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april 2011

Boiler safety valves do not always leak because they are faulty

There are other, more important things that can cause a boiler safety valve to drip without blaming the product

Boiler safety valves are devices that protect the heating system by discharging the water, therefore the excess pressure, when it exceeds 3 bar.
At times, though, boiler safety valves can drip insistently, but almost never because of production faults. There are many other possibilities, and we can mention the following from among the main ones.
The system has released flakes of limestone that can, during device operation, position themselves under the gasket and therefore prevent a perfect close; this can only be solved by cleaning the system well.
Another reason for a leaky boiler safety valve is generally tied to excessive cold pressure in the system, the result of an incorrect load manoeuvre that is usually caused by less expert users; it can be verified from the gauge that every boiler is supplied with.
The last, and probably the most serious, reason is tied to incorrect inflation, or even breakage, of the expansion tank and, in this case, replacing it is the only solution for stopping the boiler safety valve from dripping continually.



See also
04/10/2018 Safety valve for boiler with manually opening Safety valve for boiler with brass unit and specific command for its forced opening

04/09/2015 The installation maintenance and the boiler safety valve Limiting the limy deposits improves the boiler safety valve's life, as well as the one of the system.

04/09/2016 Safety valve for boiler approved in accordance with the PED directive Safety valve for boiler made in brass on numerical control machines at the Lumezzane plants

04/09/2014 System safety with the boiler safety valve Prevent problems and damages to your system by using a boiler safety valve

04/07/2015 The safety valves designed and produced according to PED guidelines Structures protected from overpressures through the use of safety valves, manufactured by GNALI BOCIA

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