Copy of `McNally - pump and seal terms`

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McNally - pump and seal terms Category: General technical and industrial > Pump and Seal terms Date & country: 24/09/2008, USA Words: 312

Anti-friction bearing
Usually referring to a ball or roller bearing

Application
A description of the fluid and operating conditions that we are trying to pump or seal.

Annealing
To soften the metal by heating it to a predetermined temperature somewhere below its melting point.

Anodize
A treatment used on aluminum to put a heavy stable film of oxide on the metal surface.

Alpha sintered
A type of silicone carbide that does not contain silica.

Ambient heat/pressure
The heat or pressure in the area where the equipment is located.

Affinity laws
They predict how capacity, head and horsepower are affected by changes in the centrifugal pump impeller diameter or shaft speed.

Air ingestion
Air is coming into the stuffing box because of a negative suction pressure.

Alignment
The center line of the pump is perfectly aligned with the centerline of the driver (usually an electric motor).

Absolute pressure
Atmospheric pressure added to gauge pressure.

Active metal
A corrosion resistant metal that has not been passivated. The protective oxide layer has not formed.

Adapter
Connects and aligns the power end of an ANSI pump to the wet end.