Danfoss MPE 70, Operating Manual

Page: 11 / 64

Operating guide |MPE 70
11
180R9426 | AQ367027814446en-000801 | IOM MPE 70 | 08.2022
5.1 Design details 5. Technical data and
design details
5.2 Sound level of the MPE 70
The A-weighted sound pressure level @ 1m,
L
PA, 1M
is for the MPE 70 including the MPE 70
motor.
Measurement are according to EN ISO
3744:2010. The test is made under following
conditions:
1. MPE 70 and electrical motor
mounted together.
2. LP In pressure is 2 barg (29 psig)
3. Rotation speed is max. rpm
4. System pressure is max. allowable
working pressure.
Influences
The structural noise may affect the noise
level from the MPE 70 system. The sound
level is therefor only given for the MPE 70 in-
cluding the MPE 70 motor. The Sound pres-
sure level can be found in data sheet MPE 70
Pressurre exchanger in appendix 11.1.Struc-
tural noise may affect the noise level.
Use multiple flexible Victaulic® couplings on
the hard piping.
The noise level is influenced by:
• The speed of the MPE 70. High speed
creates more noise than low speed.
• Higher pressure provides higher sound
level. For sound levels in specific duty
point please contact Danfoss High pres-
sure Pumps.
1: 3” Victaulic connections
2: Shaft
3: Low pressure shaft seal
4: Port flange
5: Valve plate
6: Cylinder barrel
7: Port plate (brine)
8: Port plate (feed)
9: Motor flange