Niro Soavi S.p.A
3.7. SAFETY DEVICES
NIRO-SOAVI machines are provided with safety devices to prevent reaching
critical conditions which may cause sudden breakage of the machine and
hazards for the personnel.
In addition the machines are designed with ample safety margins, in
consideration of high pressures which may be reached as a result of improper
operations by the user or failures of the line in which the machine has been
included.
The following safety devices have been incorporated: overpressure valve on the
compression head, electric protections on the main motor (if the machine
includes a control board), an emergency push-button and a guard to protect the
head, as described here below.
3.7.1 OVERPRESSURE VALVE
The pressure relief valve has been designed by NIRO-SOAVI to protect the
machine from the possibility of overpressure which might be producted inside
the compression head as a consequence of the pumping action of the machine.
CAUTION: The safety valve is used to protect the machine; piping
downstream the machine can be protected only if a valve is fitted on the
line.
ATTENTION: the valve protects only the pressurized chamber on which it
is installed.
It features the following advantages:
• reduced maintenance
• designed to "3-A" Standards, suitable for C.I.P.
• it closes automatically in case the overpressure is released to allow the
immediate resuming of production
• accurate calibration and repeatable actuation.
3C001E0C.DOC 3.7.1