EKOM 447000001-066, User Manual

Page: 62 / 72

PRODUCT MAINTENANCE
NP-DK50-9x4VRTM-AD-EN-5_04-2022 62 04/2022
18.22. Pressure relief valve
The pressure relief valve automatically begins
to vent air from the system if the pressure in
the compressed air circuit exceeds its pre-set
value. The pressure relief valve closes as the
pressure drops.
The pressure in the
compressed air circuit can only
increase
because of an
increase in flow resistance in
the compressed air lines or as
a result of a dryer malfunction
(e.g.
solenoid valve
malfunction), and therefore the
repeated opening of the relief
valve requires a dryer function
check and repairs if necessary!
Consultation with the
manufacturer is required
before any adjustment is made
to the relief valve!
The outlet openings on the
relief valve may not be blocked
and the egress of compressed
air through them may not be
restricted
1 Compressor pressure relief valve
2 Dryer pressure relief valve
Fig. 42: Pressure relief valve