18
Wilo AG 05/2007
Englis
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Spare parts
8.5 Screw torques
9 Spare parts
In order to avoid returns and incorrect orders, please specify the
name plate data for all orders.
Torque (± 10%)
Location
Material/SAE Grade
Diameter (inches)
ft lb
Nm
Impeller-Shaft
Stainless steel
3/8
22
30
1/2
44
60
5/8
74
100
Pump housing - lantern
SAE Grade 5
5/8
75
100
Adapter flange - lantern
SAE Grade 5
5/16
18
25
1/2
44
60
Lantern - motor
SAE Grade 5
3/8
26
35
1/2
44
60
5/8
74
100
Coupling
SAE Grade 8
1/4
9
12
5/16
22
30
3/8
44
60
1/2
74
100
Pressure taps - plug screw
1/4-18 NPT
15
20
Caution: Damage due to incorrect spare parts!
Only original Wilo spare parts are to be used to insure fault-free
pump operation.
