The term valve refers to a piece of equipment that will allow a liquid to flow through it but also close to stop the flow also, in other words it is a liquid flow controller. They are of various designs from simple to quite complex.Below is a small example of the names and also their function:The Globe: This valve incorporates a shaft in which something called a stopper will sit. The stopper will move up or down allowing the water to flow through. This valve is employed in situations where flow adjustment is required. An Eltham Plumber fits and maintains these type of valves.The Butterfly: The butterfly valve is fitted with a disc fitted inside. The disc will be the same diameter as the pipe in which it sits. The disc is also attached to a lever to operate, again to adjust flow.The Gate:The gate is employed in straight flowing systems. It has the second name of the sluice valve. The valve operates by a wheel driven wedge in side the shaft to control flow. Eltham Plumbers are experienced tradesmen.The (main) Stop: The stop valve is probably the ideal type of valve to fit in a fluid system that is going to require a great deal of water pressure and is normally the valve that is fitted to a domestic mains supply to isolate the water from entering the home and is usually fitted somewhere in front of a residential property for ease of access in emergency and maintenance situations.The TRV:The thermostatic radiator valve gives the homeowner control of the water that is flowing through their radiators by the use of a thermostat which is internally fitted in its body. The water heat will dictate the action of the valve and can be set by the homeowner. This is an ideal way of controlling seperate rooms and their uses. This saves wasting heat and money.