Installation
03|2022 EN 41
Fig. 5
a) Spring-loaded Speck special non-return valve (order no.
2409102063
b) Channel line
5.2.1 Connecting the valve to the pipework
Î The backwash valve housing must be installed free of load in
the pipework.
Î The control is to be installed in the pipework using separable
connectors, for example screws.
Î The control is intended for connection to fixed pipework.
Sealing the threaded connections incorrectly can lead to faults in
the housing. Therefore
, as well as sealing with Teflon band,
screws and plugs with axially sealing O-rings are recommended.
Î Connect the pipe free of tension according to the VDMA
standard sheet 24277. Compensators must be installed for
pipe diameters of 90 mm or larger. They are recommended
for diameters of 75 mm.
Î Ensure that any leaks cannot cause consequential damage.
Install a suitable retainer if necessary.
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