Parker EX Series - Flameproof Enclosure Components; ATEX Flameproof Joints Information

132 – Pvd3665_Gb_Ex_August 2022
4.4.2. Informations about the flameproof enclosure components
The Ex motors of Parker Hannifin France has a traceability on the frameprood enclosure
compotents. It is forbidden to replace on of these components without consulting Parker
Hannifin.
If a cover exchange between two identical motors is required, the customer must make a
new traceability on these components. To make the traceability, the customer must refer to
the number written on the cover.
4.4.3. ATEX flameproof joints informations ATEX/IECEx
In accordance with the standards for explosive atmospheres, find below the detail of the
ATEX/IECEx flameproof joints
Size EX3 :
Flameproof joints
Joint length
Joint gap
Joint between the shaft and the housing
9,5 mm min
0,245 mm Max
Joint between the housing and the rear flange
13,4 mm min
0,177 mm Max
Joint between the rear flange and the cover
12,7 mm min
0,087 mm Max
Size EX4 :
Flameproof joints
Joint length
Joint gap
Joint between the shaft and the front flange
12,5 mm min
0,239 mm Max
Joint between the front flange and the housing
14,3 mm min
0,059 mm Max
Joint between the housing and the rear flange
12,9 mm min
0,069 mm Max
Joint between the rear flange and the cover
12,9 mm min
0,106 mm Max
Size EX6 :
Flameproof joints
Joint length
Joint gap
Joint between the shaft and the front flange
12,5 mm min
0,239 mm Max
Joint between the front flange and the housing
13,7 mm min
0,069 mm Max
Joint between the housing and the rear flange
13,4 mm min
0,069 mm Max
Joint between the rear flange and the cover
13,42 mm min
0,069 mm Max
Taille EX8 :
Flameproof joints
Joint length
Joint gap
Joint between the shaft and the front flange
12,5 mm min
0,178 mm Max
Joint between the front flange and the housing
12,7 mm min
0,079 mm Max
Joint between the housing and the rear flange
13,5 mm min
0,079 mm Max
Joint between the rear flange and the cover
14,1 mm min
0,146 mm Max