Danfoss APM 0.8, APM 1.0, APM 1.2, APM 1.8, APM 2.0 Data sheet

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Data sheet
Data sheet
APP pumps
APM motor APM 0.8 / APM 1.0 / APM 1.2 /
APP 0.6-1.0 / APP 1.5-3.5 / APP (W) 5.1-10.2 /
APP 11-13 / APP 16-22 / APP 21-43
hpp.danfoss.com.
ro-solutions.com
Data sheet | APM 0.8 – 2.9 motors
Table of Contents
1. Introduction ............................................................................3
2. Benets.................................................................................3
3. Technical data ..........................................................................4
3.1 APM 0.8 – 1.2............................................................................4
3.2 APM 1.8 – 2.9............................................................................5
4. Direction of rotation ...................................................................6
5. Shaft load...............................................................................6
6. Temperature and corrosion..............................................................7
7. Noise level ..............................................................................7
8. Filtration................................................................................7
9. Orientation .............................................................................8
10. Installation..............................................................................8
11. Preferred system design.................................................................9
11.1 Membrane system with energy recovery ...............................................10
11.2 Membrane system with energy recovery and VFD.......................................11
12. Combinations..........................................................................12
12.1 Examples of motor / pump combinations...............................................12
12.2 Flow ...................................................................................12
12.3 Energy consumption vs. pressure.......................................................13
12.4 Power consumption....................................................................13
13. Dimensions ............................................................................14
13.1 APM 0.8 – 1.2...........................................................................14
13.2 APM 1.8 – 2.9...........................................................................15
14. Service.................................................................................16
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Data sheet | APM 0.8 – 2.9 motors
1. Introduction
APM motors are designed for energy recovery systems together with an APP hydraulic pump and a double shaft motor. APM motors convert hydraulic energy (pressure, ow) to mechanical energy (torque, speed).
This data sheet is valid for APM hydraulic motors. APM hydraulic motors are build to operate on salt water and are based on the axial piston principle with xed displacement, enabling a very light and compact design. Lubrication of the moving parts is provided by the salt water itself. Shaft speed is proportional to the input ow.
The APM motor is not self-starting but needs a rotational force to start turning.
Below a sectional drawing as an example of an APM motor
2. Benets
Constant torque over a wide speed range
Compact design
Easy to install
Long life under severe operating conditions
Few wear parts and low maintenance costs
No oil lubrication
Non-corroding materials
Made for RO applications
AI354846545311en-000101 | 3Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
3. Technical data
3.1 APM 0.8 – 1.2
Motor size APM 0.8 APM 1.0 APM 1. 2
Code number APM CCW 180F1000 180F1001 180F1002
Geometric displace­ment
Pressure
Max. inlet pressure continuous
Min. inlet pressure continuous
Outlet pressure
Speed
Min. speed rpm 700 700 700
Max. speed continuous
Typical performance
Max. waterow
Max. power at max. speed cont. and max. pressure
Max. torque at max. pressure
Technical specications
Sound pressurre level dB(A) 74 74 74
Media temperature
Ambient temperature
Weight (dry)
cm³/rev. 4.07 5.08 6.30
in³/re v. 0.25 0.31 0.38
barg 80 80 80
psig 116 0 116 0 1160
barg 10 10 10
psig 145 145 145
barg 0.5 – 5 0.5 – 5 0.5 – 5
psig 7.3 – 72.5 7.3 – 72.5 7.3 – 72.5
rpm 3450 3450 3450
m³/h 0.92 1.12 1.37
l/min 15.3 18.6 22.9
gpm 4.0 4.9 6.1
kW 1.7 2.1 2.6
HP 2.3 2.8 3.5
Nm 4.7 5.8 7. 2
lbf-ft 3.4 4.3 5.3
°C 2 – 50 2 – 50 2 – 50
°F 35.6 – 122 35.6 – 122 35.6 – 122
°C 0 – 50 0– 50 0 – 50
°F 32 – 122 32 – 122 32 – 122
kg 5.2 5.2 5.2
lb 11.5 11. 5 11.5
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Data sheet | APM 0.8 – 2.9 motors
3.2 APM 1.8 – 2.9
Motor size APM 1.8 APM 2.0 APM 2.5 AMP 2.9
Code number APM CCW 18 0F1100 18 0F1101 18 0F1102 180F110 3
Geometric displace­ment
Pressure
Max. inlet pressure continuous
Min. inlet pressure continuous
Outlet pressure
Speed
Min. speed rpm 700 700 700 700
Max. speed continuous
Typical performance
Max. waterow
cm³/rev. 9. 31 10.0 12 .5 15. 3
in³/re v. 0.57 0 .61 0.76 0.93
barg 80 80 80 80
psig 116 0 116 0 1160 1160
barg 10 10 10 10
psig 145 145 145 145
barg 0.5 – 5 0.5 – 5 0.5 – 5 0.5 – 5
psig 7.3 – 72.5 7.3 – 72.5 7.3 – 72.5 7.3 – 72.5
rpm 3450 3450 3450 3000
m³/ h 2.03 2.18 2.69 2.83
l/min 33.9 36.4 44.8 47.2
gpm 9.0 9.6 11.8 12 .5
Max. power at max. speed cont. and max. pressure
Max. torque at max. pressure
Technical specications
Sound pressure level dB(A) 77 77 77 81
Media temperature
Ambient temperature
Weight (dry)
kW 3.9 4.2 5.3 5.6
HP 5.2 5.7 7.1 7.6
Nm 10.8 11 .7 14.7 18.0
lbf-ft 8.0 8.6 10.8 13.2
°C 2 – 50 2 – 50 2 – 50 2 – 50
°F 35.6 – 122 35.6 – 122 35.6 – 122 35.6 – 122
°C 0 – 50 0 – 50 0 – 50 0– 50
°F 32 – 122 32 – 122 32 – 122 32 – 122
kg 8.6 8.6 8.6 8.6
lb 19 19 19 19
AI354846545311en-000101 | 5Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
4. Direction of rotation
Connections and direction of rotation appear from the product label on the motors (see also the below drawing).
I Inlet
O Outlet
Motor variants
APM motors are optimezed for operation in one direction: CCW
5. Shaft load
Any axial and/or radial loads on the shaft must be avoided.
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Data sheet | APM 0.8 – 2.9 motors
80
70
60
50
40
30
20
6. Temperature and corrosion
Fluid temperature: Min. +2 °C to max. +50 °C (Min. +35.6 °F to max. +122 °F)
Ambient temperature: Min. 0 °C to max. +50 °C (Min. +32 °F to max. +122 °F)
Storage temperature: Min. -40 °C to + 70 °C - provided that the APM is drained of uid and stored “plugged”.
Antifreeze protection is required at temperatures below 0 °C.
º
C
316L
Duplex
Danfoss recommends using Dowcal N from Dow Chemical Company or Chillsafe mono propylene glycol from Arco Chemical Company.
The chart below illustrates the corrosive resistance of dierent types of stainless steel related to NaCl concentration and temperature. All critical parts of the APM motors are made of Duplex and Super Duplex. If the APM motor is operated above the Duplex line, always ush the APM with fresh water at operation stop to minimize the risk of crevice corrosion.
NaCI vs. temperature
Super Duplex
7. Noise level
8. Filtration
100
1000
160 1600
Generally, noise will be reduced if speed is re­duced and vice versa. Use exible hoses in order to minimize vibrations and noise.
Since the APM motor typically is mounted on a bell housing or frame, the noise level can only be determined for complete unit (system).
Proper ltration is crucial for the performance maintenance and warranty. The water supplied must be ltered: 10 µm abso­lute, ß10-value > 5000 lter is recommended.
-
10 000
16000
It is therefore very important that the energy recovery unit is mounted correctly on a frame with vibration absorber to minimize vibrations and noise.
The noise level is inuenced by:
The speed of the pump/motor. High rpm creates more noise than low rpm
Rigid mounting of the pump/motor gener­ates more noise than exible mount
Pipe mounting direct to the pump/motor increases the noise level compared to a exible hose
For further information on lters, please contact Danfoss High Pressure Pumps sales department.
100 000
160000
CI ppm
NaCI ppm
AI354846545311en-000101 | 7Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
9. Orientation
The drawing shows preferred acceptable, and not acceptable orientations of the motor.
Preferred
Not acceptable
10. Installation
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It is recommended to use exible coupling and ensure that the gab between the two metal parts of the coupling is min. 3 mm.
A: Elastic coupling B: Bell housing C: Motor shaft
AI354846545311en-000101
Data sheet | APM 0.8 – 2.9 motors
11. Preferred system design
APM is used for energy recovery unit which con­sists of an APP pump and an APM motor, both connected to a double shafted electric motor. Energy recovery is obtained when high-pressure brine from the membranes is fed to the APM that converts the energy in the pressurized brine to mechanical energy to be reused by the electric motor. As the APM has a xed volumetric dis­placement, the recovery rate will be xed.
System example
Permeate
Outlet
Pump
Feed
Motor
AI354846545311en-000101 | 9Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
The design of the system must ensure that self emptying of the water motor during standstill is avoided. Always place the outlet line higher than the water motor. Air in the water will cause cavitation and damage the water pump and the water motor.
11.1 Membrane system with energy recovery
1
4
APP
5
M
APM
8
Feed
Outlet
10 micron
2
absolut
Filter
6
PS
In order to eleminate the risk of damage and cavitation, observe the following guidelines:
1.
For easy system bleeding without start­ing up the system, the APP pump has an integrated ushing valve (1).
2.
Place an inlet lter (2) in front of the APP pump (3). Please consult section 8, “Filtra­tion” guidance on how to select the right lter.
Important: Thoroughly clean pipes and ush system prior to start-up — the APP pump and the APM must be bypassed
3.
Place a monitoring pressure switch (6) set at min. 1 bar between lter and pump inlet. The monitoring switch must stop the pump at pressures lower than 1 bar (14.5 psi). At 3000 rpm — use 2 bar (29 psi) as set point.
4.
Dimension the inlet and outlet lines to obtain minimum pressure loss (large ow, minimum pipe length, minimum number of bends/connections, and ttings with small pressure losses).
7
9
PI
3
5
9
PI
Brine
55
5.
Always maintain a positive pressure at the
17
Permeate
pump inlet (4) of min. 0.5 bar (7.3 psi) and max. 5 bar (72.5 psi). At speeds above 3000 rpm the pressure at the inlet of the water pump must be min. 2 bar (29 psi).
6.
Use exible hoses (5) to minimize vibrations and noise.
7.
Install a safety valve (7) in order to avoid system damage as the Danfoss APP pump creates pressure and ow immediately after start-up, despite any counter pressure.
8.
Always maintain a pressure at the motor inlet (8) of min. 10 bar (145 psi) and max. 80 bar (1160 p si).
9.
As the pressure on the outlet line must not exceed 5 bar (72.5 psi), do not throttle the water motor outlet.
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Data sheet | APM 0.8 – 2.9 motors
11.2 Membrane system with energy recovery and VFD
1
4
APP
5
M
APM
8
Feed
Outlet
10 micron
2
absolut
Filter
6
PS
In order to eleminate the risk of damage and cavitation, observe the following guidelines:
1.
For easy system bleeding without start­ing up the system, athe APP pump has an integrated ushing valve (1).
2.
Place an inlet lter (2) in front of the APP pump (3). Please consult section 8, “Filtra­tion” guidance on how to select the right lter.
Important: Thoroughly clean pipes and ush system prior to start-up — the APP pump and the APM must be bypassed
3.
Place a monitoring pressure switch (6) set at min. 1 bar between lter and pump inlet. The monitoring switch must stop the pump at pressures lower than 1 bar (14.5 psi). At 3000 rpm — use 2 bar (29 psi) as set point.
4.
Dimension the inlet and outlet lines to obtain minimum pressure loss (large ow, minimum pipe length, minimum number of bends/connections, and ttings with small pressure losses).
7
9
P-18
PT
3
5
9
10
55
Brine
In order to eliminate the risk of damage and
5.
PI
17
Permeate
cavitation, a positive pressure at the pump inlet (4) is always to be maintained at min.
0.5 bar (7.3 psi) and max. 5 bar (72.5 psi). At speeds above 3000 rpm the pressure at the inlet of the water pump must be min. 2 bar (29 psi) Use exible hoses (5) to minimize vibrations
6. and noise.
Always maintain a pressure at the motor inlet
7. (8) of min. 10 bar (145 psi) and max. 80 bar
(1160 p si). As the pressure on the outlet line must not
8. exceed 5 bar (72.5 psi), do not throttle the
water motor outlet. Using a VFD (10) makes it possible to control
9. the rotation speed, ramp up and ramp down
of the electric motor. By altering the rota­tion speed, the permeate production can be changed to obtain optimum energy reco­very. Install a pressure transmitter (9) to measure
10. the pressure at the membran inlet. Use the
signal from the pressure transmitter to obtain an automatic pressure-controlled adjustment of the VFD and optimum utilization and load of the membrane.
AI354846545311en-000101 | 11Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
12. Combinations 12.1 Examples of motor / pump combinations
APP pump/AMP motor APP 1.0/APM 0.8 APP 1.5/APM 1.2 APP 1.8/APM 1.2 APP 2.5/APM 2.0 APP 2.5/APM 1.8
1450 rpm
Feed ow m³/h (g pm) 0.50 (2.2) 0.80 (3.5) 0.85 (3.7) 1.25 (5.5) 1.25 (5.5)
Recovery rate % 29 28 32 29 32
Permeate (± 10%) m³/ h (gpm) 0.14 (0.6) 0. 22 (1.0) 0.27 (1.2) 0. 36 (1.6) 0.40 (1.8)
Electric motor (4 pole) 1.1 kW, IEC 90 1.5 kW, IEC 90 1.5 kW, IEC 90 2.2 kW, IEC 100 2.2 kW, IEC 100
2900 rpm
Feed ow m³/h (g pm) 1.05 (4.6) 1.55 (6.8) 1.65 (7.3) 2.55 (11.2) 2.55 (11.2)
Recovery rate % 29 28 32 29 32
Permeate (± 10%) m³/ h (gpm) 0.30 (1.3) 0.43 (1.9) 0.52 (2. 3) 0.74 (3.3) 0.82 (3.6)
Electric motor (2 poles) 2.2 kW, IEC 90 3 kW, IEC 100 3 kW, IEC 100 5.5 kW IEC 132 5.5 kW IEC 132
1 gpm = 3.79 l/min
12. 2 Flow
1 l/min = 0.26 gpm 1 m³/h = 4.40 gpm 1 gpm = 0.23 m³/h
APP 2.5/APM 1.8
APP 1.8/APM 1.2
APP 1.0/APM 0.8
APP 2.5/APM 2.0
APP 1.5/APM 1.2
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Due to tolerances of both the pumps and the motors, permeate production will vary according to the gures above.
AI354846545311en-000101
Data sheet | APM 0.8 – 2.9 motors
3
3,5
4
4,5
5
50 60 70
kWh/m
3
bar
Energy cons umption vs. Pre ssure
APP1.5/APM1.2
APP1.0/APM0.8
APP2.5/APM2.0
APP1.8/APM1.2
APP2.5/APM1.8
12.3 Energy consumption vs. pressure
A variation of up to 20% may occur depending on the rpm and the eciencies of the pump and the motor. The curves below are calculated using an e­ciency of the electric motor of 86% and provided that the pressure at the inlet of the APM motor is 1 bar less than the pressure from the APP pump.
12.4 Power consumption
Motor / pump combination
APP 1.0/ APM 0.8
kWh
APP 1.5/ APM 1.2
kWh
APP 1.8/ APM 1.2
kWh
1 hp hr = 0.75 kWh 1 kWh = 1.34 hp hr
APP 2.5/ APM 2.0
kWh
APP 2.5/ APM 1.8
kWh
Recovery rate (%) 29 28 32 29 32
50 bar (725psi) 1450 rpm 0.6 0.9 0.9 1.4 1.5
50 bar (725 psi) 2900 rpm 1.2 1.7 1.9 2.8 3.0
60 bar (870 psi) 1450 rpm 0.7 1.0 1.2 1.7 1.5
60 bar (870 psi) 2900 rpm 1.5 2.1 2.3 3.4 3.5
70 bar (1015 psi) 1450 rpm 0.8 1.2 1.3 2.0 2.1
70 bat (1015 psi) 2900 rpm 1.7 2.4 2.7 3.8 4.0
The gures in the table above are calculated using an eciency of the electric motor of 86% and provided that the pressure at the inlet of the APM motor is 1 bar less than the pressure from the APP pump.
AI354846545311en-000101 | 13Danfoss | DCS (im | 2020.09
Data sheet | APM 0.8 – 2.9 motors
13. Dimensions
13.1 APM 0.8 – 1.2
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Data sheet | APM 0.8 – 2.9 motors
13.2 APM 1.8 – 2.9
Outlet
Outlet Inlet
AI354846545311en-000101 | 15Danfoss | DCS (im | 2020.09
14. Service Warranty
Danfoss APM motors are designed for long operation, low maintenance and reduced lifecycle costs.
Provided that the motorp has been running according to the Danfoss specications, Danfoss guarantees 8,000 hours service-free operation, however, max. 18 months from date of production.
If Danfoss recommendations concerning system-design are not followed, it will strongly inuence the life of the APM motors. Other factors that aect motor performance and lifetime include:
- Running the motor at speed outside specications.
- Supplying the motor with water at temperature higher than recommended.
- Running the motor at inlet pressure outside specications.
- Running the motor at outlet pressure outside the specications.
Maintenance
Periodic inspections are required to ensure worn parts (if any), are replaced in due time. Opera­tional conditions such as water quality should be taken into consideration when determining the frequency of the inspections. Danfoss recom­mends yearly inspections. It is recommended to order the purpose­designed tool kit.
Motor shutdown:
The APM motors are made of Duplex/Super Duplex materials with excellent corrosion properties. It is, however, always recommended to ush the motor with freshwater when the system is shut down. When stopping the motor for more than 1 day ush the motor with permeate by rotating the motor for 10 sec. The motor can be ushed with biocide like the membranes. The biocide must be compatible with the materials used in our motors.
Repair assistance
In case of irregular function of the APM motor, please contact Danfoss High Pressure Pumps.
Danfoss A/S
High Pressure Pumps DK-6430 Nordborg Denmark
Danfoss ca n accept no respons ibility for pos sible errors in ca talogues, bro chures and other pr inted material. Da nfoss reserves t he right to alter its p roducts with out notice. This also a pplies to produc ts already on ord er provided that su ch alterations ca n be made without su bsequential cha nges being nece ssary in speci cations alread y agreed. All trade marks in this mate rial are proper ty of the respec tive companies . Danfoss and the Dan foss logotyp e are trademark s of Danfoss A/S. Al l rights reserv ed.
© Danfoss | DCS (im) | 2020.09
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