User manual
iSave 21
13
180R9221 / 521B1174 / DKCFN.PS.003.A1.02
5.1 Design details
5 Technical data and design review
5.2 Sound level of the iSave
The noise level from the iSave including the electrical motor is 86 dB (A). Measurements ac-
cording to EN ISO 20361. 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 1500 rpm
5. System pressure 60 bar and a booster pressure of 3 bar.
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 pip-
ing in the RO plant and the iSave. See “hose assembly and installation” in appendix 10.6.
Alternative use multiple flexible Victaulic® couplings on the hard piping.
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.
1: 2” Victaulic connections
2: Shaft
3: Low pressure shaft seal
4: Port flange
5: Port plate
6: Valve plate
7: Cylinder drum
8: Port flange
9: Port plate
10: Pins
11: Vanes
12: Port plate
13: Coupling
14: Adapter flange
15: Rotor
16: Stator
17: Port flange
18: Outlet flange
Summary of Contents for iSave 21
Page 5: ...User manual iSave 21 5 180R9221 521B1174 DKCFN PS 003 A1 02 1 CE Declaration of conformity...
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Page 59: ...User manual iSave 21 59 180R9221 521B1174 DKCFN PS 003 A1 02 10 4 iSave part list...
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Page 61: ...isave danfoss com iSave 21 Parts list 180R9209 DKCFN PC 003 A2 02 Parts list...
Page 66: ...Parts list iSave 21 Parts list 6 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view Vane pump...
Page 68: ...Parts list iSave 21 Parts list 8 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view iSave...
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