9.4
Flamepaths on explosion-proof motors
Table 29: Overview of flamepaths
Motor sizes
Pump set
DKN 82
F 50-170
S 50-17...
F 65-220
3
1
2
Shaft
Pump casing
Cable gland
Flamepath number
1
2
3
Length of flamepath [mm]
≥ 12.5
≥ 12.5
≥ 12.5
Inside diameter (drilled hole) [mm]
30
142
32
Outside diameter (shaft) [mm]
29.9
142
32
Tolerance ISO inside diameter
F7
H8
H8
Tolerance ISO outside diameter
-
g6
-
Tolerance in µm inside diameter to
DIN ISO 286/2
Maximum
+41
+63
+39
Minimum
+20
0
0
Tolerance in µm outside diameter to
DIN ISO 286/2
Maximum
-
-14
-
Minimum
-
-39
-
Tolerance in µm inside diameter
Maximum
-
-
-
Minimum
-
-
-
Tolerance in µm outside diameter
Maximum
-40
-
-25
Minimum
-60
-
-75
9 Related Documents
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Amarex® N
Goodnal STP ST041 Biological Treatment (KSB WAS PUMP 1 & 2 PU-0530-010 OM Instructions) Vendor Manual
Q-Pulse Id VM381
Active 29/10/2013
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