Danfoss iSave 50, iSave 70 Data sheet

Data sheet

iSave® Energy Recovery Device

iSave 50 / iSave 70

hpp.danfoss.com

Data sheet | iSave 50 and iSave 70

Table of Contents Contents

1. General information.....................................................................3

2. Benets.................................................................................3

3. Applications ............................................................................3

4. Technical data ..........................................................................4

4.1 iSave without motor ....................................................................4

4.2 iSave with IEC motor ....................................................................6

4.3 iSave with NEMA motor .................................................................7

5. Performance curves.....................................................................8

5.1 Flow at dierent rpm....................................................................8

5.2 iSave 50 ow curves.....................................................................8

5.3 iSave 70 ow curves.....................................................................8

5.4 Torque curve for iSave 50 and iSave 70...................................................9

5.5 Mixing curve ............................................................................9

6. Temperature and corrosion.............................................................10

6.1 Operation..............................................................................10

7. Installation.............................................................................10

7.1 Operation and mounting...............................................................10

7.2 Horizontal mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7.3 Connection to inlet or discharge ports: .................................................11

7.4 Filtration...............................................................................11

7.5 N o ise ..................................................................................11

7.5 RO systems with an iSave...............................................................12

8. Dimensions and connections...........................................................14

8.1 iSave 50-70 without electric motor .....................................................14

8.2 iSave 50-70 with with IE3 motor 18.5 kW on base frame vertical_front mounted .........15

8.3 iSave 50-70 with with IE3 motor 18.5 kW on base frame vertical_back mounted..........16

8.4 iSave 50-70 with with IE3 motor 18.5 kW on base frame horizontal ......................17

8.4 iSave 50-70 th NEMA motor 30 HP on base frame vertical - front mounted ...............18

8.5 iSave 50-70 with NEMA motor 30 HP on base frame vertical - back mounted .............19

8.5 iSave 50-70 with NEMA motor 30 HP on base frame horizontal ..........................20

9. Service.................................................................................21

9.1 Warranty...............................................................................21

9.2 Operational conditions of concern......................................................21

9.3 Maintenance...........................................................................21

9.4 Repair assistance.......................................................................21

10. Accessories ............................................................................21

11. Useful documents......................................................................21

2

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

1. General information Energy Recovery Devices (ERD) are used in
reverse osmosis (RO) systems to recycle the
energy held in discharged brine from the
membranes. Thus, iSave 50 and iSave 70 are
designed for use with low viscosity and corrosive
uid such as sea water.

The Danfoss iSave Energy Recovery Devices all
consist of an isobaric pressure exchanger and a
positive displacement pump combined into one
compact unit. The high-pressure booster pump
is based on the vane pump principle enabling a
very light and compact design. The vane pumps
are xed displacement pumps in which the ow
is proportional to the number of revolutions
(rpm) of the driving shaft – enabling ow control.
Speed control is made by a VFD. The iSave design
ensures lubrication of the moving parts by the
uid itself.

1. 3” Victaulic connections

2. Shaft

3. Low pressure shaft seal

4. Port ange

6. Valve plate

7. Cylinder barrel

9. Port plate (brine)

10. Port plate (sea water)

11. Vane s

12. Coupling

13. Intermediate ange

14. Rotor

15. Rotor element

16. Sealing plate

17. Stat or

18. Motor end ange

All parts included in the iSave 50 & 70 are
designed to provide long service life with a
constant high eciency and minimum service
required.
Unlike a centrifugal pump, it produces a similar
ow at a given speed no matter what discharge
pressure.

2. Benets • Corrossion resistance (all wetted parts are made

• Signicant power savings and low specic

energy consumption (SEC)

• Simple and space-saving installation with

both pump and pressure exchanger in one

of high corrosion-resistant materials e.g. Super
Duplex or Duplex)

• Fewer components

unit

• Simple system design and monitoring

without requirement for high-pressure ow
meters

• Simple operation with design that prevents

overspin/overushing

• Easy modular service

3. Applications

Danfoss iSave ERDs are built into a broad range
of RO desalination plant around the world.
Typical applications for iSave 50 - 70 will be:

• Containerized solutions for hotels and
resorts on islands as well as coastal regions

• Onboard systems for ships

• Oshore platforms for the oil and gas
industry

• Municipal and private waterworks

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

3

Data sheet | iSave 50 and iSave 70

4. Technical data 4.1 iSave without motor

iSave size iSave 50 iSave 70

Code number 180F7020 180F7021

Pressure

Max. dierential pressure (HP out - HP in)

Min. pressure HP out (min. allowable working
pressure)

Max. pressure HP out (Max. allowable working
pressure, MAWP)

Min. pressure on HP in,
intermittent

Max. pressure LP in (MAWP)

Max. pressure LP in, peak

Min. allowable working pressure LP in

Max. dierential pressure (LP in - LP out)

Max. static test pressure (HP in and HP out)

Max. static test pressure (LP in and LP out)

Speed

Min. speed rpm 525 625

Max. speed rpm 650 875

Typical ow

Flow at min. speed, HP out

Flow at max. speed. HP out

Max. lubrication ow at 60 barg (871 psig)

Peak ow, LP in

Max. allowable working ow, LP in

1)

2) 3)

4)

10)

barg 5 5

psig 72 72

barg 40 40

psig 580 580

barg 83 83

psig 120 0 120 0

barg 2 2

psig 29 29

1)

barg 5 5

psig 72 72

barg 10 10

psig 145 145

barg 2 2

psig 29 29

barg 0.53 0.79

psig 7.69 11.4 6

barg 108 108

psig 1566 156 6

barg 13 13

psig 189 189

m³/ h 42 50

gpm 184 220

m³/ h 52 70

gpm 228 308

l/min 25 25

gpm 6.6 6.6

m³/ h 120 120

gpm 528 528

7)

m³/ h 57. 2 70

gpm 252 308

4

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

Technical specications

Media temperature

Ambient temperature

Filtration requirements (nominal)

Salinity increase at membrane at 40% recover y rate at
balanced ow

Weight (dry)

Weight (operation with water)

Noise

Sound pressure level L

Torque data

Max. allowable working torque

Max. starting torque (stick/slip)

o

5)

6)

9)

C 2-35 2-35

o

F 36-95 36-95

o

C 0-50 0-50

o

F 32-122 32-122

3 micron melt-blown

2-3%

kg 164 164

lb 362 362

kg 172 172

lb 379 379

8)

PA

1 m

dB(A) 83 86

Nm 170 190

lbf-ft 125 140

Nm 180 180

lbf-ft 132 132

1)

Max. allowable working pressure of continous
operation. For lower and higher pressure, please
contact Danfoss.

2)

Typical pressure level at start-up and permeate

ush.

3)

Intermittent pressure is acceptable for less than 10

minutes within a period of 6 hours.

4)

Typical average ow at 60 barg and 3 barg

dierential pressure

5)

Dependent on NaCI concentation.

6)

Please see section 7.4 ltration.

7)

Continuous operation: iSave can operate
continuously with up to 10% over ush with the
limitation that the ow rate at LP inlet shall not
exceed 70 m3/h.

8)

A-weighted sound pressure level at 1 m from the
pump unit surfaces (reference box) acc. to EN ISO
20361 section 6.2. The noise measurements are
performed acc. to EN ISO 3744:2010 on a motor-
pump-unit at max. pressure and rpm.

9)

Balanced ow: The mixing rate is dened at
balanced ow when HP-out is equal to LP-in.

10)

At system start-up: iSave can run for up to 10 min.
with 150% of max. rated ow at LP inlet. The time
where max. rated ow is exceeded should be kept
as short as possible to minimize wear.

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

5

Data sheet | iSave 50 and iSave 70

4.2 iSave with IEC motor

i

iSave size iSave 50 iSave 70

Code number (vertical) 180F7038 180F7040

Code number (horizontal) 180F7023 180 F7025

Pressure, Speed, Flow, Temperature and Torwue are identical with 180F7020 and 180F7021

Eciency

Eciency at max. speed at 60 barg (871 psig) % 93.7 92.4

Technical specications

Media temperature

Filtration requirements (nominal)

Weight (dry) vertical/horizontal

Weight (operation with water) vertical/
horizontal

Noise

Sound pressure level L

Footprint

Footprint (vertical position)

Footprint (horizontal position)

Torque data

Max. allowable working torque

Max. starting torque (stick/slip)

Motor data

Nominal speed rpm 985 985

Rated current at 400V A 37 37

Motor size

Frame size

Rated motor torque at nominal speed

Rated motor ambient temperature

Motor insulation Class B B

Motor degrees of protection IP 55 55

5)

°C 2-35 2-35

°F 36-95 36-95

6)

3 micron melt-blown

kg 441/463 441/463

lb 972/1021 972/1021

kg 470/471 470/471

lb 1036/1038 1036/1038

2)

PA

1 m

3)

dB(A) 83 86

m² 0.44 0.44

foot² 4.71 4.71

3)

m² 0.76 0.76

foot² 8.14 8.14

Nm 170 177

lbf-ft 125 130.5

Nm 180 180

lbf-ft 132 132

kW 18.5 18.5

HP 30.0 30.0

IEC 200 L 200 L

Poles 6 6

Nm 177 177

lbf-ft 130. 5 130.5

4)

°C 40 40

°F 104 104

2)

A-weighted sound pressure level at 1 m from the ERD
unit surfaces (reference box) acc. to EN ISO 20361
section 6.2. The noise measurement are performed
acc. to EN ISO 3744:2010 on an ERD with motor
(motor pump unit) from min. to max. pressure and

6)

Please see section 7.4 Filtration

7)

Typical eciency for pressure exchanger, ..
booster pump, electrical motor and VFD at 3
barg dierential pressure after a system has ...
been commissioned and run in.

speed.

3

Area covered with recommended IE3 motor

congurations (excl. of space to service the ERD)

4)

For higher temperature, contact Danfoss.

5)

Dependent on NaCI concentation.

6

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

)

Data sheet | iSave 50 and iSave 70

4.3 iSave with NEMA motor

iSave size iSave 50 iSave 70

Code number (vertical) 180U0062 180U0064

Code number (horizontal) 180U0003 180U0005

Pressure, Speed, Flow, Temperatue and Torque are identical with 180F7020 180F7021

Eciency

Eciency at max. speed at 60 barg (871 psig)

Technical specications

Media temperature

Filtration requirements (nominal)

Weight (dry) vertical/horizontal

Weight (operation with water) vertical/
horizontal

Noise

Sound pressure level L

Footprint

Footprint (vertical position)

Footprint (horizontal position)

Torque data

Max. allowable working torque

Max. starting torque (stick/slip)

Motor data

Nominal speed rpm 118 0 118 0

Rated current at 400V A 36.2 36.2

Motor size

Frame size

Rated motor torque at nominal speed

Rated motor ambient temperature

Motor insulation Class B B

Motor degrees of protection IP 55 55

2)

A-weighted sound pressure level at 1 m from the ERD
unit surfaces (reference box) acc. to EN ISO 20361
section 6.2. The noise measurement are performed
acc. to EN ISO 3744:2010 on an ERD with motor
(motor pump unit) from min. to max. pressure and
speed.

3

Area covered with recommended IE3 motor

congurations (excl. of space to service the ERD)

4)

For higher temperature, contact Danfoss.

5)

Dependent on NaCI concentation.

7)

% 93.7 92.4

5

)

6)

°C 2-35 2-35

°F 36-95 36-95

3 micron melt-blown

kg 484/506 484/506

lb 10 67/1116 10 67/1116

kg 513/535 513/535

lb 1131/1179 1131/117 9

2)

PA

1 m

3)

dB(A) 83 86

m² 0.44 0.44

foot² 4.71 4.71

3)

m² 0.76 0.76

foot² 8.14 8.14

Nm 170 177

lbf-ft 125 130.5

Nm 180 180

lbf-ft 132 132

kW 22.5 22.5

HP 30.0 30.0

NEMA 324/6T 324/6T

Poles 6 6

Nm 179 179

lbf-ft 132 132

4)

°C 40 40

°F 104 104

6)

Please see section 7.4 Filtration

7)

Typical eciency for pressure exchanger, ..
booster pump, electrical motor and VFD at 3
barg dierential pressure after a system has ...
been commissioned and run in.

)

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

7

Data sheet | iSave 50 and iSave 70

0

10

20

30

40

50

60

525 650

Flow [GPM]

Flow [m

3

/h]

Motor speed [rpm]

Flow curve iSave50®

5 bar

2

bar

220

176

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

625 875

Flow [GPM]

Flow [m

3

/h]

Motor speed [rpm]

Flow curve iSave70®

2

bar

5 bar

220

308

5. Performance curves 5.1 Flow at dierent rpm

The diagram shows that the HP ow can be
changed by changing the rotation speed of the
iSave. The ow/rpm ratio is constant, the
required ow is obtainable by changing the
rotation speed to a required value.

5.2 iSave 50 ow curves

For accurate data and advise, please contact
Danfoss High Pressure Pumps.

The iSave is delivered with a 3.1 performance
certicate according to EN10204.

5.3 iSave 70 ow curves

8

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

5.4 Torque curve for iSave 50 and iSave 70

Below curve illustrates typical values.

Torque [Nm]

200

180

160

140

120

100

80

60

40

Torque on iSave50 and iSave70

Starting torque

delta-P: 5 bar

delta-P: 4 bar

delta-P: 3 bar

delta-P: 2 bar

delta-P: 1 bar

20

0

5.5 Mixing curve

525 645 765 875

Motor speed [rpm]

Volumetric mixing versus flushing

14,0

12,0

10,0

8,0

6,0

Volumetric mixing [%]

4,0

2,0

0,0

-10 -5 0 5 10

Flush ratio (larger than 0 means overflush) [%]

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

9

Data sheet | iSave 50 and iSave 70

6. Temperature and
corrosion

6.1 Operation

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 iSave is made of
Super Duplex 1.4410/UNS 32 750 or Duplex

1.4462/UNS 32803.

º

80

C

Duplex

70

60

50

316L

40

30

20

100

1000

160 1600

Always ush the iSave with fresh water at
operation stop in order to minimize the risk of
crevice corrosion.

Super Duplex

-

10 000

16000

100 000

160000

CI
ppm

NaCI
ppm

7. Installation

7.1 Operation and mounting 7.2 Horizontal mount

The iSave 50 and iSave 70 can be mounted
horizontally and vertically. When mounted
vertically, the electric motor must be placed at
the top of the iSave

The iSave is delivered with a standard port
orientation. The port orientation can be changed
by the customer by rotating the combined iSave
and bell housing around the center of the motor
shaft.

10

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

See example below on how to mount the pump
and connect it to an electrical motor.

A: Flexible coupling
B: Bell housing
C: Motor shaft

7.3 Connection to inlet or discharge ports:

• When using hard piping, it is important to
follow the Guideline 180R9367 - Pipe
connection.

• When using exible hoses, it is recommened
to use Hose Whip Restraint. Also follow the
guideline 180R9084 - Right and Wrong Hose
assembly.

Note: Any axial and radial load on the shaft
must be avoided.

min. 3 - 5 mm air space

A B C

7.4 Filtration

High quality water extends the service life of the
whole system.
Water to the iSave must be ltered to 3 μm
nominal, using melt-blown depth lter with
good end sealings. Consult Danfoss for correct
choice of lter.

It is important with selection of a proper lter
and lter housing to ensure good cartridge end
sealing.
If there is a high risk of water by-pass it is
recommended to use a second stage lter
solution.

7.5 Noise

Since the iSave is mounted on a bell housing and
electric motor, the noise level should be
determined for a complete system. To minimize
vibrations and noise throughout the system, it is
improtant that a horizontal iSave unit is mounted
correctly on a frame with dampeners.

Rigid designs with metal pipes cause vibration
and noise. It is therefore recommended to use
high-pressure exible hoses between the hard
piping in the RO-plant and the iSave or to used
multiple connections with Victaulic clamps
where possible.

The noise level is inuenced by:
Speed:

• High rpm makes more uid/structure-borne
pulsations/vibrations than low rpm due to
higher frequency.

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

As the various lters on the market dier greatly,
Danfoss High Pressure Pumps recommends
using cartridges with consistent, reliable
performance and high eciency and where
bres are blown continuously onto a central
support core. High Pressure Pumps does not
recommend cartridges requiring any type of
binders or resins.

Filters can be purchased from Danfoss
High Pressure Pumps. For more information on
the importance of proper ltration, please
consult our publication “Filtration” (code number
521B1009), which also will provide you with an
explanation of ltration denitions and a
guidance on how to select the right lter.

Pressure:

• High pressure makes more noise than low
pressure.

Mounting:

• Rigid mounting makes more noise than
exible mounting due to structure-borne
vibrations.

Connections to iSave:

• Pipes connected directly to the iSave make
more noise than exible hoses due to
structure-borne vibrations.

• Variable frequency drives (VFD):

Motors regulated by VFDs can increase noise
level if the VFD does not have the right
settings.

11

Data sheet | iSave 50 and iSave 70

7.5 RO systems with an iSave

VFD

22

M

4

2

26

Media filter

A

B C

Filter
3 micron
nominel

PI

Fresh water

permeate flush

Filter

10 micron

absolut

PI

F

*

12

PI

PS

21

24

19

*

Second stage filter: If recommended housing des ign and cartridges are not used, a second stage filt er is required

3

LP in

PI

PS

F

1

HP out

11

M

4

26

iSave

HP in

M

VFD

23 23

25

18

25

18

HP out

HP in

M

VFD

VFD

5

PI

PS

13

14

PS

PI

6

7

20

F

22

Full flow

cleaning/CIP

1011

PI

15

17

Permeate

F

Flowmeter

8

9

16

28

CIP

27

Drain

Explanation of P&ID setup

D. Inlet ow control and mixing:
A. Inlet lter:
Place inlet lters on LP string in front of the
iSave (11). Please see Guide line 521B1009 on
Filtration.

To balance LP ow up against HP ow on the

iSave and control mixing, place a

owmeter on low-pressure inlet (12) or low

pressure outlet (20) of the iSave.
If recommended housing design and
cartridges are not used, a second stage
lter is required, see above (*).
Thoroughly clean pipes and ush system

prior to start-up.

E. Outlet pressure control:

In order to control the inlet pressure ne eded a

back pressure valve (15) must be installed in

the common outlet pipe from the iSaves. The

valve should be designed to control ow.
B. Inlet pressure:
Must assure that iSave is running according to
specications. Refer to iSave data sheet.

It is recommended to use a manual valve with

lock function or an automatic controlled

valve.
Required: Must assure min. pressure to avoid
cavitation.
Recommended: Must assure max. pressure to
avoid hydraulic and mechanical overload.
(13) used for iSave 21 and iSave 40.
(24) used for iSave 50 and iSave 70.

F. Variable speed and overload protection:

Install a VFD to control the speed of the iSave

and protect it against mechanical overload.
See instruction 180R9372 for guidance of VFD
settings.

C. Piping and hoses:
Dimension the piping to obtain minimum

G. LP discharge ow control:

See “E”.
pressure loss (large ow, minimum pipe
length, minimum number of bends/
connections and ttings to prevent pressure
loss and ow turbulence). Use exible hoses
to minimize vibrations and noise. Please
consult the Danfoss Hoses and Hose Fittings

H. Air venting:

Install an air bleed valve (8) on the highest

point of the high-pressure piping to ensure

the air is purged from the system before

startup.
data sheet (521B0909 ) and Right and wrong
Hose assembly (180R9084) for guidance.

12

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

I. Pressure relief (high pressure):
The pressure relief valve (6) protects the whole

system against pressure overload and relieves
the water if the pressure exceeds the maxi­mum set pressure. If the high-pressure pump
is a positive displacement pump, the pump
can built up a very high pressure that will
exceed mechanical strength of the membrane
housing, pipes and other accessories. When
using Danfoss APP pumps with Danfoss VCM
check valves, it is recommended to place a
pressure relief valve or pressure safety valve as
illustrated. In case the Danfoss check valves
are not used, the valve must be placed
between pump and check valve (See
180R9371, Design Guide Pressure saftey valve
in seawater RO sytem for more details).

J. Pressure relief (low pressure):
The pressure relief valve or pressure safety

valve (19) protects the low-pressure pipes
against pressure overload and relieves the
water if the pressure exceeds the maximum
allowable pressure.

For a more eleborate description of the P&ID
setup, please consult the Danfoss Design Guide
Piping & Instrumentation Diagram (P&ID)
(180R9370) or contact Danfoss.

The iSave 50 and iSave 70 can be mounted in
parallel. For more information, please see
“Design Guide Parallel-coupled APP and iSave”

-180R9354 or contact Danfoss.

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

13

Data sheet | iSave 50 and iSave 70

8. Dimensions and
connections

8.1 iSave 50-70
without electric motor

14

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

8.2 iSave 50-70 with with IE3 motor 18.5 kW
on base frame vertical_front mounted

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

15

Data sheet | iSave 50 and iSave 70

8.3 iSave 50-70 with with IE3 motor 18.5 kW
on base frame vertical_back mounted

16

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

8.4 iSave 50-70
with with IE3 motor 18.5 kW
on base frame horizontal

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

17

Data sheet | iSave 50 and iSave 70

8.4 iSave 50-70 with NEMA motor 30 HP
on base frame vertical - front mounted

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

18

Data sheet | iSave 50 and iSave 70

8.5 iSave 50-70 with NEMA motor 30 HP
on base frame vertical - back mounted

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

19

Data sheet | iSave 50 and iSave 70

8.5 iSave 50-70
with NEMA motor 30 HP
on base frame horizontal

20

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

Data sheet | iSave 50 and iSave 70

9. Service 9.3 Maintenance

9.1 Warranty

The Danfoss iSave is designed for long operation,
low maintenance and reduced lifecycle costs.

Periodic inspections are required to ensure worn
parts (if any), are replaced in due time. Opera-

tional conditions such as water quality should be
Provided that the iSave has been running
according to the Danfoss specications, Danfoss
guarantees one year service-free operation,

taken into consideration when determining the

frequency of the inspections. Danfoss recom-

mends yearly inspections.
however, max. 18 months from date of
production.

It is recommended to order the purpose-

designed tool kit.

9.2 Operational conditions of concern

Particular attention should be paid to the
following factors to avoid increased wear and
spare parts costs:

9.4 Repair assistance

In case of irregular function of the Danfoss RO

components, please contact Danfoss High

Pressure Pumps.

- Insucient ltration

- Insucient bleeding and venting

- Running at speeds outside specicat
tions

- Wrong direction of rotation

- Insu cient ushing or periods o f standstill with
sea water inside the iSave.

10. Accessories

Description Type Code no.

11. Useful documents

3” Inlet hose kit - 2 m (79”) 6 barg (87 psig) 3” Victaulic, style 77 180Z0144

3” Outlet hose - 1 m (39.4”) 80 barg (1160 psig) 3” Victaulic, style 77 180Z0611

3” Outlet hose - 1.79 m (70.0”) 80 barg (1160 psig) 3” Victaulic, style 77 180Z0612

Coupling iSave 50 - iSave 70 Softex 55H7-32H7 180Z4003

Base plate horizontal IEC200/NEMA324TC 180Z4007

Base plate vertical IEC200/NEMA324TC 180Z4025

Literature number Description

180R9213 Start and stop of the SWRO with iSave

180 R9214 Membrane cleaning of the RO system with the iSave

180R9354 Parallel coupled APP and iSave

180R9367 Pipe connections

180R9371 Pressure safety valve in the SWRO system

180R9372 APP and iSave overload protection

180R9370 Review sheet P&ID

521B1009 Filtration

iSave selection tool (hpp.danfoss.com)

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 04.2021

21

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) | 2021.04

AI264763692435en-000901 | Data sheet iSave 50-70 | UK | 22