Danfoss APP 46 Installation, Operation And Maintenance Manual page 43

Operating guide
© Danfoss | 2023.03
Installation, Operation and Maintenance APP 21-46 pumps
6. Adjust respectively, verify the measure-
ment, and secure both couplings with the
right torques on the locking screws (see
coupling operation & mounting instruction).
7. Mount the elastic gear ring and mount the
bell housing/pump on the motor. After
mounting it must be possible to move the
elastic gear ring 3-5 mm (0.12 - 0.2 inch)
axial "C". The check can be done through
the inspection hole of bell housing. Secure
ange bolts with the right torque.
1: Bolts: torque 100 Nm ±10 Nm
2: Nuts: torque 40 Nm ±4 Nm
3: Torque see table below
C
3.2 Direction of rotation
Is indicated by an arrow on the pump label.
PUMP
Type APP 38
Code no. 180BXXXX
Serial no. XXXXXXXX-XXX
3.3 Orientation
The pump can be mounted/orientated in any
horizontal direction with the inlet and the outlet
pointing upwards, downwards or to either side.
3.4 Protection from too high pressures
The pump should be protected against too high
pressure by means of a safety valve or a pressure
relief valve.
If alternative mounting is desired, please contact
Danfoss High Pressure Pumps.
Choose proper tolerances to ensure an easy
mounting of the elastic coupling without use of
tools.
Please take care to observe the recommended
length tolerances of the chosen coupling, as an
axial force on the pump will damage the pump.
("C" can be found on the drawing below).
1
3
2
2
1
Thread
size
Torque
(Nm)
The valve should be placed as close to the pump
as possible.
The opening characteristics of the valve must not
result in peak pressures higher than 100 barg
(1450 psig).
MADE IN DENMARK
We recommend the use of exible soft hoses
both in the inlet and in the outlet lines.
Danfoss A/S, 6430 Nordborg, Denmark
3.5 Grounding
To prevent stray current corrosion we recom-
mend grounding of the pump and all other parts
in the system. All parts in the system must be
electrical potential equalized to a single
reference point (grounding point). It is recom-
mended that the electrical resistance in the
grounding cable is equal to or below 0.25 Ω
toards the grounding point.
M5 M6 M8 M10
2 4.8 10 17
180R9407 | AQ274347577038en-000902 | 43