A valve that is a valve where the closure member is a disc or piston operating with linear motion normal to the flat or shaped seat.

A physical object that is designed to load or unload products into or from vehicles, wagons or vessels at variable positions.

A valve that is regulated with hand power.

An operated valve that is opened and closed with a motor.

A valve not designed to regulate flow (e.g. on/off). A valve with multiple orifices or flow-restriction device to control fluid flow. Includes an actuator that needs auxiliary power to operate.

A valve not designed to regulate flow (e.g. on/off). A multi port valve which has the possibility of multiple distinct paths for flow through it. Includes an actuator that needs auxiliary power to operate.

A valve that has three or more ports arranged to switch flow.

A needle 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 globe valve that has a closure member with the shape of a conical plug (needle) which closes into a small seat.

A physical object that is a long tube or hollow body intended for conduction of liquid, gaseous or finely divided solid materials, or used for structural purposes.

A fluid conductor that consists of pipe, possibly also including pumps, valves, and control devices, intended for conveying liquids, gases, or finely divided solids.

A lift check valve that has a free gravity or spring loaded piston type closure member.

A control valve that is also a plug valve and an actuated valve.

A rotary valve that has a quarter turn action in which the closure member is a cylindrical or tapered plug which operates by rotating on its axis and sealing against a downstream seat.

A regulator that is controlling/regulating the pressure in a system.

A physical object that is a vertical or near vertical pipe for the upward flow of liquid or gas.

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 valve that includes a means of operation (e.g. spring / gravity / fluid pressure / counter balance), and is not depending on an external source of energy.

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 valve that opens and closes a passageway by sliding over a port.

A valve that has linear action which is fitted with a solenoid for quick operation.

Flexible pipe, wholly or in part, resting on the seafloor or buried below the seafloor, and used in a static application.

A check valve that is a check valve where the closure member is a disc which swings freely on a hinge and which opens automatically when flow is established and closes automatically when flow ceases or is reversed.

An artefact joining two parts so that one or both can pivot freely (as on a bolt or pin).

A regulator that is intended to keep a temperature within certain boundaries.