6500 Series Purge and Pressurization System
I/O Manual
29
EPV-6500-__--5: Gives the best seal for pressurization but highest back pressure for purging.
Continuous vent pressure/flow curves
The enclosure pressure vs. flow rate curves represent the EPV-6500-__-01, 03, 05, vents. This
corresponds to the enclosure pressure and is independent of the valve used, provided it can deliver the
flow rate required.
These curves represent a completely sealed enclosure which may not be representative of the customer's
enclosure. The flow in these curves are measured at the vent which represents the exhaust of the
system. More flow may be required to reach the enclosure pressure due to leakages from gaskets, seals,
windows,etc.
EPV-6500-__-07: The vent has a 8 mm diameter opening and requires a continuous flow to
maintain pressure/flow.
8 mm orifice
0.0
5.0
10.0
15.0
20.0
0 100 200 300 400 500 600
mbar
Enclosure press. vs flow
EPV-6500-__-05
l/min
0
10
20
30
40
50
60
70
80
90
0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00
l/min
mbar
Enclosure pressure vs flow rate
EPV-6500-__-07 8mm orifice
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