Compressor Silencers

We offer a quality range of Centrifugal Compressor Silencer. Centrifugal Compressor Silencers are noisy and require noise control. Just as a pump raises the pressure on a liquid, a compressor raises air or gas pressure. Centrifugal Compressor Silencer noise is produced primarily by blade-tip turbulence which is a function of horse power, speed, discharge pressure, piping velocities, number of stages of compression, type and number of blades etc. The high speed rotation of vanes or impellers generates noise which primarily consists of discrete tones interdisperse over a broad band frequency spectrum of lesser intensity. The maximum amplitude occurs at the blade passing frequency and its second harmonic. The high frequency noise generated is in the audible range and requires treatment for achieving noise control. The importance of proper sizing of intake and discharge piping cannot be overemphasized. Both intake and discharge silencing is normally required. These silencers are absorptive type silencers which are essentially a high frequency, low pressure drop attenuator. It depends on sound absorbing material to dissipate the acoustical energy and are usually straight thru designs. All silencers should be coupled as close as possible to the compressor to prevent excessive pipe radiated noise. Silencer selection: The Centrifugal Compressor Silencers are normally selected on the basis of maximum allowable pressure drop at rated flow and the silencing criteria. These silencers are usually sized for around 5000 to 5500 FPM velocity but not exceeding 7500 FPM velocity to prevent excessive self generated noise and aerodynamic noise generation. While selecting the Centrifugal Compressor Silencer, it must be ensured that the flow area throughout the silencer is sufficient to accommodate the air flow without imposing excessive restriction. The following table indicates the maximum recommended air flow in CFM for respective silencer size in accordance with the above guidelines. Data Required: Air Flow Rate (Kg/hr or CMH)Temperature ( C)Pressure (PSIG)Maximum allowable pressure drop (mm of water)Inlet outlet line sizeExisting noise frequency spectrum (63 hz to 8 Khz)

Silencer Air Compressors

Compressor Suction Silencer can be rectangular or cylindrical in construction. The circular silencer is made of concentric annular acoustic cylinder enclosed in a robust steel casing with transition cone or dished end at both ends with inlet and outlet nozzles. The air/ gas enters the silencer and passes through the annular space between the concentric annular acoustic cylinders where the sound energy is absorbed. The straight flow path through annular acoustic cylinder ensures minimum pressure drop. Either steel, galvanized steel or stainless steel is provided for internals based on the customer s choice

Compressor silencers and inline compressors silencers are often specified for centrifugal and axial compressors which create broad spectrum noise with peaks at the blade passing frequencies. In addition many piping systems suffer from propagation of low frequency noise both within the gas stream and along the pipewall, which if not effectively attenuated can result in the acoustic performance of the silencer being compromised. The custom designed Flo-Dyne compressor inline silencer will treat these special noise problems to give a highly effective silencing solution.

Pressure Compressor Silencer

Suction silencers can be rectangular or cylindrical in construction. The circular silencer is made of concentric annular acoustic cylinder enclosed in a robust steel casing with transition cone or dished end at both ends with inlet and outlet nozzles. The air/ gas enters the silencer and passes through the annular space between the concentric annular acoustic cylinders where the sound energy is absorbed. The straight flow path through annular acoustic cylinder ensures minimum pressure drop. Either steel, galvanized steel or stainless steel is provided for internals based on the customer s choice. A discharge silencer will be similar in construction as that of suction silencer. However the silencer casing with inlet and outlet nozzle will be designed as pressure vessel.

Oil Free Air Compressor Silencer

Compressor Silencer Centrifugal compressors are noisy and require noise control. Just as a pump raises the pressure on a liquid, a compressor raises air or gas pressure. Centrifugal compressor noise is produced primarily by blade-tip turbulence which is a function of horse power, speed, discharge pressure, piping velocities, number of stages of compression, type and number of blades etc. The high speed rotation of vanes or impellers generates noise which primarily consists of discrete tones interdispersed over a broad-band frequency spectrum of lesser intensity. The maximum amplitude occurs at the blade passing frequency and its second harmonic. The high frequency noise generated is in the audible range and requires treatment for achieving noise control. The importance of proper sizing of intake and discharge piping cannot be overemphasized. Both intake and discharge silencing is normally required. These silencers are absorptive type silencers which are essentially a high frequency, low pressure drop attenuator. It depends on sound absorbing material to dissipate the acoustical energy and are usually straight thru designs. All silencers should be coupled as close as possible to the compressor to prevent excessive pipe radiated noise. SILENCER SELECTION The centrifugal compressor silencers are normally selected on the basis of maximum allowable pressure drop at rated flow and the silencing criteria. These silencers are usually sized for around 5000 to 5500 FPM velocity but not exceeding 7500 FPM velocity to prevent excessive self generated noise and aerodynamic noise generation. While selecting the centrifugal compressor silencer, it must be ensured that the flow area throughout the silencer is sufficient to accommodate the air flow without imposing excessive restriction. The following table indicates the maximum recommended air flow in CFM for respective silencer size in accordance with the above guidelines.

CP AIR COMPRESSOR SILENCER

Suction silencers can be rectangular or cylindrical in construction. The circular silencer is made of concentric annular acoustic cylinder enclosed in a robust steel casing with transition cone or dished end at both ends with inlet and outlet nozzles. The air/ gas enters the silencer and passes through the annular space between the concentric annular acoustic cylinders where the sound energy is absorbed. The straight flow path through annular acoustic cylinder ensures minimum pressure drop. Either steel, galvanized steel or stainless steel is provided for internals based on the customer s choice. A discharge silencer will be similar in construction as that of suction silencer. However the silencer casing with inlet and outlet nozzle will be designed as pressure vessel.

Compressor Silencers

Compressor Silencers

FS / PS Series: Filter Silencers for Blowers & Compressors

Compressor Suction Silencer

Compressor Suction

Compressor Silencers