Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF402D
The AirTAC Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF402D 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 PMF402D
The PMF402D is an AirTAC PMF bulkhead connector, the one-touch fitting built to pass through a panel or machine wall. It accepts Dia 4 mm soft nylon or polyurethane tubing on the tube side and offers a 1/4" PT male thread on the port side, finished in black (the D suffix). Push the tube straight into the chuck and the internal grip locks it; press the POM release ring and the tube frees off again, even after the fitting is mounted behind a panel.
This is the resin/brass profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a service temperature of -20 to +70 C. The POM release button and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-ring do the sealing work, while the brass stud arrives with sealant already applied to the thread.
Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF402D Technical Specifications
| Model | Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF402D |
|---|---|
| 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 PMF402D
| 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 PMF402D Is Used
Control cabinet pass-through
Mount PMF402D through the wall of an injection moulder's control cabinet so the solenoid valve manifold inside can be piped to a vacuum ejector outside without opening the door.
Pick-and-place tooling
Bring a 4 mm vacuum sensing line through the aluminium plate of a pick-and-place gantry, locking the fitting with the M12x1 nut so hose routing stays on the clean side of the plate.
Conveyor sensor airline
Feed a Dia 4 nylon line to a photo-eye blow-off nozzle on a bottling line conveyor, terminating at the 1/4" port of a junction block with sealant already on the stud thread.
Is the Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF402D the Right Part?
Dia 4 is the smallest tube size the PMF family is made in, so there is no step down; the next size up is Dia 6 on the PMF602, which gains flow capacity through a wider bore but needs a larger locknut (M14x1 versus the M12x1 nut of this Dia 4 part). On the thread side, PMF401 drops you to 1/8" for tighter ports and PMF403 steps up to 3/8". Match the male thread to the port you are screwing into and the tube code to the tubing exactly - a Dia 4 chuck will not seal on 5/32" or 1/4" tube, no matter how close it looks.
Choose a PMF over a plain PC male connector when the tubing has to terminate on the far side of a sheet-metal wall: the fitting screws through the hole, the locknut clamps it from behind, and the tube connects from the front without reaching inside the enclosure.
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 PMF402D FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The fitting joins Dia 4 mm soft nylon or polyurethane tube to a 1/4" PT male thread, and the bulkhead locknut thread for Dia 4 is M12x1. The black D suffix changes the body colour; it does not change any rating.
Drill a hole that accepts the M12x1 locknut, insert the fitting from the front of the panel, and run the locknut up from behind - the stud thread arrives with sealant applied, so no extra tape is needed. Then push your Dia 4 tube into the front chuck until it stops; to remove it, hold the fitting and press the release ring while pulling the tube out.
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