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4.5 System piping
The diameters of the system piping must be chosen in order to obtain an average gas speed from 15 a 30
m/s and must never be smaller than the diameters of the blower openings, if the diameters are different, use
a taper connector.
The system piping should be properly aligned and supported to prevent stress on the blower openings.
Provide flexible joints and support the pipes near the nozzles.
Isolate the pipes to avoid heating the environment as well as a precaution to accidental contact
The pipes must be thoroughly cleaned before connection, in case of vacuum operation install a dirt filter for
the first 100 working hours and provide a vacuometer to check the dirt filter.
The gaskets must not interfere with the gas system.
Warning : Remove the protective covers from the blower openings just before connection.
The recommended accessories are the following
4.5.1 Pressure operation
Pos.
Description
F Filter
SPF Inlet silencer
SM Outlet silencer
RVP
Relief valve
WR Check valve
VRA
Starting valve
4.5.2 Vacuum operation
Pos.
Description
WR Check valve
RVV
Safety valve
SPF Inlet silencer
SM Outlet silencer
4.5.3 Vacuum/Pressure operation
Pos.
Description
WR Check valve
RVV
Relief valve
SPF Inlet silencer
SM Outlet silencer
RVP
Safety valve
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