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7500 Series Manual
4.4 Automatic Manifolds
Pepperl+Fuchs 5500 series automatic manifolds can be used with the 7500 system because the area
classification is the same for both systems. The 7500 system is certified with the control unit and the EPV-
7500 vents and does not include the manifolds. The 5500 manifolds have their own certification from the
manufacturers.
Note!
Different manifolds are available for different certification requirements.
5500-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 and is adjustable with the included hex key (for CDUL valve) or slot-head screwdriver (EX01 and
CD01 valves). 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.
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. The 5500 valve system
works with the 5500 and 7500 control unit as well as EPV-5500 and EPV-7500 vents. The 7500 control
system is certified by UL for Class/Division installation.
Users can also use their own pneumatic system or the 7500-MAN-MV-01 manual manifold. These valves
are not part of the evaluation of the certification of the 7500 control unit and EPV-7500... vent.
1 Solenoid coil for purging
2 1/8 inch hex key adjustment for pressurization (included)
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