BVTS Thermostatic Valve

The BVTS thermostatic valve is used in heating installations as a safety device for fireplaces and solid fuel boilers. The valve prevents the boiler from overheating by discharging water from the heater or condensing coil. BVTS also protects against backflow of flames into the solid fuel feeder by flooding the fuel in case of excessive temperature rise. BVTS is an automatic valve, meaning it operates without the need for electric power or compressed air.

Do not expose directly to fire. Failure to follow this recommendation may result in valve damage and void the warranty.

Operation Description

The BVTS thermostatic valve is activated by a temperature increase. The valve consists of two permanently integrated elements:

• a spring-loaded valve
• a hermetically sealed thermostatic element with a bellows, sensor, and filling

The valve is adjusted to open at a sensor temperature of 95ºC. The valve setting is fixed and cannot be changed by the user. When the temperature around the sensor rises, the sensor's filling also heats up, causing an increase in pressure. This pressure is transmitted through a capillary tube to the bellows, which acts on the valve. At a sensor temperature of 95ºC, the pressure in the bellows becomes greater than the spring force, causing the valve stem to rise and the valve to open.

Advantages

• No power supply required – automatic valve
• Opens with an increase in sensor temperature
• Can be installed on the inlet or outlet of the boiler
• Can be installed in any position
• Brass and other materials in contact with water are suitable for contact with drinking water
• Thermostatic element permanently integrated with the valve body to eliminate the risk of setting displacement
• Double sensor for reliable operation
• Capillary protected from bending by a steel sheath
• Space-saving compact solution

Do not expose the valve directly to fire. Failure to follow this recommendation may result in valve damage and void the warranty.

Technical Data