Operating Instructions Maier Rotary Joints
Series DP
B-DP_en -Version 4 – 14.02.2011
Keep these instructions for future reference!
5
5 Mounting
5.1 Mounting the rotary joint to the roller
Mount rotary joint 1 to roller W:
as per drawing A with thread at rotor
as per drawing B with K flange 2 and inner ring 3
as per drawing C with fixed flange 4.
Seal with a sealing cone (rotor R/L), O ring 6, flat packing 7
or another suitable sealing element.
Fasten the rotary joint with screw 8 or stud bolt 9 and nut 10.
Clean sealing surfaces DF.
Place the sealing element into roller W (drawing B).
Recommended material for flat packing:
pure graphite with metal insert.
Duo version rotary joint:
version P 2: screw inner pipe J into angle piece
version PR 2: insert inner pipe J into the angle piece, center
the pipe, no tension allowed.
version PO 2: screw inner pipe J with O ring and anti-rotation
unit into angle piece (inner pipe available for type PO2).
Mount K flange 2 with screws over rotor 80 and place inner
ring 3 into rotor groove. Mount stud bolts 9 (drawing B).
Lift the rotary joint and insert it into the centering unit of the
roller.
Versions with inner pipe: the inner pipe must be centered
with reference to the rotary joint and the roller. If you en-
counter resistance, check for correct position. Run-out and
axial tension cause malfunctions of the rotary joint.
Mount screws 8, 11 and nuts 10. Maximum admissible tor-
que as per "Specifications and Spare parts".
Attention:
When sealing with flat packing, do not fully tighten the
screws until you have aligned the rotary joint as per sec-
tion 5.2!
Assure the minimum distance MA is at least 1mm - oth-
erwise leakage will occur at the sealing element and the
rotary joint and the inner pipe will be damaged:
drawing B : MA
≥
1 mm (0.04”)
drawing C : MA1 = 0 mm (0.00”)
MA2
≥
1 mm (0.04”)
Note!
For smooth operation of rotary
joint ensure concentricity and minimum
run-out tolerance of roller
Fig 7. Mounting the rotary joint to the
roller
