10.2 Pressure equipment directives
Components are subject to the 97/23/EC Pressure Equipment Directive.
The drying towers, consisting of extruded profiles, are the only pressure bearing parts of category I. The
category according to 97/23/EC of the pressure assembly, as well as the volume, is indicated in Table A (see
below).
Parts of article 3.3 of 97/23/EC are subject to Sound Engineering Practice (SEP).
Parts of category I according to 97/23/EC are integrated into the machine and fall under the exclusion of article
I, section 3.6.
Parts subject to the Simple Pressure Vessel Directive 87/404/EEC are excluded from 97/23/EC according to
article I, section 3.3.
The following table contains the necessary information for the inspection of all pressure equipment according
to the Pressure Equipment Directive 97/23/EC.
Table A
Dryer
type
Tube drawing
p.n.
Design
pressure
bar(e)
Design
tem-
perature
°C
PED
category
Tube wall
thickness
mm
Tube
diameter
mm
Tube
internal
volume
l
CD 7+
1627 0009 00
16
-10 to +80
I
6
150
8.3
CD 13+
1627 0010 00
16
-10 to +80
I
6
150
11.7
CD 25+
1624 0938 00
16
-10 to +80
I
6
150
15.7
CD 35+,
CD 70+
1624 0939 00
16
-10 to +80
I
6
150
20.0
CD 50+,
CD 80+,
CD 100+,
CD 145+
1624 0974 00
16
-10 to +80
I
6
150
26.5
Recommendation of the manufacturer for the re-inspection time
Following actions are to be executed by authorised service personnel, unless stated differently in the applicable
legislation. The stated time interval has as reference the day of start-up of the unit.
• Every 6 months: visual check of tube (tower) material on the outside (exposed) for traces of strong
corrosion. Consult the service department of your supplier if necessary.
• Every 5 years: when replacing the desiccant, following inspections are to be carried out:
• Inspection of outside and inside of the material for excessive and local corrosion,
• Inspection of outside and inside of the material for fissures, leaks, damage.
Consult the service department of your supplier if necessary.
• Every 10 years: hydrostatic test according to the Pressure Equipment Directive 97/23/EC. Consult the
service department of your supplier if necessary.
Instruction book
88
2920 7099 70
Summary of Contents for dMED 100
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