Is a a valve where the flow follows a radial annulus around the axial seat and spring case, passing straight through the valve with very little deviation

A ball 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 butterfly 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 dynamic pump that contains impellers provided with vanes to generate centrifugal force to achieve the required pressure head.

A valve that permits fluid to flow in one direction only.

A choke 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 physical object that is an assembly of pipes and piping parts, with valves and associated control equipment that is connected to the top of a wellhead and is intended for control of fluid from a well.

A gravity separator where two liquid substances separates and where the substance with the less gravity can be skimmed off.

A pinch 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 pressure relief valve that has its closing force provided by a spring.

A separator intended to separate by rotation based on difference in densities

A diaphragm 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 has a closing member which is an eccentric rotating disc.

An arrestor which is a trap over an opening, e.g. of a ventilation system or a pipe, to prevent flames from entering the system.

A flexible vertical or near vertical pipe for the flow of liquid or gas between the seabed and the surface.

A control valve that is a gate valve and an actuated valve.

A control valve that is a globe valve and an actuated valve.

A cyclone separator intended to separate a fluid by hydraulic forces.

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 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 pressure relief valve that uses a pilot valve to indirectly activate the main valve.

A non-reclosing pressure-relief device actuated by the static differential pressure between the inlet and outlet of the device.

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

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