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Pulsation Dampeners

Dampener Process

Type of Pulsation

PULSCO pulsation dampeners can handle any gas or liquid at any operating pressure. Each pulsation dampener is specifically designed to match system requirements and to decrease pulsations that vibrate and destroy piping.


PULSCO provides Dampeners using reactive methodology to reduce pressure pulsations. We are also able to provide hybrid designs of both reactive and absorptive strategies to attenuate additional broadband noise.


PULSCO’s experience and modeling tools allow accurate predictions of both the generated pressure pulse/noise and the amount of attenuation to precisely size the dampener to a given amount of pressure pulsation.

Cost of Ownership

With no maintenance required for our Dampeners, the only cost of ownership is the initial cost.

Gas and Liquid Pulsation Dampener

PULSCO was the first to develop gas and liquid pulsation dampener control equipment that utilizes acoustic theory and techniques to reduce noise and vibration.

For over 50 years, PULSCO has used state-of-the-art design methods to thoroughly analyze compressor and piping systems to protect our customers’ assets, keep them in business and optimize their performance.

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Gas Pulsation Dampeners
High Performance

Output pressure pulsations are reduced to less than 8% of input pulsations. PULSCO’s Gas Pulsation Dampener typically carries a guarantee for residual pulsations of 1% line pressure.

Wide Frequency Range

Designs are available for a wide range of operating frequency. Performance improves with increasing frequency and therefore higher harmonics are typically dampened to a greater degree than the fundamental frequency.

Pressure Drop

Typical pressure drops are 1% of line pressure, but designs can be adjusted to other values. The lower the pressure drop, the larger the dampener must be to achieve the same level performance. A pressure drop lower than 1/2 percent of the line pressure is not recommended.

Liquid Pulsation Dampener
High Pulsation Reduction

The LPT provides greater than 90% reduction in pulse amplitude, regardless of operating pressure, at frequencies of 100Hz and higher under typical operating conditions resulting in increased system efficiency.

High Noise Level Reduction

Pipe radiated noise is reduced by 20dB or more. The LPT provides a quieter environment for hydraulic system operations.

Improved Particle Filtration

Pulsation reductions provide for a more stable filter media and result in particle filtration efficiency.

Aerospace Dampeners

Typically used for high pressure and speeds.

Several of our designs have over 35 years of operational experience.

Reactive dampeners are designed to eliminate pulsations within the piping system generated by compressors and pumps.

Pulsation control reduces the pressure amplitudes and avoids resonance of the pipe-work.

Best for Hydraulics

Reactive dampeners are your best bet for hydraulic systems if the pressure pulsations are over 100 Hz

No Tuning Required

Dampeners are designed and supplied to be installed directly in to the pipeline and have no moving parts and do not require a gas precharge.

No Maintenance Needed to Maintain Performance

The dampeners have zero moving parts and do not require spare parts. Maintenance and tuning, unlike pressure charged dampeners, is never required.

Used strictly for compressors, absorptive type dampeners are designed to reduce the noise at the inlet and outlet of high speed dynamic compressors.

These compressors produce a certain noise signature based on their operation, but can also generate broadband noise from gaseous flows and PULSCO dampeners can be engineered to handle this frequency spectrum with a minimum of pressure drop.

Better Suited for Broadband Noise

For compressors with discrete frequencies and additional broadband noise we recommend using a hybrid absorptive and reactive method.

Low Cost

Pipe and fitting repair or replacement in the hydraulic system is virtually eliminated due to reduced pulsation and vibration in the piping system.

Liquid Pulsation Dampener Performance Graph



The dampeners can be sized to handle a wide range of pulsation frequencies and flow rates. Diameter and length, as well as the inlet and outlet configuration can be varied to meet specific installation situations.


Our dampeners can be designed using a variety of materials. The thickness is designed to meet temperature and pressure requirements. They can be designed to meet a variety of industrial codes including; PED, ASME, API, and ANSI.

Pulsation Dampeners with Green Background

Get in touch with us today regarding pulsation dampeners.

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