Installation | 5
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Water pressure before flow regulation valve
(once through operation only)
bar(g)
1
Max. allowable supply temperature
°C
80
Max. allowable kinematic viscosity
mm
2
/s
20
Consider the motor power for
anything other than water -
consult Busch.
Max. allowable particle size
mm
0.2*
* For all operating systems make sure that no particles with a diameter larger than 0.2
mm will intrude the machine, neither via the process gas nor via the operating liquid.
Use suitable filtration as necessary.
The table below lists the recommended maximum levels of soluble compounds for use
with machine in cast iron construction.
Calcium carbonate
mg/l (ppm)
< 300**
PH value
6.5 … 9.5
Chloride
mg/l (ppm)
< 700
Sulphates
mg/l (ppm)
< 200
Nitrites
mg/l (ppm)
< 500***
Total dissolved solids
mg/l (ppm)
< 1000
** to prevent excessive built-up of scale
*** provided long period of exposure to stagnant water is not foreseen
NOTE
Stainless steel version.
Please note that machines in all stainless steel material offer higher levels of corrosion
resistance and can be used for operation outside of the above limits. Chemical compat-
ibility should always be checked by competent personnel before use, particular atten-
tion should be paid to elastomer material selection. If in doubt, please consult Busch.
5.4 Fitting the Coupling
WARNING
Unprotected coupling.
Risk of severe injury!
• Make sure that the coupling is protected by a cover or a guard.
In case of a machine supplied without a motor:
• Fit a suitable coupling that matches the machine and motor shaft size.
• Make sure that the coupling is sized to withstand the full motor torque.
• Make sure that the coupling is correctly aligned according to the coupling instructions.
• Install a protective cover or a guard.
Machine type
Machine shaft size (mm)
LR 0110 A & LR 0140 A
50
LR 0210 A & LR 0300 A
70
LR 0420 A
100
LR 0580 A
120
