Overflow valve 3 bar 1/2 x 1/2

OVERFLOW VALVE FROM BONFIX:

 FOR A SAFE CENTRAL HEATING INSTALLATION An overflow valve is part of the central heating system and activates when the pressure in the system exceeds approximately three bar. The overflow valve is also sometimes called a safety valve. The valve is therefore intended as protection against overpressure in central heating and drinking water systems. This overflow valve has been tested by TNO and has been found safe.

HOW DOES AN OVERFLOW VALVE WORK?

An overflow valve has a valve that is held closed by a spring. When the pressure exceeds a certain value, the spring is compressed and the valve opens. This system is also known as a spring-loaded valve. An overflow valve has a fixed value or is adjustable to a certain pressure. For most central heating installations, this is 3 bar.

WHERE IS THE OVERFLOW VALVE LOCATED?

In newer central heating boilers, the overflow valve is often located in the boiler itself. If this is not the case, the valve is placed as close to the boiler as possible. In standalone boilers, the valve is always located in the supply pipe. In combi boilers, the placement of the three-way valve also plays a role in whether the valve should be placed in the supply or return pipe. In older installations, you may very occasionally find the valve on a radiator in the bathroom. The reason for this is that any water from the valve can be collected in the shower drain.