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MC • Edition 05.20 • Nº 279 663
14. Maintenance
14.1 General information
•
The Pressure Equipment Directive
(PED) requires the devices to be
checked at regular intervals to ensure
the following in the long term: Safety
and functioning of the device, high
long-term utilisation ratios, resulting
in minimum environmental impact.
• The maintenance of the device can only be carried
out in compliance with the applicable rules and
standards and in accordance with current local
regulations.
• Repair work on the device must only be per-
formed by authorised and skilled personnel.
• Adhere to the maintenance intervals indicated.
• The risks in case of an escape of flammable or
noxious gases into the atmosphere have to be
assessed.
• Always install new seals after replacement or
modification of parts.
• Use only original spare parts.
• Do not use alcohol-based or solvent-containing
cleaning solutions for cleaning the device.
Prior to maintenance
•
Shut-off valves both on the inlet and outlet side are
closed.
•
Line is depressurised and free from combustible gas.
•
Prevent explosive gas-air mixture: the room atmosphere
must constantly be monitored using appropriate gas
concentration measuring devices for the detection of
gas leakages.
•
SAV is in the closed position.
•
Original spare parts are available.
Pos.
Designation
A
Protective cap
B
Adjusting screw + washers
C
Sealing plug
D
Spring disc with ball
E
Adjusting spring
F
Membrane cover
G
Hexagonal nuts + washers
H
O-ring
I
Lever system
J
Safety nut
K
Spring disc
L
Safety spring
M
Working diaphragm
N
Guide bar
O
Bottom membrane enclosure
P
Lower diaphragm disc
Q
Sealing ring
R
Washers
S
Seal
T
Mounting screws
U
Mounting plates
V
Seat of the seal
W
O-ring
X
Body of the regulator
Y
Hexagon nuts +
washers
Z1
Upper washer
Z2
Lower washer
Содержание 279042
Страница 14: ...14 72 MC Edition 05 20 Nº 279 663 A B C D E A B C D E F Type UHD F Type HD ...
Страница 15: ...MC Edition 05 20 Nº 279 663 15 72 A B C D F E A B C D E F ND MD for G2 DN40 DN50 ND for G1 G1 5 y DN25 ...
Страница 43: ...MC Edition 05 20 Nº 279 663 43 72 Type UHD X Y Q S W V M C A B D E G F J K L N P H O R U I ...
Страница 45: ...MC Edition 05 20 Nº 279 663 45 72 Type ND MD for 2 DN40 DN50 M B D E G F J K L N H X Y Q S W V O I T ...
Страница 64: ...64 72 MC Edition 05 20 Nº 279 663 14 4 Tools required A B C2 D C1 ...