040-563
2018-10
Operating Manual
Model/Series:
Number:
GB
Version:
Rev. D
Page 5 of 16
©
DEUBLIN
for air and hydraulic
with elastomeric seals
❑
Connection to a piping system with excessive pressure
If excessive pressure is applied to the rotating unions, supply pipes can come off and cause
personal injury or property damage.
❑
Connection to fixed pipes
If connection is via fixed pipes, the rotating unions may leak and the ball bearings may get
damaged.
❑
Conveying of media which are too hot
If the media exceed the maximum admissible temperature for the rotating union, the seals can
be damaged which may result in leaky rotating unions and personal injury or property damage.
❑
Application in ambient temperatures/with media temperatures below 3 °C
Rotating unions may be damaged if they are operated at temperatures (ambient or media) be-
low 3
°C.
❑
Operation without a medium (dry run)
If the rotating unions are operated without a medium, the sealing surface of the rotating unions
might fail prematurely.
❑
Operation at maximum speed and with maximum pressure
Speed and pressure must be adjusted to each another so that the rotating unions are not dam-
aged or fail prematurely (see model-specific installation drawing).
This list is not comprehensive and will be updated with results from product observation.
1.3
Safety Instructions
This chapter provides information on the hazards when using rotating unions.
1.3.1 Hazards due to hot surfaces
Frictional heat and the temperature of the medium causes rotating unions to rise in temperature. Skin
contact with heated rotating unions can cause injuries.
❑
Use safety gloves and PPE (Personal Protective Equipment) protecting against heat when han-
dling the rotating union.
❑
Attach a clearly visible danger sign visibly on/next to the rotating union in order to warn of
danger.
1.3.2 Hazards due to incorrect hoses
For the connection of the rotating union to the machine, you have to choose appropriate hoses for the
respective medium, which meet, the specifications for the application.
If you use incorrect hoses, they may become porous or burst. This can cause personal injury and/or
property damage to components of the machine.
❑
Use only hoses which are suitable for the media, the maximum system pressure and the maxi-
mum temperature for the machine.
1.3.3 Hazards due to the media
When working on the rotating union, injuries can be caused by skin or eye contact with the media.
❑
Observe the safety instructions for the flow media. Observe the COSHH Safety Data Sheet for
the flow media.