Airtac PLM Right Angle Bulkhead Fitting PLM8D
The AirTAC Airtac PLM Right Angle Bulkhead Fitting PLM8D is a genuine bulkhead male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeBulkhead male elbow
- SeriesPLM
- 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 PLM Right Angle Bulkhead Fitting PLM8D
The PLM8D is an AirTAC PLM bulkhead male elbow in the resin one-touch range, sized for Dia 8 mm soft nylon or polyurethane tube. It is built to be inserted through a panel or machine wall: the PT male thread passes through the hole and is secured with the bulkhead locknut, the elbow turns the air path at 90 degrees on the outside, and the tube is gripped inside the body by the stainless spring gasket and chuck assembly.
Connection is genuinely one-touch: push the tube firmly into the chuck until it bottoms, and the gripping ring holds it under pressure; press the POM release button and the tube slides free for rerouting or maintenance. Like every part in this resin catalogue it is rated 0-1.0 MPa (0-10 kgf/cm2) working pressure, 1.5 MPa proof, -750 mmHg vacuum and -20 to +70 C. The D suffix gives the black body finish, and on the PLM family this changes the body colour itself, unlike PC and POC where D only changes the release button.
Airtac PLM Right Angle Bulkhead Fitting PLM8D Technical Specifications
| Model | Airtac PLM Right Angle Bulkhead Fitting PLM8D |
|---|---|
| Type | Bulkhead male elbow |
| Series | PLM |
| 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 PLM Right Angle Bulkhead Fitting PLM8D
| PLM | Bulkhead male elbow. |
|---|---|
| 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 PLM Right Angle Bulkhead Fitting PLM8D Is Used
Control cabinet air feed
Mount the PLM8D through the back wall of an electrical control cabinet so the PT thread and wiring sit inside while the Dia 8 tube drops to valves or a manifold outside, keeping the cabinet sealed around the M16x1 locknut.
Robot cell guard penetration
Take a Dia 8 supply line through the sheet-metal frame of a welding or assembly robot cell; the elbow turns the run along the guard without the tube bending sharply against the hole edge.
Lab instrument rear panel
On analytical or diagnostic instruments where pneumatic lines leave a housing, the black body and bulkhead mounting let service technicians detach the instrument lid without disturbing a single tube connection.
Is the Airtac PLM Right Angle Bulkhead Fitting PLM8D the Right Part?
Dia 8 sits mid-ladder in the bulkhead elbow family: PLM6 is the step down (with an M14x1 locknut) and PLM10 is the step up (M20x1). Stepping size changes three things at once: the flow capacity rises with the bore, the locknut thread changes, and so does the panel hole you need to drill. For this Dia 8 version the locknut thread is M16x1.
Match the PT male thread to the port you are feeding and remember the bulkhead wall thickness is taken up by the locknut, not the fitting body. Tubing must be Dia 8 OD exactly - a nominal 1/4 inch tube will not seal in a Dia 8 chuck, and soft nylon or polyurethane only. If you need the air path to turn inside the panel rather than outside it, the PM bulkhead union or PLM's threaded sibling PMF are the shapes to compare.
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 PLM Right Angle Bulkhead Fitting PLM8D FAQ
It is a PLM bulkhead male elbow for Dia 8 mm tube with a PT male thread and an M16x1 bulkhead locknut, finished in black. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa and temperature range -20 to +70 C. It is for soft nylon or polyurethane tube only, and the PT thread arrives with sealant already applied.
No. The chuck and spring gasket are machined for an 8 mm outside diameter only; 1/4 inch tube is 6.35 mm and would not grip or seal. Use the correct Dia 8 soft nylon or polyurethane tube, cut it square, and push it fully home before relying on the connection.
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