Airtac PP Pipe Plug PP8D
The AirTAC Airtac PP Pipe Plug PP8D is a genuine plug for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypePlug
- SeriesPP
- 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 PP Pipe Plug PP8D
The PP8D is an AirTAC PP one-touch plug, a plain blanking insert with no thread on either end. It pushes straight into the chuck of any Dia 8 mm one-touch fitting or manifold outlet, where the stainless spring gasket grips it and seals the port shut. Pull it out again by pressing the host fitting's release ring, so an unused branch can be opened up later without tools or thread sealant.
This is a resin and brass series part, not from the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature window of -20 to +70 C. The POM plug body here is black, because on PP parts the D suffix recolours the whole body, not just a button as on the PC and POC straight connectors.
Airtac PP Pipe Plug PP8D Technical Specifications
| Model | Airtac PP Pipe Plug PP8D |
|---|---|
| Type | Plug |
| Series | PP |
| 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 PP Pipe Plug PP8D
| PP | Plug. |
|---|---|
| 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 PP Pipe Plug PP8D Is Used
Blanking spare outlets on a valve manifold
Pneumatic valve manifolds are often supplied with more stations than the machine uses. A PP8D seals each spare Dia 8 outlet on the manifold so the circuit holds pressure until a future station is added.
Port sealing during commissioning and debug
While a packaging machine is being staged, circuits are brought live section by section. Push a PP8D into the not-yet-used Dia 8 ports, then release it from the fitting when that section is commissioned.
Machine rework on a bottling line
When a guide rail or filling head actuator is moved, its old Dia 8 take-off on the air distribution block is capped with a PP8D in black, matching the dark control cabinetry on the line.
Is the Airtac PP Pipe Plug PP8D the Right Part?
Sizing runs in 1 mm-class steps on this series: PP6 blanks a Dia 6 port and PP10 blanks a Dia 10 port, with PP8 in between. Step down when capping a small actuator or sensor branch, step up when the distribution block is feeding larger-bore tubing, but the plug OD must equal the host port exactly - an 8 mm plug will not seat or seal in a Dia 6 or Dia 10 chuck.
If the port you need to close has a male thread instead of a one-touch socket, a threaded plug is the wrong shape; use this PP only where the outlet takes push-in tube. For permanent closure a pipe plug on a threaded port is the better answer, while PP suits ports you may re-open during rework or capacity upgrades.
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 PP Pipe Plug PP8D FAQ
PP8D is a Dia 8 mm one-touch plug with no thread; it blanks a Dia 8 port. As a resin series part it is rated for 0-1.0 MPa (0-10 kgf/cm2) working pressure, vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and -20 to +70 C. The D suffix gives a black body, and it takes soft nylon or polyurethane system conditions within those limits.
The plug seats in the same chuck mechanism that grips tube, so removal needs no tools: press the release ring or button on the host fitting to free the spring gasket, then pull the plug out. Note that the plug has no grip collar of its own, so keep hold of the port size it matches - a Dia 8 plug only fits Dia 8 sockets.
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