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Parts per million
Parts per million (ppm) is used to denote relative proportions in measured quantities; particularly in low-value (high-ratio) proportions.
Performance curve
The pump performance curve shows the correlation between media flow (Q) and the pressure differential or head (H) that the pump creates.
pH is the measure of the acidity or alkalinity of a solution and ranges from 0-14.
Pilot Pump
A smaller pump used as a supplemental pump in booster applications.
Pilot valve
Pilot valves are often used in larger refrigeration plants with many consumers.
Pipe heat loss
Pipes that distribute a heating medium lose some heat to the surroundings.
Pipe insulation
Pipes carrying hot media are insulated to minimise unintentional heat loss.
Pitting corrosion
Pitting corrosion is a localized form of corrosive attacks. Pitting corrosion forms holes or pits on the metal surface.
Plate heat exchanger
A plate heat exchanger is a heat exchanger that is used to transfer heat from one fluid to another.
Power curve
The power curve shows the power consumption of the pump at a given flow.