District heating is not only an environmentally friendly and efficient way of supplying heat, but also an important building block for sustainable energy concepts. Reliable components are crucial to realising this technology's full potential. HERZ offers a comprehensive range of district heating transfer stations and district heating valves – from precise control to efficient distribution. Whether for residential buildings, hotels or commercial properties, our solutions ensure maximum efficiency, comfort and sustainability.

HERZ District Heating Transfer Stations

HERZ District Heating Transfer Stations play a central role in the efficient distribution of heat in residential and commercial buildings. As the link between the district heating network and the consumers, the district heating transfer station transfers and measures the delivered heat quantity and enables integration into a remote monitoring and control system.

HERZ offers customisable district heating transfer stations depending on the application. The following applies in principle: On the primary district heating side, the output of all district heating transfer stations is controlled electronically. The installation of a heat meter is prepared. The good accessibility of components enables user-friendly maintenance. Particular attention is paid to the training of users by HERZ specialists in the operation and maintenance of the district heating transfer station.

HERZ District Heating Transfer Station 16 - 213 kW

The HERZ District Heating Transfer Station 16 - 213 kW particularly stands out due to its compact design. The model is ideal for supplying single- and multi-family homes, but also for commercial enterprises, and is available in 13 different output sizes. A generously dimensioned stainless steel heat exchanger and the corresponding pipework guarantee low pressure losses on both the district heating side and the heating side.

Depending on the power range and temperature, the station is designed to be either wall-mounted or free-standing. The following applies as a guideline:
Wall-mounted: 16 kW; 32 kW; 47 kW; 63 kW; 78 kW.
Floor-standing: 93 kW; 108 kW; 122 kW; 135 kW; 148 kW; 172 kW; 194 kW; 213 kW

This guideline applies at primary temperatures of 85/52 °C and secondary temperatures of 70/50 °C.

HERZ District Heating Transfer Station 20 kW - 4 MW

HERZ district heating transfer stations 20 kW - 4 MW are designed according to the special requirements of the respective plant. As a wall-mounted station or as a free-standing district heating transfer station with a steel frame and adaptable height, the dimensions can be adapted to the intended installation location. Depending on the dimensions, the stations can be delivered as a single unit or in several modules. All stations are factory tested and ready for use.

HERZ District Heating Valves

HERZ offers a wide range of district heating valves, from differential pressure controllers to pressure independent control valves, both threaded and flanged. District heating valves are installed in house transfer stations in the district heating network on the primary side. The advantage is that the application range for temperatures up to 150 °C and operating pressures between 16 - 25 bar is guaranteed. This is ensured by special seals made of EPDM (ethylene-propylene-diene rubber). The installation dimensions of HERZ District Heating Valves, which have been adapted to the market, enable easy installation even in existing systems.

HERZ Combi Valve - Pressure Independent Control Valve

HERZ Combi Valve - Pressure Independent Control Valve is a fully pressure-relieved automatic control and regulating valve that combines several functions in a single product. By combining the functions of a control valve, regulating valve, differential pressure control valve and isolation valve in a single housing, both space and costs can be reduced.

Easy operation with setting of the desired flow rate as a percentage of the maximum flow rate also saves on commissioning time. External pressure fluctuations are compensated within the differential pressure range, making the combination valve independent of the differential pressure. The valve automatically limits the volume flow in the selected part of the system to the set value by detecting and compensating for all pressure fluctuations.

HERZ 2-port Valves

The pressure-relieved 2-port valve is used primarily to regulate the volume flow in district heating and HVAC systems. It can also be used to open and close circuits.

HERZ Differential Pressure Control Valves

HERZ Differential Pressure Control Valves regulate the difference in pressure between the supply and return flow of a system by adjusting the flow of the heating or cooling medium in a system at the correct pressure. The desired differential pressure setpoint can be set between 50 kPa and 150 kPa. By using differential pressure control valves and ensuring hydraulic balancing, energy consumption in heating and cooling systems can be significantly reduced.

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