Conditions Of Use For Fludex Couplings In Potentially Explosive Areas; Fitting; Instructions For Applying The Finished Bore And Fitting The Axial Retaining Means, Set Screws And Balancing; Finished Bore - Siemens Flender FLUDEX 4600 Series Operating Instructions Manual

5.4

Conditions of use for FLUDEX couplings in potentially explosive areas

The coupling with fusible safety plug with indication
Directive 2014/34/EU:
• Equipment group II (use above ground) temperature class T3 of category 2 and 3 for areas where there
are explosible gas, vapour, mist, air mixtures as well as for areas where dust can form explosible
atmospheres.
• Equipment group I (underground applications) of the category M2
If it is to be used below ground in potentially explosive areas, the coupling, which is
made of aluminium, must be provided with a robust casing to preclude the risk of
ignition from e.g. friction, impact or friction sparks.
The depositing of heavy metal oxides (rust) on the coupling housing must be
precluded by the casing or other suitable precautions.
The FLUDEX coupling can be delivered with attached brake disk or V­belt pulley.
The supplier of the subassembly is responsible for the construction of the belt drive
or brake disk in conformity to the guidelines. To be noted are, amongst other things,
hazards from electrostatic charging and hot surfaces.
The use of V­belts in conjunction with IIC gases is not permitted.
6.

Fitting

Observe the instructions in section 3, "Safety instructions"!
The FLUDEX coupling is delivered exclusively with a finish­bored and grooved hollow shaft (106).
At the customer's express request Flender also delivers unbored or prebored coupling parts for the
N­EUPEX add­on coupling.
The necessary refinishing must be carried out in strict compliance with the following specifications and with
particular care!
Responsibility for carrying out the refinishing is borne by the customer.
Flender will accept no guarantee claims arising from unsatisfactory refinishing.
Couplings with CE marking for use in potentially explosive areas are delivered
exclusively with finish­bored hubs.
6.1

Instructions for applying the finished bore and fitting the axial retaining means, set screws and balancing

6.1.1

Finished bore

• On part 1: Remove flexible elements.
• On part 5: Remove part 8.
• On part 13: Remove part 3.
• On part 32: Remove part 6.
• Remove preservative agent from coupling parts.
Observe manufacturer's instructions for handling solvent.
FLUDEX 4600 en
Operating instructions 10/2017
is suited for the service conditions specified in
13