36000 Kraljevo, Živojina Lazića
- Solunca br.6, Srbija
tel. +381 36 399 140, fax. +381 36 399 150, http://www.radijator.rs
e-mail: [email protected]
65
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.
Figure 6.
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 (Figure 6) 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.
Ispusni tj. izduvni deo ventila sigurnosti mora da bude od cevi čiji je prečnik najmanje
jednak nazivnom prečniku ispusnog dela ventila.Takođe dozvoljeno je za njegovu
izradu koristiti najviše jedan luk radijusa r >
3d.
The safety valve must have a nameplate and the following information on it
o
Name of manufacture;
o
Designation of type of safety valve / year of testing;
o
Nominal flow rate;
o
Data for which thermal effect the safety valve is set;
o
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 accordance
with the law of every country in which the boiler is assembled. Always keep the written
documentation of the last calibration data for the safety valve.
On the return line assemble at least another pressure safety valve.
