Dynamic balancing with HERZ differential pressure Controller
The 5 important reasons at a glance
Continuous adjustment of the required differential pressure of a system is crucial in building services to ensure that heating or cooling systems function properly. With static valves, only one operating condition (usually full-load operation) can be optimally catered for. However, the majority of a system's operating time normally falls into the part-load range. This means permanent pressure and flow changes in the plant. If the differential pressure is too high, this can lead to excessive energy consumption and overheating. On the other hand, a low differential pressure leads to insufficient heating or cooling of the rooms.
Dynamic differential pressure controllers play an important role here. They ensure that the desired temperatures are achieved in the various rooms of a building by responding independently to changing flow and pressure conditions. Thus, the system runs efficiently and in a balanced manner.
Automatic regulation
Differential pressure control valves regulate the pressure difference between the supply and return of a system by adjusting the flow of the heating or cooling medium in a system with the correct pressure. If you close a thermostatic valve on the radiator, there will be a lack of resistance in the system, causing other parts of the system to receive more flow. The differential pressure controller automatically responds to these changes and opens or closes depending on the system situation. In this way, all parts of the system are supplied at all times with the amount of energy currently required.
Efficiency increase
Automatic adjustment of the differential pressure and thus the flow in the plant prevents over- or undersupply of plant components. This ensures energy-efficient operation and leads to a lower environmental impact.
Hydraulic balancing
Differential pressure control valves also play an essential role in hydraulic balancing. Hydraulic balancing is a process in which the flow of heating or cooling water in the various parts of a system is adjusted so that each room or area receives the required amount of heat or cold. This is done by adjusting the differential pressure. Differential pressure controllers ensure that the proper pressure differential is maintained to ensure the required flow in the system.
Energy and cost saving
The use of differential pressure control valves and the associated guarantee of hydraulic balancing can significantly reduce energy consumption in heating and cooling systems. This leads to lower operating costs.
Comfort
Excessive differential pressure in the system can cause noise in pipes and fittings. The use of differential pressure control valves prevents the heating medium from flowing through the pipes at too high a velocity and thus prevents this problem. In addition, even heat distribution in a system leads to satisfied customers, as all occupants receive the desired room temperature in all rooms.
HERZ offers a wide range of dynamic differential pressure control valves. There are types with adjustable differential pressure range, with fixed differential pressure set point as well as versions with connection thread for actuators.
HERZ Differential pressure controller in flange design DN 65 - DN 200 Order number: F 4007 XX
HERZ Differential pressure controller in female thread design Order number: 1 4202 XX
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