Automatic Manifolds - Pepperl+Fuchs 7500 User Manual

2.6. automatic Manifolds

Pepperl+Fuchs 5500 or 7500 series automatic manifolds can be used with the 7500
system. The 7500 system is certified with the control unit and the EPV-7500 vents
and does not include the manifolds. The 5500 and 7500 manifolds have their own
certifications.
Note
Different manifolds are available for different certification requirements. The voltage when
selecting a manifold must be specified.
5500-MAN* and 7500-MAN* manifold valves include a solenoid valve for purging
and a needle valve for pressurization in one manifold design. When the valve is
energized, the solenoid valve is open and allows a high flow rate of protective gas into
the enclosure. The amount of flow is controlled by the regulated pressure supply of
the protective gas to the manifold. When the valve is de-energized, the flow is through
the internal needle valve. The needle valve is adjustable on the 5500-MAN* with the
included hex key (for CDUL version of the valve) or slot-head screwdriver (EX01 and
CD01 versions of the valves). The needle valve on the 7500-MAN* is adjusted with a
slot-head screwdriver.
The solenoid valve is used for purging and leakage compensation, with signals from
the 7500 control unit that will have these set points set up by the user.
For the 5500-MAN*, the mounting hardware includes 3/8 inch tube compression
fittings mounted on the manifold for input and output flow, 3/8 inch tube compression
bulkhead fitting for getting flow into the enclosure, and sealing washers that are
certified by UL with bolts to mount the manifold to the enclosure. Also included is
1 meter of 3/8 inch poly tubing with 3/8 inch poly tube stiffener inserts that allow
users to connect plastic tubing to compression fittings without collapsing the tubing.
Stainless steel tubing can be used with existing fittings. For NEC, ATEX, and IECEx
applications, see the type code for the correct model.
For the 7500-MAN*, mounting hardware includes two options (3 mm and 4.5 mm)
for jet attachments that can be threaded into the manifold for output flow. The 7500-
MAN* carries ATEX/IECEx and CCC certifications.
The 5500 or 7500 manifolds can be used with either the 5500 or the 7500 control unit.
If the user implements a 5500-MAN with the 7500 control unit, they must pay
special attention to the fuse size requirements of that solenoid and include an in-line
fuse appropriately rated for the hazardous area. Refer to manufacturer's Specific
Conditions of Use in certificate IECEx PTB 04.0002X. Users can also use their own
pneumatic system, or the 7500-MAN-MV-01 manual manifold.
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