetic field.
A valve that has linear action which is fitted with a solenoid for quick operation.
An analyser intended to determine a mixture of solid particles in liquids or solid or liquid droplets in air.
A meter intended to measure a sound pressure level.
An analyser intended to determine specific gravity's of materials. Typically of liquids.