In-Line Diffuser silencers

In-Line Diffuser Silencers silencers for steam, process gas and air duties

In-Line Diffuser Silencer Get a quotation Frequently Asked Questions

Control and pressure regulating valves are often installed with a high pressure drop across their elements. This high pressure drop can often lead to noise levels that are too high for nearby workers, or result in disturbance of local residences.

Flo-Dyne's diffuser insert silencer can offer a simple and effective way of reducing the noise from such valves without impacting on the flow capacity of the valve, or the size of the downstream piping, such that in many cases external acoustic cladding of the piping can be avoided.

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Our diffuser silencer works by sharing the available pressure drop between the valve and the diffuser in a way that optimises the flow capacity, pressure loss and noise generation.

We can choose the correct hole sizing and spacing will enable the optimum noise reduction and pressure drop. as has been proven in thousands of silencer installations since our business began over 35 years ago.

We will manufacture a casing for the silencer to either a pressure vessel code such as ASME VIII, or a piping code such as ASME B31.3 so that we installed the equipment becomes part of the piping.

Where space is restricted, or where special concerns arise we will examine the flow through our diffuser using Computerised Fluid Dynamics (CFD), which enable us to check the flow characteristics, flow impingements, as well as confirming the pressure loss, thereby delivering a low cost, low noise solution that avoids the expense of control valves with quiet trims, or the problems associated with metallic diffusing elements.

Our diffuser silencers have no replaceable parts, there is zero maintenance and they are a true a fit and forget solution.

Get a quotation Frequently Asked Questions

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Flo-Dyne Controls (UK) Ltd

Flo-Dyne Place, Asheridge Road, Chesham, Bucks, HP5 2PT, UK
Tel: +44 (0) 1494 770088
Fax: +44 (0) 1494 770099
Email @

Contact us from: UK, Europe, Russia, Africa, North America, Central and South America

Flo-Dyne Controls (India) Pvt Ltd

2501, G-Square Business Park, Plot 25&26, Sector 30, Vashi, Navi Mumbai, India
Tel: +91 77-384-97-300
Email @

Contact us from: India, Asia, Middle East, China, Indonesia, Australasia, and New Zealand