Radijator BIOmax Series, Manual

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3.2 Measures and safety devices for boilers BIOmax
For safe operation of boiler it is necessary to assemble and maintain the following elements in
working condition:
-
Pressure Safety valve (Figure 4)
Figure 4 Figure 5
•
Pressure safety valve must be of nominal diameter of 1/2 inch calibrated to a maximum
of 3 bars.
This security element which belongs to the group of pressure limiters must be of such
construction to withstand short-term overdrafts and temperatures and pressure as well as
the content in the liquid glycol for heating.
Usually in the same place the vent (Figure 5) and the pressure gauge are connected so
that these three elements together constitute a security group and can be mounted over T''
connector.
This safety element must be subjected to periodic re-calibration , of which the investor,
i.e. the user of the boiler must have valid documentation.
Safety valve must be mounted on the highest point directly to the boiler and the boiler
without any pipeline or any other elements in between. For this purpose there is a
specially designed connector (see picture). Any reduction in diameter of the connector is
prohibitted.
The vent ie. the exhaust of safety valve must be of pipes with a diameter at least equal to
the nominal diameter of the exhaust part of valve. Also, it is allowed to use maximum
one bend of the radius r › 3d.
The safety valve must have a nameplate and the following information on it
- Name of manufacturer
- Designation of type of safety valve / year of testing
- Nominal flow rate
- Data for which thermal effect the safety valve is set
- The highest opening pressure 3 bars
It is obligatory to check the correct functioning at regular intervals as well as the re-
calibration by certified companies. These responsibilities are carried out in