Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D
The AirTAC Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D is a genuine bulkhead connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeBulkhead connector
- SeriesPMF
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- 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 PMF Female Thread Bulkhead Straight Through Fitting PMF401D
The AirTAC PMF401D is a PMF bulkhead connector in the resin one-touch range, built to carry Dia 4 mm soft nylon or polyurethane tubing through a panel or housing wall and land it on a 1/8 inch PT male thread on the far side. Push the tube into the connector until it stops and the internal chuck grips it; press the release ring and the tube frees again. This D-suffix version comes with a black body - on the PMF family the D changes the whole body colour, not just the button as it does on PC and POC.
It runs on the standard resin spec: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. The PBT body and brass stud are pre-coated with thread sealant on the 1/8 inch thread, while the locknut that clamps the fitting to the panel is M12x1 for a Dia 4 part - drill the panel hole to suit the nut, not the body.
Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D Technical Specifications
| Model | Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D |
|---|---|
| Type | Bulkhead connector |
| Series | PMF |
| Connection | Push-in one-touch |
| 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 |
| Applicable tubing | Soft nylon or polyurethane tube |
| 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 PMF Female Thread Bulkhead Straight Through Fitting PMF401D
| PMF | Bulkhead connector. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D Is Used
Control cabinet pass-through
Mount PMF401D through the wall of an electrical enclosure so Dia 4 pilot lines to a small solenoid valve stay outside the cabinet while the 1/8 inch connection sits tidy on the inside face.
Analytical instrument sampling
Feed 4 mm polyurethane sample or purge lines through the housing of a laboratory gas analyser, using the bulkhead stud as a fixed service connection that survives repeated door openings.
Vending and kiosk air circuits
Take compressed air through the back plate of a vending machine or ticket kiosk to drive a small actuator, with the black PMF401D body blending into dark painted panels.
Is the Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D the Right Part?
Dia 4 is the smallest tube size in the PMF ladder, so the only neighbour is up: PMF601 moves to Dia 6, which buys you a stiffer bore for pilot lines that run further or feed anything with a visible pressure drop. Going down does not exist in this series. On the thread side, M5 is not offered for PMF, so 1/8 inch is the entry point and PMF402 steps you to 1/4 inch when the mating port is larger.
Choose PMF over a plain male connector whenever the air path must cross a wall: the fitting bolts through the panel, keeps the tubing outside the enclosure and leaves a threaded stud inside. Remember that one-touch grip depends on an exact tube match - Dia 4 tubing only, since 5/32 inch or 4.5 mm tube will not seal reliably in the chuck.
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
Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF401D FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg, proof pressure 1.5 MPa, operating temperature -20 to +70 C. The fitting accepts Dia 4 mm soft nylon or polyurethane tube on a 1/8 inch PT male thread, with an M12x1 locknut for panel mounting. Body is black PBT with a brass stud; the thread arrives with sealant applied.
Yes - press the release ring on the nose of the connector and the stainless spring gasket and chuck let go of the tube, so circuits can be serviced by hand. For sealing through the panel, the M12x1 locknut clamps the body to the drilled hole while the pre-applied sealant on the 1/8 inch thread seals the port side.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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