Airtac PAL Plastic Silencer PAL02
The AirTAC Airtac PAL Plastic Silencer PAL02 is a genuine plastic silencer that cuts exhaust noise by 25 dB at 0.5 MPa using a polyethylene-fibre filter in a POM body.
- TypePlastic silencer
- SeriesPAL
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Noise reduction25 dB
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PAL Plastic Silencer PAL02
The PAL02 screws onto the exhaust port of a solenoid valve or air fitting and turns the sharp crack of venting air into a quiet hiss. Inside the POM body, a polyethylene-fibre element breaks up the pressure pulse, and at the catalogue test point of 0.5 MPa it removes 25 dB - the deeper reduction AirTAC publishes for this resin family, against 13 dB for the sintered-brass BSL range. The thread here is 1/4in PT.
This series is the all-resin option: POM top cover and body with the fibre element inside, so the part weighs almost nothing and will not corrode in damp shops or wash-down areas. Note that the PAL ladder starts at 1/8in - there is no M5 size in this series - and a -D suffix version with a black top cover and body is available if you want the silencer to disappear against dark machine panels.
Airtac PAL Plastic Silencer PAL02 Technical Specifications
| Model | Airtac PAL Plastic Silencer PAL02 |
|---|---|
| Type | Plastic silencer |
| Series | PAL |
| Noise reduction | 25 dB at 0.5 MPa |
| Element | Polyethylene-fibre filter in a pom body |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PAL Plastic Silencer PAL02
| PAL | Plastic silencer. |
|---|---|
| 01 / 02 / 03 / 04 | Thread: 1/8", 1/4", 3/8", 1/2". M5 where the series offers it. |
| D | Black. Blank = grey. |
Choosing a Silencer
- check Sintered-brass types (BSL / BSLM / BESL) give 13 dB and take rough treatment.
- check Resin types (PAL / PALM / PPA) give 25 dB and weigh far less.
- check PPA plugs straight into a tube instead of a thread, and is copper-free for sensitive processes.
- check BESL adds an adjustable throttle, so it silences AND sets exhaust speed in one part.
- check An undersized or clogged silencer shows up as a slow return stroke - size it to the valve's exhaust port.
Where the Airtac PAL Plastic Silencer PAL02 Is Used
Cartoning machine valve bank
On a cartoner or case packer the solenoid valves cycle thousands of times a shift right where operators stand. A PAL02 on each 1/4in exhaust port strips 25 dB from every vent, taking the constant cracking out of the working day.
University pneumatic training rigs
Teaching benches in engineering labs run small valves on short cycles for hours of student experiments. The all-POM PAL02 keeps the bench quiet, cannot rust between terms, and a black -D variant blends into the rig frame.
Workshop press under a noise limit
A small pneumatic press or clamp in a shared workshop often pushes a site past its workplace noise threshold. Fitting PAL02 to the 1/4in exhausts is the cheapest first step toward compliance before anyone re-engineers the machine.
Is the Airtac PAL Plastic Silencer PAL02 the Right Part?
Pick resin over sintered brass when noise is the priority and the part will not be knocked or run in hot, oily air: PAL holds 25 dB at 0.5 MPa where BSL manages 13 dB, but metal tolerates impact and rougher environments better. For a 1/8in exhaust port step down to PAL01; for 3/8in step up to PAL03. Each step up buys more acoustic and flow capacity at the cost of a larger body, and an undersized silencer chokes the exhaust and slows the cylinder return stroke.
If you also need to set exhaust speed, the BESL throttling silencer adds an adjustable needle to a sintered element in the same threaded format. Whichever you choose, match the silencer to the valve's exhaust port size rather than fitting a smaller part.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
- ✓ Noise target: 13 dB metal or 25 dB resin
Airtac PAL Plastic Silencer PAL02 FAQ
The PAL02 is a 1/4in PT threaded plastic silencer with a POM top cover and body and a polyethylene-fibre element. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it tolerates negative pressure to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. Noise reduction is 25 dB measured at 0.5 MPa.
The PT thread is tapered, so two or three turns of PTFE tape gives a tight seal without locking paste on a plastic body. For a 1/8in exhaust port order PAL01 instead of stepping the PAL02 up with a reducer, and remember the PAL series has no M5 option - the PALM mini plastic silencer is the resin choice for those smallest ports.
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Covers non-human-caused product damage.
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Standard parts are processed and dispatched in 3-5 business days.
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