This safety device is also referred to as a Pressure Release Valve, Prv or Safety Valve and is a mechanical device that operates at a pre-set pressures. The most common pressure setting for these devices are 3 bar and once this pressure is reached the safety valve opens. Chaffoteaux will not allow their boilers to work above certain pressures as they view this as dangerous so they ensure the boiler can't operate above these levels by having the pressure relief valve fitted within the boiler. The pressure relief valve is connected to a discharge pipe that takes pressure away from the boiler in the form of hot water and releases it to a drain.
Chaffoteaux 61312668 Pressure Relief Valve

Part: 61312668

Price: £27.02
Chaffoteaux 569292 Safety Valve

Part: 569292

Price: £10.00
Chaffoteaux 573172 Pressure Relief Valve

Part: 573172

Price: £12.95
Chaffoteaux 571730 Safety Valve

Part: 571730

Price: £8.67
Chaffoteaux 998447 Safety Valve

Part: 998447

Price: £10.00
Chaffoteaux 65103222 Safety Valve

Part: 65103222

Price: £11.96