Vent Silencers

Steam exhausts
Air vents
Process Gases
Relief valves
Safety valves
Bypass valves
Blow down vents
High temp vents

Diffuser Silencers

Atmospheric vents
Control valves
Pressure let down
Steam Vents & Process Vents
Pressure regulators

In-Line Silencers

Control valves
Orifice plates
Gas ejectors
Steam ejectors
Gas compressors
Axial compressors
Centifugal compressors
Roots blowers and
Multi-lobe blowers and exhausters

Surge Tanks

Drinking Water
Raw water
Foul Water

Ancillary Surge Controls & Equipment

Air Compressors
Electrical Controls Control Panels
Level Controls

Flo-Dyne Installation & Commissioning Services

Pipeline Surge Analysis & Reporting

Refurbishment and repair

Surge Vessels
Compressor systems
Control panels

Pulsation Dampeners

Roots Blowers
Multi-Lobe Blowers
Recip compressor
Recip pumps Suction Lines
Discharge Lines

Acoustic Filters

Hydraulic pumps
Refrigerant Compressors
Air Conditioning Compressors

General Information

Quality Registration to

Surge Tanks


Vent Silencers


Pulsation Dampeners


In-line Silencers

Blower Silencers





Many high speed multi-plunger pumps create tones and pulses that can be harmful to the piping system and be extremely annoying.

Typical applications include multi-plunger hydraulic pumps, gear pumps and refrigeration compressors.

With the Flo-Dyne acoustic filter, it is possible to completely eliminate these tones and pulses by the application of our simple low pass acoustic filter design.

Using a multiple chamber design with connecting choke tubes, we are able to provide proven acoustic attenuation that will virtually eliminate tones and pulses from high speed positive displacement pumps and compressors

Treatment of noise created by high pressure multi-plunger hydraulic pumps, is achieved
by the application of a low pass design acoustic filter,
acoustic filterwhich is designed to attenuate the dominant frequency and the most significant harmonics.

Each acoustic filter can be built to be welded directly into the piping with connecting nozzles supplied bevelled and ready for welding to the pipe system, or each unit may be supplied with couplings or flanges to match the mating connection.

The multi-chambered acoustic filter is designed to filter or attenuate the predominate frequency and significant harmonics of the pump. Using computer simulation response curves, Flo-Dyne engineers can
check each acoustic filter design for each application.


Contact us now with your requirements.

UK office:
Tel: +44 (0) 1494 770088
Fax: +44 (0) 1494 770099
Email: sales@flo-dyne.net

India office:
Tel: +91 77 384 97 300
Email: sales-india@flo-dyne.net