Operating guide | iSave 50 - 70
10
180R9357 | AQ265943679828en-00100
2
IOM iSave 50 - 70 | 0
3
.202
3
5.
Technical data and
design review
5.1 Design details
5.2 Sound level of the iSave
The A-weighted sound pressure level @ 1m,
L
PA, 1M
is for the iSave including the iSave motor.
Measurement are according to EN ISO
3744:2010. The test is made under following
conditions:
1.
iSave and electrical motor mounted on
Danfoss base plate.
2. Baseplate is isolated from concrete ground
by rubber vibration dampers.
3.
Flexible hoses are used on high pressure
and low pressure sides of the iSave.
4.
Rotation speed is max. rpm
5. System pressure max. allowable working
pressure and a booster pressure of 3 barg.
Influences
Since the iSave is mounted on a base plate and
connected to the electromotor by a bell housing,
the noise level can only be determined for the
complete unit (system).
It is therefore important that the iSave unit is
mounted correctly on a frame with dampers
to minimise vibrations and noise.
It is also strongly recommended to use high-
pressure flexible hoses between the hard piping
in the RO plant and the iSave.
See “Hose assembly and installation” -
180R9084 in chapter10.5 and Guide line Pipe
connections 180R9367.
Alternative use multiple flexible Victaulic®
couplings on the hard piping.
Alternativamente, emplee acoplamientos Victaulic®
flexibles en la tubería rígida.
The noise level is influenced by:
•
The speed of the iSave. High speed creates
more noise than low speed.
•
Rigid mounting of the iSave baseplate
generates more noise than flexible
mounting
•
Pipe mounting directly to the iSave
increases the noise level compared to
flexible hoses.
•
Higher pressure provides higher sound
level.
5.3 Materials
All critical parts of the iSave are made of
super-duplex 1.4410/UN S32750/1.4462/
UN S32205/S31803 or the like.
Non-critical parts that are not in contact with sea
water are made of AISI 316.
The shaft to the electrical motor is sealed by
a standardised mechanical seal.
1: 3” Victaulic connections
2: Shaft
3: Low pressure shaft seal
4: Port flange
6: Valve plate
7: Cylinder drum
9: Port plate (brine)
10: Port pllate (sea water)
11: Vanes
12: Coupling
13: Intermediate flange
14: Rotor
15: Rotor element
16: Sealing plate
17: Stator
18: Motor end flange
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