Danfoss APP Series User Manual page 24

Data sheet
4. Flushing valve
5. Flow at different rpm
6
4
at 80 bar and 3000 rpm
Torque at 80 bar
Weight
Integrated fl ushing valve
APP pumps - APP 1.5-3.5
1) Typical average fl ow at 80 bar (1160 psi).
2) For lower pressure, please contact Danfoss RO Sales Organization.
3) For higher pressure, please contact Danfoss RO Sales Organzation.
The diagram shows pressure differences across
4. Flushing valve
the flushing valve:
The diagram shows pressure diff erence across fl ushing valve
20
20
18
18
16
16
14
14
12
12
10
10
8
8
8
6
4
4
2
2
0
0 1
0 1
2
Using the diagram shown below, it is easy to
select the pump which fits the application best if
the flow required and the rotation speed (rpm) of
5. Flow at diff erent rpm
the pump are known.
Using the diagram shown below, it is easy to select the pump which fi ts the application best if the fl ow required and the rotation
speed (rpm) of the pump are known.
4
3,5
3
2,5
2
1,5
1
0,5
0
0 500 1000
Furthermore, this diagram shows that the fl ow can be changed by changing the rotation speed of the pump. The fl ow/rpm ratio is
constant, and the "required " fl ow can be obtained by changing the rotation speed to a corresponding value. Thus, the required rpm
Furthermore, this diagram shows that the flow
can be determined as:
can be controlled by changing the rotation
speed of the pump. The flow/rpm ratio is
constant, and the "required" flow can be
6. Power requirements
obtained by changing the rotation speed to a
Pump model Flow
corresponding value. Thus, the required rpm can
be determined as:
l/min m /h
3
APP1.5 25.11 1.51
Required flow × Rated rpm
APP1.5 30.17 1.81
Required rpm =
APP1.8 26.78 1.61
Rated flow
APP1.8 32.18 1.93
APP2.2 33.48 2.01
APP2.2 40.22 2.41
APP2.5 41.94 2.52
180R9267 / IOM APP 1.5-3.5 Appendices - v04 / 11.2013
521B0850 / DKCFN.PD.013.FA6.02 / 09.2012
APP3.0 48.2 2.9
APP3.5 56.0 3.4
The power requirements can be determined using one of the following guiding equations:
(hp) (6) (6.3)
Nm 14,2 15.3
(lbf-ft) (10.5) (11.3)
Kg 8.6 8.6
(lb) (17) (17)
YES YES
APP 1.5-3.5 flushing valve characteristic
APP1.5-3.5 flushing valve characteristic
2 2
2
Pressure [bar]
Pressure [bar]
DKCFN.PD.013.FA6.02
1500 2000
rpm
Required fl ow × Rated rpm
Required rpm =
Rated fl ow
Pressure
60 bar 70 bar
gpm 870 psi 1015 psi
6.63 3.21 kW 3.75 kW
7.97 3.86 kW 4.51 kW
7.07 3.43 kW 4.00 kW
8.50 4.12 kW 4.81 kW
8.84 4.29 kW 5.00 kW
10.63 5.15 kW 6.01 kW
11.08 5.07 kW 5.92 kW
12.7 6.2 kW 7.2 kW
14.8 7.2 kW 8.4 kW
(7.9) (9.6) (11.3) (13.1)
19 23 25.6 29.7
(14) (17) (18.8) (21.9)
8.6 8.6 8.6 8.6
(17) (17) (17) (17)
YES YES YES YES
4) Intermittent pressure is acceptable for less than
10 seconds per minute.
5) For speeds above 3000 rpm the pump must be
boosted at a pressure of 2-5 bar (29.0 - 72.5 psi).
3 4
3 4
APP3.5
APP3.0
APP2.5
APP2.2
APP1.8
APP1.5
2500 3000 3500
rpm Calc. factor
80 bar
1160 psi
4.29 kW 2890 468.6
5.15 kW 3470 468.6
4.57 kW 2890 463.2
5.49 kW 3470 463.2
5.71 kW 2900 468.6
6.87 kW 3480 468.6
6.77 kW 2900 484.8
8.2 kW 2930 470.0
9.6 kW 2930 470.0
5
5
521B0850