AIR CONDITIONING EXPANSION VALVE

Watts Vacuum Relief Valve

relief valve


The relief valve (RV) is a type of valve used to control or limit the pressure in a system or vessel which can build up by a process upset, instrument or equipment failure, or fire.


A device designed to open if it detects excess temperature or pressure. Commonly found on water heating or steam producing systems.


safety valve: a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level

vacuum


A space entirely devoid of matter


clean with a vacuum cleaner; "vacuum the carpets"


the absence of matter


A gap left by the loss, death, or departure of someone or something formerly playing a significant part in a situation or activity


A space or container from which the air has been completely or partly removed


void: an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he'll be ruling in a vacuum"

watts


(watt) a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm


(watt) Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)


A district in southern Los Angeles in California, home to much of the black population of the city


English poet and theologian (1674-1748)