Drain valve

A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types.

combustor drain valve

Aviation; Aeronautics

A spring-loaded valve in the bottom of the combustor outer case to drain fuel from the combustor after an aborted start. The combustor drain valve is spring-loaded to its open ...

internal supercharger drain valve

Aviation; Aeronautics

A pressure-operated valve in the bottom of the internal supercharger section of a reciprocating engine that is open when the pressures inside and outside the supercharger housing ...

valve

Industrial valves; Control valves

A device which dispenses, dissipates, or distributes energy in a system.

cistern

Construction; Architecture; Building/real property; Carpentry; Demolition/excavation

water recipient like a well or a tank

acrylic

Construction; Plumbing

A thermoplastic (heat activated) used on the surfaces of bathtubs and whirlpools. It usually comes in sheets and is backed by fiberglass to form waterproof shower walls.

adaptor

Construction; Plumbing

A fitting that unites different types of pipe together, for example: ABS (Aristocraft bristone styrine) to cast iron pipe.

alkalinity

Construction; Plumbing

The measurement of constituents in a water supply which determine alkaline conditions. The alkalinity of water is a measure of its capacity to neutralize acids, also referred to ...

aerator

Construction; Plumbing

A device screwed into the end of a faucet spout that mixes air into flowing water, and controls flow to reduce splashing. It sometimes contains a baffle to reduce flow to 2.5 gpm.

acidity

Construction; Plumbing

The level of concentration of acid in water. Acid will neutralize an alkali or base. It is usually expressed in terms of its calcium carbonate equivalent .