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Deublin Hot-Media Rotating Unions with SAE-flange

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Norman G. Clark Announces:

Deublin Hot-Media Rotating Unions with SAE-flange

The
requirements that the new Hot-Media Rotating Unions with SAE-flange have to
meet are shorter assembly time, secure sealing and increase of service life in
the field. These rotating unions are especially designed for the use in
calendars, in paper and plastic machines as well as in machines for laminating
and coating.

The
practice shows that models were very often mounted onto the supply line by
means of adaptors or screw joints. These connections are complex and
time-consuming to mount and very often need a lot of force or power to be
installed or serviced. Even when done by experienced and qualified servicemen,
they are still error prone; ensuing damages or warranty cases may result due to
damaged bearings or seal rings (i.e. reduction of service life).

Moreover,
experience shows that any sort of adaption leads to flow diameter restriction
which, in turn, results in a lower heating capacity and higher pressure losses.

When
using SAE flanges these problems now belong to the past. Connections are
simple. Four screws, one O-ring and a retaining plate are needed to connect the
supply lines to the rotating union – and the only assembly tool you need is an
Allen wrench.

This
design has several advantages:

The supply lines can be connected tension-free in the shortest amount of time,
reducing considerably both installation and service time. No large tools are
needed for the disassembly. All this leads to less machine downtime, resulting
undoubtedly in cost advantages for the user.

There
are further advantages: no more side-loaded installation; the service life and
energy efficiency of the rotating union increases due to the continuous volume
flow to the cylinder and calendar; no more losses in pressure and heat
capacity.

Furthermore the design with SAE-flange offers the possibility to realise a
secure sealing and proper connection pursuant to the standards of DIN 4754
“Heat transfer plants with organic heat carriers; safety-related requirements,
inspection”. This was not always the case when using an adapter.

Of
course, the user must not relinquish other well-known technical features. Thus
the standard DEUBLIN Rotating Union is available for temperatures up to 120°C, in nominal diameters
of DN 40 up to DN 100 and in monoflow and duoflow designs. In case higher
temperatures are needed, the user should not hesitate to contact Norman G.
Clark. All rotating unions have a stable bearing design and a secondary sealing
with diaphragm, which helps avoid relative movements at the sealing gasket. The
springs are located outside the media flow in order to allow high flows with
low pressure loss.

In
order to achieve maximal service life, the user is strongly recommended to only
use DEUBLIN original parts and to have his
rotating unions repaired by DEUBLIN,
NORMAN G. CLARK
, or
to refer to the machine manufacturer.


For more information
contact Norman G. Clark on (03) 9450
8200
or visit our website at www.ngclark.com.au