1/4″ M Plastic Breather Silencer Blue

Description

Technical Specifications

Model: PSU-8
Size: 1/4″
Material: Plastic
Type: Breather Silencer
Thread Type: Male
Thread Standard: 1/4″ BSP Male
Body Material: Plastic
Colour: Blue
Working Medium: Compressed Air
Frequently Asked Questions
What is a pneumatic breather silencer?
A pneumatic breather silencer, also known as an exhaust muffler, is fitted to the exhaust or vent port of pneumatic equipment. It diffuses compressed air as it is released to reduce the sharp exhaust noise produced by the system.
What thread does the ACOUPB014 use?
The AirCraft SG PSU-8 uses a 1/4″ BSP male thread. It should be connected to a compatible 1/4″ BSP female port.
Is it 1/4″ BSP or 1/4″ NPT?
It is 1/4″ BSP Male. Do not confuse it with American 1/4″ NPT pneumatic fittings.
What equipment can I use it on?
It can be used on compatible exhaust or breather ports on pneumatic valves, regulators, manifolds, cylinders and other compressed-air equipment.
Does it reduce compressor motor noise?
No. It is designed to reduce the noise produced by exhausting compressed air. It will not significantly reduce mechanical noise from a compressor pump or electric motor.
Is this an air filter?
Not in the conventional sense. Its primary function is to silence pneumatic exhaust. The breather design can help reduce contamination entering an exposed vent port, but it does not replace a proper compressed-air particulate or moisture filter.
Can it prevent dust entering a pneumatic system?
It can help minimise dust and larger debris entering through an exposed breather or exhaust opening. The AirCraft supplier specifically identifies cleaner vent points as one of its benefits.
Does a silencer restrict airflow?
All exhaust silencers introduce some resistance. PSU-type silencers are designed to provide noise reduction while maintaining relatively low back pressure. A contaminated or blocked silencer, however, can restrict exhaust flow and negatively affect pneumatic equipment performance.
What happens if the silencer becomes blocked?
A blocked silencer can create excessive back pressure. This may cause pneumatic valves or cylinders to operate more slowly or incorrectly. Inspect the silencer periodically and replace it if it becomes heavily contaminated.
Why is my pneumatic cylinder moving slowly after installing a silencer?
First check whether the silencer is dirty, clogged or incorrectly sized. Restricted exhaust airflow can slow cylinder movement. The AirCraft supplier specifically warns that a blocked silencer can affect system performance.
Can I install it directly onto a solenoid valve?
Yes, provided the valve has a compatible 1/4″ BSP female exhaust port. Pneumatic valve exhaust ports are one of the intended applications.
Does it need electricity?
No. It is a passive pneumatic component and requires no electrical power.
Does it contain moving parts?
No. The silencing effect is created by diffusing exhaust air through the internal porous element.
How do I install it?
Completely depressurise the pneumatic system first. Confirm that the port is a compatible 1/4″ BSP female connection, then carefully screw the silencer into the port without cross-threading or overtightening it.
Can I use PTFE tape?
A suitable pneumatic thread sealant or PTFE tape may be used if required by the fitting arrangement. Keep excess tape away from the end of the thread so fragments cannot enter the pneumatic system.
How often should it be replaced?
There is no fixed replacement interval. Inspect it periodically, especially in dirty, oily or dusty environments. Replace it when the element becomes clogged, damaged or creates excessive exhaust restriction.
Can it be cleaned?
Some generic PSU-type silencer manufacturers state that their porous elements can be cleaned using a suitable cleaning solvent. However, an AirCraft-specific cleaning procedure for ACOUPB014 has not been confirmed, so inspection and replacement are preferable to publishing a solvent-cleaning procedure without supplier confirmation.
What is the maximum working pressure?
The AirCraft supplier does not currently publish an exact pressure rating for SG PSU-8. Comparable PSU-series silencers specify up to 1.0 MPa / 10 BAR, but this should be treated as reference information rather than an official ACOUPB014 specification until confirmed by AirCraft.
How much noise does it reduce?
Comparable PSU-series manufacturers specify approximately 25–35 dB(A) of exhaust-noise reduction, depending on pressure and the pneumatic circuit. This has not been independently confirmed for the AirCraft SG PSU-8, so it should be treated as reference information rather than an official product claim.