
Christian Maier GmbH & Co. KG
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Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
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B
B-4
–
Rotating inner pipe supported in the elbow
(PR 2): The inner pipe runs inside the stationary el-
bow. The points of support are subject to wear.
B-5
Stationary inner pipe with floating bearing and
anti-rotation device by means of screw (PO 2):
The inner pipe is floating within an O-ring in the
elbow and secured with a screw from rotating.
The points of support are not subject to wear.
The same applies to series 800 except for the fact that the two-way flow design is equipped with an
additional Viton O-ring which provides sealing between elbow and housing.