Calibrated and certified safety relief valve with controlled rise for fluids and neutral gases.
The RBM Series 605 series certified safety valves are mainly used to control the pressure of heat generators.
In hot water production systems with a temperature of less than 100°C and with potential of more than 35 Kw transferred to the water, the functional characteristics of the certified safety relief valve fulfil the requirements of MD 1.12.75, of the attached “Collection R” technical specification and of directive PED 2014/68/EU.
When there is an over-pressure of no more than 10% the value of the calibration pressure, the valve opens a discharge orifice (the force generated by the pressure overcomes the resistance exerted by the valve spring), allowing part of the fluid to be discharged and thereby lower the pressure inside the system.
This orifice is closed by a spring when the pressure value drops to a value within a maximum of 20% Pt.
Triggering of the safety valve is guaranteed even if the diaphragm breaks.
Turning the hand wheel anticlockwise opens and closes the discharge orifice.
(Compliant with Directive PED 2014/68/EU, with INAIL formerly ISPESL bench calibration report)
Brass body.
Galvanised steel spring.
Elastomer obturator seal.
Elastomer diaphragm.
Threaded angle connections FF UNI-EN-ISO 228.
Pressure setting certification at INAIL ex I.S.P.E.S.L. base.
Max operating temperature 110 °C
Opening overpressure +10 %
Closing discard pressure -20 %
Max admissible pressure PS 12 bar
Allowed fluid water-air (Gr.2)
kw: the Thermal power table provides the technician with a quick reference to match the chosen component to a certain heating system size. The values provided are not binding and do not therefore represent performing limits of the components (for gas, the values refer to 0°C and 1013.25 mbar).
