16
Maintenance
Dirt trap
Dirt traps must be cleaned periodically, initially at short intervals. When opening the dirt trap please pay attention to the point “Preparation
for the mounting”. When putting back into operation watch points “Operation start” of these instructions.
Meter, spare parts
Check connections periodically for tightness and if necessary tighten again. For control and cleaning, the measuring chamber and the ring
piston of the meters DN15...50 can be removed without demounting the meter off the pipe. The cleaning and revision cycle depends
largely on the conditions of operation. Under favourable conditions 5...10 years are sufficient. Check the units for corrosion. When ancillary
equipment is used, observe their mounting and operation instructions. Spare part-lists may be requested from Aquametro Oil & Marine AG.
Torque of measuring chamber screws
Dimensional sketches
Flow sensors ARD
ARD 1000 with threaded ends
DN 15, 20, 25
DN 40, 50
ARD 1000, 2000, 3000 with flanges (to DIN 2501)
DN 15, 20, 25
DN 40, 50
565677
ARD 1000...3000
ARD 4000
Meter
Srews Torque
Srews Torque
DN 15, 20
M 6
6 Nm
-
-
DN 25
M 8
16 Nm
M 8
6 Nm
DN 40
M 12
47 Nm
M 10
6 Nm
DN 50
M 16
100 Nm
-
-
øf
AM066158
AM066157
d
a
r
c
b
p
AM066160
øf
AM
06
61
59
d
a
r
p
c
b
øf
AM066156
øf
1
a
b
c
AM066155
AM066162
Øf
1
AM066161
b
c
a
