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Silencers & Accessories

Shop The Hosemaster's range of pneumatic silencers and accessories for compressed air systems. Silencers fit to the exhaust ports of valves, cylinders, and air-powered equipment to reduce the noise produced when air vents to atmosphere, a meaningful difference in any high-cycle production environment. The range covers sintered bronze, plastic, and metal silencers in standard BSP thread sizes, alongside pneumatic accessories including valve components, manifold parts, and miscellaneous pneumatic hardware. Free delivery over £200 to England and Wales.

  • REF #3834

    PTFE Thread Seal Tape

    PTFE Thread Seal Tape

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  • REF #3046

    Coned Brass Sintered Bronze Silencer Male Thread BSPP & Metric

    Coned Brass Sintered Bronze Silencer Male Thread BSPP & Metric

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  • Copper Tube Cutter

    Copper Tube Cutter

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  • REF #3048

    Silencer - Stainless Steel

    Silencer - Stainless Steel

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  • REF #3040

    Silencer - Metric Push-in

    Silencer - Metric Push-in

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  • REF #3038

    Plastic Silencer

    Plastic Silencer

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  • REF #3039

    Silencer Polyethylene Male BSPP

    Silencer Polyethylene Male BSPP

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  • REF #2720

    Pressure Reducers

    Pressure Reducers

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  • Heavy Duty Pipe Cutter

    Heavy Duty Pipe Cutter

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  • REF #3047

    Sintered Bronze Silencer

    Sintered Bronze Silencer

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  • 1/4" Aluminium Swivel Connector

    1/4" Aluminium Swivel Connector

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  • REF #3050

    Silencer - Regulator

    Silencer - Regulator

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  • REF #3049

    Stainless Steel Silencers

    Stainless Steel Silencers

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    Silencer - Regulator

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How to choose pneumatic silencers and accessories

Every time a pneumatic valve or cylinder exhausts, it releases a burst of compressed air to atmosphere. Each event is brief, but in a production environment with dozens of valves cycling hundreds of times per hour, the cumulative noise is significant, and entirely preventable. Pneumatic silencers reduce it by forcing the exhausting air through a porous or baffled medium that slows the air velocity and absorbs the energy of each pulse.

Sintered bronze silencers are the most common type in industrial pneumatic systems. The sintered material has a porous matrix that distributes the exhaust flow over a wide area, absorbing the energy that would otherwise produce a sharp report. They are compact, durable, and available in standard BSP thread sizes that screw directly into the exhaust port of the valve or cylinder.

Plastic body silencers work on the same principle but are lighter and lower in cost. They suit applications where exhaust rates are moderate and the environment is not particularly harsh. For heavy-duty cycling applications, fast-acting valves, high-flow circuits, or environments where the silencer takes mechanical abuse, sintered bronze or metal-bodied silencers are the right choice.

Thread size is the critical specification. Exhaust ports on pneumatic valves are typically 1/8", 1/4", 3/8", or 1/2" BSP. The silencer thread must match the port exactly. If in doubt, measure the port or refer to the valve datasheet, most valve manufacturers publish port dimensions.

There is one maintenance point worth knowing: sintered silencers clog with oil mist and particulate over time, which increases back pressure on the valve exhaust port. Elevated back pressure slows the valve's response time and can prevent the spool from completing its stroke fully, affecting cylinder speed and force. In severe cases, it causes the valve to stick. In high-cycle or oiled-air applications, silencers should be inspected and replaced or cleaned at regular service intervals.

The accessories part of this collection covers additional pneumatic hardware, including valve accessories, manifold components, flow controls, and spare parts. For help specifying silencers for your valve types, contact our team or call 01282 604002.

Frequently Asked Questions

What is a pneumatic silencer?

A pneumatic silencer fits to the exhaust port of a valve or cylinder and reduces the noise produced as compressed air vents to atmosphere. Air exhausting through an unsilenced port produces a sharp, loud report, particularly in high-cycle applications. Silencers slow the air velocity by passing it through a porous or baffled medium, which distributes the flow and absorbs the energy of the exhaust pulse.

Where do pneumatic silencers fit?

Pneumatic silencers screw into the exhaust port of a directional control valve, cylinder, or other pneumatic device. The exhaust port is usually marked with an E or the number 3 or 5 on the valve body, depending on the valve type. On 5/2 and 5/3 valves, there are two exhaust ports, both of which can be silenced independently. The silencer thread must match the exhaust port thread size.

What thread sizes do pneumatic silencers come in?

Pneumatic silencers are available in standard BSP thread sizes to match common valve exhaust port sizes: 1/8", 1/4", 3/8", and 1/2" BSP. The correct size is determined by the exhaust port of the valve or cylinder. Check our BSP datasheet or measure the port thread with a thread gauge if you are unsure.

How much noise do pneumatic silencers reduce?

Sintered bronze silencers typically reduce exhaust noise by 10 to 20 dB in most industrial applications. The reduction is most noticeable on valves with fast cycle rates and high flow. While silencers will not eliminate exhaust noise entirely, in a production environment with multiple valves, the cumulative improvement in ambient noise level is significant.

Can a blocked silencer damage a pneumatic valve?

Yes. A clogged silencer increases back pressure on the valve exhaust port. Elevated back pressure slows the valve's response time and can prevent the spool from completing its stroke fully, affecting cylinder speed and force. In severe cases it causes the valve to stick. Silencers in high-cycle or oiled-air systems should be inspected and cleaned or replaced at regular service intervals.

What else is in the pneumatic accessories range?

In addition to silencers, this collection includes valve accessories, manifold hardware, flow controls, and spare parts for compressed air circuits. If you are looking for a specific component not immediately visible in the range, contact our team or call 01282 604002 and we will check stock availability.

Do you sell pneumatic silencers near me?

The Hosemaster delivers pneumatic silencers and accessories to all UK mainland addresses. Orders over £200 to England and Wales qualify for free delivery, with 1-2 day delivery available and same-day dispatch on most in-stock lines. Call 01282 604002 if you need help matching a silencer to your valve's exhaust port size.