Return flow temperature
The temperature of the liquid has on after it has been his work on primary and secondary side.
Supply pipe temperature
The temperature of the liquid has before it performs its work on primary and secondary side.
Refers to the distribution system in the facility in question is usually the internal main system.
Refers to the part that the shunt system shall provide for the establishment in question, for example, the heat of a fan heater, heating system, etc.
The flow that each side needs to leverea the desired effect at the current temperatures.