Airtac PP Pipe Plug PP4
The AirTAC Airtac PP Pipe Plug PP4 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 PP4
The PP4 is an AirTAC PP series one-touch plug, a push-in cap that blanks the open socket of a one-touch fitting on a Dia 4 mm tube line. It carries no thread and no tube path: press it into the socket until the internal chuck grips it, and the port is sealed. To remove it, press the release ring of the fitting it sits in and the plug pulls straight out.
PP belongs to the resin and brass one-touch profile: 0-1.0 MPa (0-10 kgf/cm2) working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and a -20 to +70 C temperature window. The contact materials match the rest of the resin line - POM at the grip surface, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring doing the sealing.
Airtac PP Pipe Plug PP4 Technical Specifications
| Model | Airtac PP Pipe Plug PP4 |
|---|---|
| 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 PP4
| 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 PP4 Is Used
Blanking spare manifold outlets
Control panels often arrive with unused branch ports on the air distribution manifold. A PP4 caps each Dia 4 one-touch outlet so the panel can be pressure-tested and shipped without open lines.
Sealing test rigs between trials
On a leak-test bench running Dia 4 lines to small cylinders, plugging the open sockets between trials keeps dust and swarf out of the chuck seals without draining the circuit.
Staging machine rebuilds
During the retrofit of a packaging machine, Dia 4 tubing runs that are not yet commissioned can be closed with PP4 plugs until the actuators are fitted, keeping the rest of the circuit live.
Is the Airtac PP Pipe Plug PP4 the Right Part?
PP4 is the smallest plug in the PP ladder - there is no 3.2 mm size on this series, since the mini diameters are reserved for PC and PL. The next size up is PP6, which suits the 6 mm runs that feed most mid-size actuators. Match the plug diameter to the fitting socket exactly: a Dia 4 plug will not seal a Dia 6 socket, and the tube OD stamped on the fitting is the number to go by.
Choose a plug instead of a shut-off valve or a threaded cap when the goal is simply to close an unused one-touch socket - a spare manifold outlet, an empty tee leg, or a tube end left open between build stages. No thread sealing, no valve logic, just a push fit.
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 PP4 FAQ
The PP4 is a one-touch plug for Dia 4 mm tube. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum rating is -750 mmHg (10 Torr), proof pressure is 1.5 MPa and the temperature range is -20 to +70 C. It suits soft nylon or polyurethane tubing systems and comes in grey as standard.
The plug is retained by the chuck inside the one-touch socket, so you remove it the same way as a tube: press the release ring of the fitting squarely and pull the plug out. Because the plug has no tube bore, it must be the exact diameter of the socket - a Dia 4 plug only seats correctly in a Dia 4 fitting.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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