Heating circuit distributor with pump group & Three-way mixer

Product overview Heating circuit manifolds

The high-quality Sunex heating circuit manifold combines a robust steel construction with corrosion-resistant brass nuts and 30 mm thick EPP insulation. It is available in versions for 2 or 3 heating circuits in DN20 and DN25 and offers flexible connection options with male or female threads.

Thanks to its compact design and clear marking of the boiler and heating circuit sides, installation is simple and error-free – ideal for new buildings and modernizations alike.

Application areas

Whether underfloor heating, radiators, or a hybrid system: the heating circuit manifold optimizes heat distribution in residential buildings, commercial properties, offices, or workshops. Especially in systems with varying flow temperatures, the precise control ensures a high level of comfort.

Construction and materials

The manifold body, made of high-quality steel, provides reliable performance even at high temperatures and pressures. Brass nuts ensure a durable and corrosion-resistant connection. The EPP insulation minimizes heat loss and increases the efficiency of your system.

The M8 fixings allow for secure wall mounting without additional brackets, while all connections remain easily accessible.

Product overview Pump group

The GPO-Sunex pump group DN 25 combines a Wilo Yonos Para 25/6 high-efficiency pump with a three-way mixing valve. It ensures precise temperature control and efficient circulation of heating and cooling media in a wide variety of systems.

Three-way mixing valve

The innovative three-way mixing valve precisely controls heating and cooling flows as needed, guaranteeing an even temperature distribution. The powerful servo motor delivers a valve opening time of 124 seconds and a torque of 8 Nm.

High-quality EPDM insulation and durable components ensure reliable operation for many years.

Wilo Yonos Para high-efficiency pump

The Wilo Yonos Para 25/6 is characterized by low energy consumption, quiet operation, and intelligent automatic functions. It operates with a maximum power consumption of 0.44 A and an energy efficiency rating of 0.20.

Maximum water pressure: 6 bar, maximum water temperature: 90 °C, flow rate: up to 3 m³/h.

Installation and applications

Thanks to its compact design and pre-assembled ball valves, integration into existing heating, cooling, or process heat systems is effortless. Thermometers in the flow and return lines provide precise temperature readings at all times, while the check valve on the flow line prevents unwanted backflow.

Ideal for new construction and modernization – in private, commercial and industrial facilities.

Technical data

Technical data heating circuit manifold

Version: DN25, 2 circuits
Dimensions (H x D x W): 193 × 137 × 552 mm
Weight: 6.05 kg
Maximum operating temperature: 110 °C
Maximum operating pressure: 6 bar
Maximum power: 54 kW
Max. flow rate: 2.3 m³/h
Connection boiler side: 5/4" AG
Connection on heating circuit side: 6/4" IG

Version: DN25, 3 circuits
Dimensions (H x D x W): 193 × 140 × 862 mm
Weight: 8.49 kg
Performance and pressure values ​​are the same as for a dual-circuit system.

Technical data pump group

Pump: Wilo Yonos Para 25/6 SC
Power: 3–43 W
Axle spacing: 125 mm
Valve capacity: 12 m³/h
Connections on top: 2 × 1" IG
Connections at the bottom: 2 × 1½" male thread
Height/Width/Depth: 390 × 275 × 140 mm

Three-way mixing valve
Servo motor: 8 Nm, valve opening time: 124 s
Insulation: EPDM
Blue ball valve with thermometer (return), red ball valve with integrated check valve (supply)

Scope of delivery

• Heating circuit distributor DN25 of your choice
• 2 x GEMA pump group with three-way mixer