Christian Maier GmbH & Co. KG
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Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
2/31
B
2.4
Function
Maier rotary joints are devices which allow you to connect stationary pressurized pipes to
rotating pressurized systems. Typical examples of such rotating pressurized systems are roll-
ers which are heated or cooled by means of liquids, gas or steam flowing through them.
The connection to the stationary pressure system (housing connection) is made by means of
the stationary part of the rotary joint – the housing. There are following design variations:
B-2
One-way flow design (single-passage) (DP): housing
with one connection for supplying or discharging the
medium to or from the rotating pressure system
Small DP rotary joints are always delivered in one- way
flow design. Two-way flow designs require elbows.
Two-way flow design (dual passage):
Rotary joint DP with elbow for supplying and discharging the medium to and from the
rotating pressure system. The second flow channel is created by an inner pipe that is
centered on the central axis of the rotating part. There are following design variations:
B-3
–
Stationary inner pipe (P 2): The inner pipe is
screwed into the elbow (standard version always
with right-hand thread).
