Series 541 (98°C) fuel shut-off valves are made by Caleffi S.p.A. in compliance with the essential safety requirements of Directive 97/23/CE of the European Parliament and the Council of the
European Union for the harmonisation of the member states with regard to pressurised equipment.

The Caleffi series 541 fuel shut-off valve is a fail-safe safety device with pre-set calibration. This valve, installed in the burner fuel supply pipework, shuts off the flow of fuel when the temperature of the heat-carrying fluid reaches the calibrated value of the sensor. As this is a fail-safe device in the case of damage to the sensor assembly, the fuel supply pipe is automatically closed. This valve can be used
with different types of fuel and is also available in versions for superheated water.