A variable area flow meter which consists of a tapered tube of glass with a float inside that is pushed up by flow and pulled down by gravity.

A positive displacement compressor in which compression displacement is effected by the positive action of rotating elements.

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 'well drilling system' and an 'artefact' in which the torque is transferred to the drill string using rotary table and kelly.

A detecting element that is intended to sense rotational speed.

A router is a computer networking device that forwards data packets toward their destinations through a process known as routing. Routing occurs at layer 3 (Network layer) of the OSI seven-layer model.

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.

safety barriers are devices that limit the current, voltage, and total energy delivered to a sensor in a hazardous area or flammable environment in order to prevent an explosion.

An information object that indicates the location of safety signs and other relevant safety information.

A shower intended for emergency situations.

An information object with a symbol representing some hazard or safety information.

A cylinder that is specially designed to collect and store high pressure gas samples from the field & transport the same to laboratories

A 'cooling device' that is intended for cooling a sample.

A sample loop adds a predetermined volume to the process.

container in which the sample is collected, stored, and transported to the analytical equipment.

A physical object intended to be used to collect and contain representative specimens or selections.

A detector intended to detect sand in a fluid.

Equipment used to allow drainage of foul water.

a system that provides voice and telefax communication via satellites.

A physical object intended to mechanically remove a deposit from a surface.

is a conveyer intended to move dry, solid material from one location to another by means of a helix or screw rotating in a cylindrical conduit.

A distillation column intended to clean gas by washing the gas flow with water or with another liquid entering at the top of the vessel and sprayed in the gas. Typically to remove dust and small particles.

A physical object intended to reduce or prevent the passage of fluid through an opening.

Equipment used for room separation.

A feature which is each of several parts into which a thing is or can be divided or marked off.