
The AirTAC Airtac PAL Plastic Silencer PAL03D 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.
The PAL03D screws onto a 3/8in PT exhaust port and breaks up the pressure pulse that leaves a valve as a sharp crack of escaping air. Inside a POM top cover and body, a polyethylene-fibre element disperses the pulse and cuts noise by 25 dB at 0.5 MPa - the quieter of the two figures in the AirTAC silencer range, and a full 12 dB better than the sintered-brass series.
The D suffix is a colour option only: this SKU arrives with a black top cover and body instead of natural POM, which suits machines where grey-blue fittings would look mismatched or where the cover sits in view behind a guard window. Performance, threads and dimensions are identical to the standard PAL03.
| Model | Airtac PAL Plastic Silencer PAL03D |
|---|---|
| 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.
| 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. |
Operators stand beside the valve manifold of a case erector all shift; a PAL03D on each 3/8in exhaust drops the repeated blast to a muted hiss.
A bench-top test press exhausting beside a quiet lab benefits most from the 25 dB resin element, which keeps conversation and measurements undisturbed.
Bringing a filling line under a workplace noise limit often starts at the exhausts; swapping bare 3/8in ports for PAL03D silencers is the fastest win.
Stay inside the PAL ladder: 01 (1/8in) sits below this model and 04 (1/2in) above it. Stepping down to PAL02D trades some exhaust capacity for a smaller part on a lighter valve; stepping up to PAL04D gives a 1/2in port more open area so the return stroke is not throttled by the muffler itself. Whichever you pick, size to the valve's exhaust port rather than a size down - an undersized silencer slows cylinder retraction even while it quiets the joint.
If this exhaust point will be knocked by trolleys, splashed with swarf or run near a heat source, the sintered-brass BSL03 or adjustable BESL03 (13 dB) survives abuse the resin body may not. Choose PAL03D where noise is the priority and the environment is clean.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The thread is 3/8in PT. Like every PAL-series silencer it achieves a 25 dB noise reduction at 0.5 MPa using a polyethylene-fibre element in a POM body, and the D suffix changes only the colour to black.
No. The PAL body is POM resin, which is lighter and less bulky than a sintered-brass BSL of the same thread, yet it delivers 25 dB against the brass series' 13 dB. Match the 3/8in PT thread to the valve's exhaust port as-is; do not fit a smaller thread with a reducer just because the body is compact, or you will throttle the exhaust and slow the cylinder.
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