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Dry cooler
A dry cooler is an air-cooled device that is used in connection with removal of excess heat.
Dry installation
In a dry installation the pumps are not submerged in the pumped liquid, but installed next to the sump.
Dry running protection
Hydro Boosters, Hydro MPC, Hydro Multi-E, Hydro Multi-S, Pressure/level switch, pressure transmitter, level transmitter, dry-running.
Dry weather flow
Dry weather flow refers to the wastewater flow in a sewer system during periods of dry weather with minimum infiltration.
Duty point
The duty point is at the intersection between the Q-H curve and the system characteristics.
DX system
A DX system is a cooling system where the primary coolant is used for evaporation.
Dynamic pressure
In a closed, pressurised system with a circulating media, the total pressure consists of two elements; a static pressure and a dynamic pressure.