7100
040-551
2021-03
E
Operating Manual
Model/Series:
Number:
GB
Version:
Rev.
Page 7 of 14
©
DEUBLIN
4
Information on the Design
This chapter provides information as to which items have to be observed in the design in order to have
a positive effect on the service life of the rotating union.
You can obtain the drawings of the rotating unions from Deublin in order to integrate the
rotating union in your drawing.
4.1 Filtering of the Medium
Unfiltered media with a particle size of more than 60 µm result in increased wear of the rotating union.
The larger the particles in the media, the higher the wear of the rotating union is.
Q
Install a filter upstream of the rotating union which filters the medium according to purity class
17/15/12 ISO 4406:2017.
4.2 Connecting Options of the Rotating Union at the Machine Shaft
Fig. 3: Options for the installation on the machine shaft
The rotating unions can be fastened on the machine shaft by a threaded rotor
(A)
or by means of a
flanged rotor
(B)
depending on the rotating union.
4.3 Fit, Shape and Positional Tolerances
Functioning of the rotating unions is only ensured if you observe the specifications of Deublin regarding
design of fits, shape and positional tolerances. If you do not meet them, O-rings can be damaged, the
medium can escape, for instance. Corresponding information can be found in the technical drawing of
your rotating union.
Q
Make sure that all specifications by Deublin on the installation of the rotating union in your ma-
chine are observed.
4.4 Prepare Installation of the Rotating Union
Sharp edges at the bore hole of the roller can damage the O-rings of the rotating union.
Q
Provide the bore hole of the roller with a chamfer of 30° in order to prevent the O-rings from be-
ing damaged when pressing them in.
Q
Round sharp edges off by polishing the junctions between shafts and rotating unions.
Info
Info
B
A
