Burks BPLHS Series, Installation And Operation Manual, Page: 9 / 54

9
ATTENTION
Pumps that do not stand steady or stable on
their own, should be mounted on a rigid
and stable base.
ATTENTION
Place the pump there where there is the
lowest risk for noise nuisance.
1. Place and install the pump on a level, stable surface in
a dry and frost-proof room.
2. Make sure that suf
fi cient air can reach the cooling fan
of the motor. For this purpose the free space above the
cooling fan should be at least ¼ of the diameter of the
fan cover air intake.
3. Install the pump with counter
fl anges. Pumps with non-
standardised connections; counter fl anges are delivered
separately.
4. Install a valve on the supply and on the delivery
connection of the pump.
5. If there is a chance that when the pump is standing still
the medium can
fl ow back, it is advised to install a non-
return valve.
6. Make sure that the inlet of the pump is never clogged.
F-1.1) Indicators:
The arrow (A) on the pump foot indicates the fl ow direction
of the liquid. The arrow (B) on the top bracket indicates the
rotating direction of the motor.
F-1.2) Install bypass:
Install a bypass if the pump operates against a closed
valve. The required capacity of the bypass is at least
10% of the optimum volume
fl ow. At high operating
temperatures a higher volume fl ow is required. Refer to the
table “Minimum volume fl ows” in the paragraph “Working
range”
F-2) Mounting a motor on the pump:
ATTENTION
It is to be advised to use a special designed
BP Pumps motor. Before installing an other
brand/standard IEC-norm motor, BP Pumps
has to be consulted to judge the applicability.
The motor has to conform to the following conditions:
• Increased power output (to limit the standard installed
motor
power)
• Reinforced bearing at driven end (to withstand the axial
force)
• Fixed bearing at driven end (to minimize the axial play)
• Smooth shaft, no key lock (to improve the coupling grip
and to improve the motor balance)
The advised bearings per motor type are:
(HP) Axial Bearing (HP) Co-axial Bearing
0.50 6203-2RS 7.50 6308-2Z-C3
0.75 6203-2RS 10.00 6308-2Z-C3
1.00 6204-2RS 15.00 7309-BEP
1.50 6204-2RS 20.00 7309-BEP
2.00 6305-2Z-C3 25.00 7309-BEP
3.00 6305-2Z-C3 30.00 7311-BEP
5.00 6306-2Z-C3 40.00 7312-BEP
50.00 7312-BEP