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Pipe insulation
Pipes carrying hot media are insulated to minimise unintentional heat loss. Heat loss will cool the media while heating the room in which the pipe is located. Both are undesirable.
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.
Power factor
The power factor is the phase angle between voltage and current (cosφ)
Pressure
Pressure is used to circulate liquid in a heating or cooling system and is induced by means of pumps. The pressure in a system is positive in relation to atmospheric pressure.
Pressure boosting system
A pressure boosting system is designed to increase low pressure in a water system in order to achieve sufficient water flow and pressure to consumers.
Pressure holding
A system for maintaining a constant static pressure is used in heating and cooling systems to order to ensure uninterrupted operation.
Pressure holding pumps
Pressure holding pumps are be used to maintain a constant pressure in a closed heating or air-conditioning system.
Pressure reducing valve
A pressure reducing valve measures the pressure of the discharge side of the valve. Its task is to hold the set pressure constant.