040-563
2018-10
Operating Manual
Model/Series:
Number:
GB
Version:
Rev. D
Page 9 of 16
©
DEUBLIN
for air and hydraulic
with elastomeric seals
4.3
Definition of Hydraulic Fluids
The hydraulic fluid that is used must correspond to the following definition: Mineral oils according to
DIN 51524 (HL; HLP)/ ISO 6743/4 (HL, HM, HV) in viscosity classes 10, 22, 32, 46, 68 and 100 mm²/s).
4.4
Optional 1379/1479: use of support sleeves for vacuum applications
For vacuum applications of series 1379/1479, support sleeves are used for the connections to the
flange. These support sleeves prevent the O-rings from being drawn into the channel in the event of a
vacuum which would cause the rotating unions to leak.
Support sleeves and installation instructions are supplied together with the rotating unions of series
1379 and 1479.
Component damage due to incorrect installation
If the support sleeves are inserted into the channel with O-ring already in position, you
risk crimping and damaging the O-rings.
❑
Remove the O-rings, insert the support sleeves, and then insert the O-rings.
4.5
Connecting Options of the Rotating Union at the Machine Shaft
Fig. 3: Options for the installation on the machine shaft
The rotating unions are mounted to the machine shaft via the rotor. The following rotor options are
available:
❑
Option (A): The rotor is equipped with a flange.
❑
Option (B): The end of the rotor is threaded.
The rotor provides the connection between rotating union and shaft. Therefore it is important to care-
fully design the shaft in compliance with the specifications in the installation drawing for each specific
rotating union. Deviations might result in leakages and uneven movements of the rotating unions.
Note
B
A
