What causes the noise in a hydraulic system?
What causes the noise in a hydraulic system?
Taking control of noise In any hydraulic system, the pump is the main source of pulsations and vibrations. While pump manufacturers have made noise reduction a design goal, every pump still produces some ripple – the pump manufacturers’ term for pulsations. Ripple produces the line vibrations which cause additional noise.
Why does my pressure relief valve keep chattering?
Why does a relief valve chatter? Some causes of chattering include: excessive inlet pres- sure drop; excessive backpressure; an oversized relief valve; and a relief valve that must handle widely varying flowrates. We will explain the first of these in more detail.
What can I use to cancel out noise in a hydraulic system?
Acoustic filters, which use internal reflections and resonant frequencies to cancel out noise, may also be effective. However, they must be tailored to the application and tend to be expensive.
Why does my power pump make so much noise?
Somewhat surprisingly, one factor that can contribute much to the noise level is improper use of hydraulic hose. Recent research at a large pump manufacturer showed that they could take an average of 5 dB (A) out of a standard power unit merely by changing the configuration of the hydraulic hose.
Taking control of noise In any hydraulic system, the pump is the main source of pulsations and vibrations. While pump manufacturers have made noise reduction a design goal, every pump still produces some ripple – the pump manufacturers’ term for pulsations. Ripple produces the line vibrations which cause additional noise.
Why does a relief valve chatter? Some causes of chattering include: excessive inlet pres- sure drop; excessive backpressure; an oversized relief valve; and a relief valve that must handle widely varying flowrates. We will explain the first of these in more detail.
Somewhat surprisingly, one factor that can contribute much to the noise level is improper use of hydraulic hose. Recent research at a large pump manufacturer showed that they could take an average of 5 dB (A) out of a standard power unit merely by changing the configuration of the hydraulic hose.
How to get rid of noise from a hydraulic pump?
Another method of using compliant nitrogen to deal with noise-causing pulsations is to mount an in-line nitrogen-charged noise suppressor right at the outlet of the pump. (This suppressor is described in detail in the box at right.)
