4-way mixing valve Controlmix DN25 6094120

Mixing valve – optimizing thermal comfort and protecting the boiler

The 4-way Controlmix DN25 mixing valve is a key component of central heating systems with solid fuel boilers. Its function is to raise the temperature of the water returning to the boiler, which prevents condensation and corrosion, thereby extending its service life. This solution is proven both in domestic installations and in more demanding heating systems.

This valve, made of high-quality brass (CW617N), is designed to mix the heating medium, ensuring optimal temperature in the heating and domestic hot water circuits. Its versatility allows it to be used in various installation configurations, and the ability to manually control it with a knob with a scale makes it easy to precisely set the operating parameters.

Construction and benefits of use

The construction of the Controlmix 4 valve is based on proven solutions that guarantee reliability and long-term operation. It is equipped with unique PTFE sliding inserts, which minimize the torque and limit the scaling process of the valve stem. This translates into smooth adjustment and trouble-free operation for a long time. In addition, the valve has O-ring seals with improved physicochemical properties and a solid construction made of glass fiber reinforced polyamide PA6 GF30.

• Boiler protection: Prevents condensation and corrosion of the solid fuel boiler, extending its service life.
• Precise regulation: Allows accurate setting of the water return temperature to the boiler.
• Low torque: PTFE sliding inserts ensure smooth and light adjustment.
• Durability: Made of high-quality brass (CW617N) and durable composite materials.
• Possibility of automation: Compatible with VALVEX ST 10/230 or STM 10/230 actuators, enabling automatic temperature control.
• Versatility: Designed for installations with various types of solid fuel boilers.

Technical specifications and application

The Controlmix DN25 valve has internal threads with a diameter of 1 inch (25 mm) on both the supply and return sides. Its flow coefficient Kvs is 12 m³/h, which ensures adequate performance in typical heating installations. It can operate in a temperature range from -10°C to +110°C and at a nominal pressure of 1.0 MPa.

This valve is used primarily in:

• Central heating installations with solid fuel boilers (coal, wood, pellets).
• Underfloor heating systems.
• Domestic hot water installations (in combination with other system components).
• Modernization of existing heating installations to improve their efficiency and safety.