Suction head

Suction head

The head on the suction side of the pump. This is subtracted from the discharge head to determine the head being produced by the pump. It is a sum of the static, pressure and friction heads.

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Part of Speech: noun
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Industry/Domain: Construction
Category: Plumbing
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suction head

Construction; Plumbing

The head on the suction side of the pump. This is subtracted from the discharge head to determine the head being produced by the pump. It is a sum of the static, pressure and ...

suction head

Mining; General mining; Mineral mining

The head or height to which water can be raised on the suction side of the pump by atmospheric pressure.

net positive suction head (NPSH)

Fire safety; Prevention & protection

The total suction head in meters (feet) of liquid absolute, determined at the suction nozzle, and referred to datum, less the vapor pressure of the liquid in meters (feet) ...

net positive suction head required (NPSHR)

Construction; Plumbing

To stop a pump from cavitating. This number is provided by the pump manufacturer.

net positive suction head available (NPSHA)

Construction; Plumbing

To prevent cavitation of the pump. It is defined as: Atmospheric pressure + gage pressure + static pressure - vapor pressure - friction loss in the suction piping.

head

Industrial machinery; Industrial lubricants

An end closure for the filter case or bowl which contains one or more ports.

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 .

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