SERVI GROUP 757869 User manual

PULSATION DAMPER
PRC NOISEKILLER
Pulsation dampers reduce the pump pulsations in the
system, causing substantial reduction of noise levels,
especially on all kinds of vessels (ships and rigs). In ad-
dition, they work well when installed in central hydraulic
systems in factories.
Servi offers three models with different operating pa-
rameters, the most common is the Noisekiller, which is
a standardized, maintenance-free solution suitable for
pumps with frequencies > 100Hz. Must be installed very
close to the pump.
D3590-A2-2016
SERVI GROUP
[email protected]
www.servicatalogue.com
TABLE OF CONTENTS
1. Function 2
2. Typical areas of use 2
3. Installation 2
4. Models 3
5. Codes 4
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1. FUNCTION
D3590-A2-2016
PAGE 2
SERVI GROUP
[email protected]
www.servicatalogue.com
Servi PRC NOISEKILLER reactive pulsation dampener eliminates the effects from damaging pulsations and vibrations
in hydraulic systems. Pump pulsations cause noise, which is a serious environment problem in most vessels and many
facilities.
In addition, pump pulsations cause damage in the form of wear on the hydraulic system components and sealing
systems. Servi PRC pulsation damper greatly reduces noise and prolongs the service life of the components in the
hydraulic system.
The Servi PRC is suitable for pump frequencies of 100Hz and above, and since it has no pre-charge or cushioning
element, it does not require any maintenance.
2. TYPICAL AREAS OF USE
The Servi PRC has shown to have the best sound reduction effect on vessels (ships and rigs) with hydraulics working
continuously or at least most of the time. The typical hydraulic whine spread through the metal construction in decks
and bulkheads will be greatly reduced.
The Servi PRC range of Noisekillers have been developed to fit most hydraulic systems, old or new and can be installed
in any orientation.
The Noisekiller must be installed on the pressure side of the pump. A hose is recommended between the pump and
the Noisekiller. If this is impossible, due to the size of the hose, the Noisekiller can be connected directly to the pump. If
this is the case, it is very important that the Servi PRC is installed on the same flexible mounting as the pump.
The full flow of the pump must go through the Noisekiller in the flow direction of the arrow on the unit. The fluid can flow
both ways, but the damping effect is best in the main direction.
To calculate the correct, maximum distance from pump to PRC, use the following formula:
160/pump frequency = distance in meters
Example: 7 piston pumps, 1450 RPM, = 7*1450/60 = 169 Hz
160/169 = 0,94 meter
If the Noisekiller is further away, the result may be reduced
or no damping, due to parallel oscillation.
3. INSTALLATION
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D3590-A2-2016
PAGE 3
SERVI GROUP
[email protected]
www.servicatalogue.com
4. MODELS
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2. CODES
SERVI GROUP
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www.servicatalogue.com
Ordering Code PRC - 300 - 140 - 004 - AR - 240
Pulsation Reduction Carbon steel
Working pressure (bar)
Internal diameter (mm)
Approx. internal volume (L)
Connection
AR = G1’’
AT = G 1 1/2’’
AU = G 2’’
DN = 1 1/4’’
DR = 2’’ SAE 6000 psi flange
Connections are identical at both ends.
Flange combined with thread is possible. Example DR+AT
Maximum Flow (L/min)
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