Maier DP Series Manuel utilisateur
Operating Instructions for
Maier Rotary Joints
Series DP
Preface
Keep this manual for future reference.
Editor Christian Maier GmbH & Co. KG Maschinenfabrik
Würzburger Str. 67-69
D-89520 Heidenheim
Tel: +49 7321/317-0
Fax: +49 7321/317-139
E-Mail: [email protected]
Website: www.maier-heidenheim.de
Copyright © Christian Maier GmbH & Co. KG Maschinenfabrik
This manual including all parts of this manual is protected
by international copyright laws. Any use or modification of
this manual beyond the limits of the copyright laws is
prohibited and a legal offense without the consent of
Christian Maier GmbH & Co. KG Maschinenfabrik.
This applies, but is not limited to reproduction, translation,
microfilming and storing and processing in electronic
systems.
Section Contents Designation
1 General part of the operating instructions B
2 Specifications and spare parts S
3
For ATEX-certified products
(directive 2014/34/EC):
Additional information for use in hazardous areas (EX
areas)
A
Document identification
Title: Operating Instructions for Maier Rotary Joints
Document designation: B-DP_en
Document type: Translation of the original
Date of issue: 05/2020
Version: 0
List of modifications
Version index Comment Date Editor
0 27.05.2020 cma
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
2/31
B
B
General Part of the Operating Instructions for Maier Rotary Joints DP
Contents
1 General ............................................................................................................................ 3
1.1 Information on this Manual .............................................................................. 3
1.2 Explanation of Symbols ...................................................................................... 3
2 Product Description..................................................................................................... 4
2.1 Intended Use ......................................................................................................... 4
2.2 Reasonably Foreseeable Misuse ..................................................................... 4
2.3 Components .......................................................................................................... 5
2.4 Function .................................................................................................................. 6
3 Safety ............................................................................................................................... 9
3.1 Introduction ........................................................................................................... 9
3.2 General Safety Information ............................................................................... 9
3.3 Structure of the safety Instructions .............................................................. 10
3.3.1 Signal words ............................................................................................ 10
3.3.2 Pictograms ................................................................................................ 11
3.4 Authorized Staff ................................................................................................... 11
3.5 Risk Assessment and Residual Risks ............................................................. 12
4 Transportation and Storage .................................................................................... 13
5 Information on Mounting and Operation .......................................................... 13
6 Mounting ...................................................................................................................... 15
6.1 Mounting the rotary joint to the roller DN 10 to 50 ............................... 15
6.2 Mounting the rotary joint to the roller DN 65 to 100 ............................. 16
6.3 Connecting the Rotary Joint ........................................................................... 21
6.3.1 Anti-rotation device .............................................................................. 21
7 General information on connection lines .......................................................... 22
8 Operation .................................................................................................................... 25
8.1 Commissioning .................................................................................................. 25
8.2 During Operation .............................................................................................. 25
8.3 Troubleshooting ................................................................................................ 26
9 Maintenance ................................................................................................................27
9.1 Maintenance Plan ..............................................................................................27
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
2/31
B
10 Repair .............................................................................................................................27
10.1 Tools .......................................................................................................................27
10.1.1 Repair Work ......................................................................................... 28
10.1.2 Dismounting the Rotary Joint from the Roller .......................... 28
10.1.3 Dismantling the Rotary Joint .......................................................... 28
10.1.4 DP size DN 10 to 50 ........................................................................... 29
10.1.5 ...................................................................................................................... 30
10.1.6 DP size DN 65 to 100 ........................................................................ 30
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
2/31
B
1 General
1.1 Information on this Manual
This manual is intended for use by the operators, the maintenance and the inspection staff.
It is divided into the following sections
Section 1 "General Part of the Operating Instructions":
(pages with the designation B)
This section provides general information on the manual, on safety and on handling the
product
Section 2 "Specifications and Spare Parts":
(pages with the designation S)
This section provides product-specific data
Section 3 "Additional Information for Use in Hazardous Areas (EX areas)":
(pages with the designation A)
(only available for products certified as per directive2014/34/EC)
The operators must read and fully understand this manual and observe all instructions it
contains. Exclusion of liability: We shall not be responsible in any way for damages and op-
erational disruptions or any type of consequences whatsoever resulting from the failure to
read and/or observe the instructions contained in this manual.
Read chapter 3 and the specific safety instructions in the individual chapters with particular
care.
We reserve the right to technical modifications which such modifications are required to im-
prove the rotary joint or its accessories, i.e. details and descriptions may differ from the in-
formation given in this manual.
1.2 Explanation of Symbols
Symbol Used for Explanation
● List List of facts or instructions. No specific sequence
required.
1. Instructions consisting
of several individual
steps
Instructions consisting of several steps which must
be followed exactly in the sequence listed. Failure
to observe the instructions in the correct se-
quence may result in damages or accidents.
[1] Item number Item number of the component mentioned in the
corresponding illustration.
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
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B
2 Product Description
2.1 Intended Use
Maier rotary joints are only permitted to be used as fittings to connect 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 or steam flowing through them. Series
DP rotary joints are designed preferably for application with water. Series DP … 800 is avail-
able for application with thermal oil. Other mediums may be possible; please contact the
manufacturer. Please refer to the section "Specifications and Spare Parts" for approved me-
diums as well as their qualities and limits; this information must be observed in the applica-
tion.
Never modify the rotary joint as this can cause hazards. Install, operate and maintain the ro-
tary joint only as described in these operating instructions. We shall not be liable for any
damages and operational disruptions whatsoever resulting from failure to adhere to the op-
erating instructions.
Always comply with all national and local regulations applicable at the place of installation
concerning operational safety and the prevention of accidents.
For repairs, use only genuine Maier spare parts or standardized components explicitly ap-
proved by Maier. Using any other components can have adverse effects on the safety of the
unit.
2.2 Reasonably Foreseeable Misuse
In case of reasonably foreseeable misuse of the product, the manufacturer's warranty will be
void and the operator will be fully responsible for the consequences.
Reasonably foreseeable misuse includes:
failure to observe the application data
failure to observe the medium specifications
failure to observe the maintenance intervals
failure to replace wearing parts
failure to perform maintenance work
faulty maintenance work
additional components mounted and conversions carried out without written approval
use of non-genuine spare parts
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
Operating manual Series DP_en – Part-B-Version 10 – 19.03.2020
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B
2.3 Components
B-1
SK Hexagon screw
(two-way flow design)
FD2 Flat packing 2
(two-way flow design)
OR3 O-ring 3 (two-way flow design)
F Spring
GL Mechanical seal
2 x OR1 O-ring 1
GR Counter ring
SR1 Circlip 1
W Roller bearing
SR2 Circlip 2
FD1 Flat packing 1
WS Elbow
(two-way flow design).
C, B
Housing connections for the
medium (the one-way flow design
(single passage) has only one
housing connection)
IR Inner pipe (two-way flow design)
G Housing (stationary)
OR2 O-ring 2
S Lubricant inlet
L Rotor (rotating)
Christian Maier GmbH & Co. KG
© 2020 by Christian Maier GmbH & Co. KG Maschinenfabrik | This document may not be copied or disclosed to third parties.
All rights, including copyright and property rights, reserved by Christian Maier GmbH & Co. KG.
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).
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