Two-way thermostatic valves are used for proportional control of the cooling medium flow based on the temperature set on the sensor. The valves are self-operating, meaning they work without the use of electricity or compressed air. They are used in cooling systems (both closed and waste) and are suitable for water, air, oil, and inert gases. A key feature is the slow valve closing with low pressure surge levels. The valves are actively resistant to dirt due to a force-compensated design, which prevents particle ingress into the valve and dirt accumulation on its opening. However, if dirt does settle in the valve, the sensor simply detects the need for increased flow, and the valve opens more to allow increased water flow, which clears the dirt. For all valves, we guarantee operational economy and efficiency with long service life.