Browse the glossary using this index

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P

PCB

printed circuit board

PH

potential of Hydrogen

PLC

programmable logistic controller

Pressure differential

difference between make pressure and break pressure.

Pressure exchanger

device which transfers hydraulic energy from a high-pressure fluid flow to a low-pressure fluid flow.

Pressure range setting

pressure range within which the unit will give a signal (contact changeover).

Pressure switch

device that operates an electrical contact when a pre-set fluid pressure has been reached on its input.

PS

port side

PW

potable water