3.0 Technical Data; Rotor Clearances For 150°C - Johnson Pump Top Wing Series Manual

Rotary lobe pumps
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3.0 Technical data

3.1
Rotor clearances
Clearances for liquid temperature of max 150°C.
A =
B =
C =
D =
Pump type
min
TW1/0041
0.080
TW1/0082
0.100
TW2/0171
0.125
TW2/0343
0.135
TW3/0537
0.150
TW3/1100
0.165
TW4/1629
0.200
TW4/3257
0.225
A.0500.301/314.B – IM-TW/10.00 GB (0401)
C
Axial clearance rotor/pump cover
Axial clearance rotor/back side rotor case
Radial clearance rotor/rotor case top and side
Clearance rotor/rotor
A [mm]
max
min
0.105
0.04
0.125
0.05
0.150
0.10
0.160
0.11
0.175
0.12
0.190
0.14
0.225
0.18
0.250
0.22
A
B [mm]
C [mm]
max
min
0.12
0.05
0.14
0.08
0.20
0.10
0.20
0.12
0.23
0.12
0.25
0.14
0.305
0.17
0.34
0.20
B
D [mm]
max
min
0.12
0.05
0.15
0.07
0.17
0.09
0.20
0.12
0.22
0.13
0.24
0.15
0.30
0.18
0.33
0.22
max
0.14
0.16
0.19
0.21
0.23
0.25
0.31
0.35
19

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