B Operating Instructions for Rotary Joints Series DX/DXS
3
.
Safety
10/27
© 2011 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 Maier.
AB-DX_en – Version 08 – 01.03.2011
B
3.5
Risk assessment and residual risks
Rotary joints are machine components that can be used in a large variety of machines
and system. These products are not subject to the Machinery Directive 2006/42/EC – ha-
zards caused by this product are treated by compliance with the pertinent directive
97/23/EC (Pressure Equipment Directive). Directive 94/9/EC (Explosion Protection Direc-
tive) additionally applies to "ATEX" certified rotary joints.
After installation of our rotary joints into systems/machines, these are subject to the Ma-
chinery Directive and may be subject to additional directives and legislation. The user of
our products is responsible for complying with all pertinent directives and legislation as
well as for performing a risk assessment in accordance with these directives. Depending
on the actual installation situation and the actual use of our product, risks may arise that
should be avoided by design measures, if possible.
An analysis carried out by Christian Maier GmbH & Co. KG Maschinenfabrik resulted in
the aspects listed below which necessitate an additional risk assessment by the user af-
ter installation of our products in the system/machine:
If hot parts are touched or if hot or hazardous fluids escape under high pressure or if
rotating parts draw in persons, this may result in severe burns, cuts or crushing.
–
Possible measures: Mount a protective cover to the rotary joint that prevents di-
rect contact with hot parts, safely retains escaping fluid and avoids contact with
rotating parts.
–
If a hood cannot be mounted, other suitable protective measures must be taken.
Always use the housing connections provided for the safe discharge of leaking
fluid.
If the rotary joint blocks and rotates along with the roller, hoses can be torn off and
hot or hazardous fluids may escape under high pressure.
–
Always observe the design and mounting and operation information in chapter 5.
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In particular in the case of greater nominal diameters in connection with higher
speeds and temperatures, it is recommended to monitor the rotary joint by means
of a torque monitoring system – alternatively by means of a vibration sensor.
–
Ensure that the unit is regularly maintained as per chapter 7.
The user of our products must verify the applicability and effectiveness of the possible
measures listed in the actual situation.
