Limitorque
®
MX Electronic Actuator FCD LMENIM2306-09-AQ – 08/17
104
7.1 Specific Conditions of Use (denoted by X after the certificate number)
for Atex and IECEx Applications
1. ISO Class 12.9, M8/M10/M16/M20 socket-head cap screws (Yield Stress 1100 MPa) shall be used to replace the
terminal, control, or motor compartment fasteners.
2. K-500 Monel, M8 socket-head cap screws (Yield Stress 700 MPa) shall be permitted as an alternative to the ISO
Class 12.9 socket-head cap screws on the terminal or control compartments of Group IIB actuators.
3. K-500 Monel, M8/M10 socket-head cap screws (Yield Stress 700 MPa) shall be permitted as an alternative to the
ISO Class 12.9 socket-head cap screws on the motor compartments of Group IIB, MX-05/10/20/40/85/140 (56
frame) actuators.
4. Stainless steel, A2 or A4, ISO Class 70, M10 socket-head cap screws (Yield Stress 450 MPa) shall be permitted as
an alternative to the ISO Class 12.9 socket-head cap screws on MX-85 motor compartments.
5. Stainless steel, A2 or A4, ISO Class 70, M8 socket-head cap screws (Yield Stress 450 MPa) shall be permitted as
an alternative to the ISO Class 12.9 socket-head cap screws on the terminal or control compartments of Group IIB
actuators.
6. Stainless steel, A2 or A4, ISO Class 70, M10/M16/M20 socket-head cap screws (Yield Stress 450 MPa) shall
be permitted as an alternative to the ISO Class 12.9 socket-head cap screws on MX-140 (180 frame) or MX-150
motor compartments.
7. Consult the manufacturer if dimensional information on the flameproof joints is necessary.
8. Single Phase Series MX Actuators shall not be applied in an explosive dust atmosphere where high electrostatic
charging processes are present that could result in propagating brush discharges. See IEC 60079-32-1 for
additional guidance.
7.2 Statement of Compliance With Applicable European Directives
We, Flowserve Limitorque, 5114 Woodall Road, Lynchburg, VA, USA 24502, as the manufacturer of the equipment
listed below:
MX-05, 10, 20, 40, 85, 140 and 150 electronic valve actuator. The MX is a non-intrusive
electronic actuator. It is specifically designed for the purpose of being mounted to multi-turn
valves (or other apparatus) in order to move the valve from fully closed to fully open.
Confirm, in accordance with the requirements of clause 1.2.7 of the Essential Health and Safety Requirements of
Community Directive 94/9/EC on equipment before April 20, 2016 and address the Essential Health and Safety
Requirements of Community Directive 2014/34/EU after April 20, 2016 and protective systems intended for use in
potentially explosive atmospheres that the above equipment has been designed and manufactured to:
a) Avoid physical injury or other harm which may be caused by direct or indirect contact;
b) Assure that the surface temperature of accessible parts or radiation which cause a danger, are not produced;
c) Eliminate non-electric dangers which are revealed by experience;
d) Assure that foreseeable conditions of overload shall not give rise to dangerous situations.
And where these risks are wholly or partly covered by other Community Directives, the equipment satisfies the
requirements of those specific Directives.
And that literature describing the equipment will not contradict the instructions with regard to safety aspects.
LMENIM2306-09 AQ.indd 104 Mittwoch23.08.17 08:53
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