Airtac POC Round Thread Straight Connector POC803D
The AirTAC Airtac POC Round Thread Straight Connector POC803D is a genuine male connector (compact) for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector (compact)
- SeriesPOC
- 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 POC Round Thread Straight Connector POC803D
The POC803D is an AirTAC POC compact male connector, the shorter-bodied straight male fitting in the resin one-touch range. It joins a Dia 8 mm soft nylon or polyurethane tube to a 3/8 in PT male thread, which is the pairing to reach for when a full-length connector would stand too proud of the port. Push the tube in until it bottoms out and the internal chuck grips its outside diameter; press the release ring and the tube frees off again.
This part runs on the resin and brass spec profile: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature window of -20 to +70 C. Sealing and gripping come from a POM release button and chuck, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring. A detail worth knowing before ordering: on the POC series the D suffix turns only the release button black, not the body, so you can colour-code this Dia 8 drop against grey-button neighbours on a shared manifold. The 3/8 in thread arrives with sealant already applied.
Airtac POC Round Thread Straight Connector POC803D Technical Specifications
| Model | Airtac POC Round Thread Straight Connector POC803D |
|---|---|
| Type | Male connector (compact) |
| Series | POC |
| 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 POC Round Thread Straight Connector POC803D
| POC | Male connector (compact). |
|---|---|
| 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 POC Round Thread Straight Connector POC803D Is Used
Compact cylinder drops on rotary index tables
Index-table drive cylinders often sit in a shallow pocket where a standard straight connector fouls the table edge. The POC's shortened body clears the pocket while the 3/8 in thread suits the larger port pads on Dia 50-63 mm actuator heads.
Manifold outlets on packaging machine valve banks
A 3/8 in valve manifold outlet feeding an 8 mm actuator line is a common step on pouch and carton machines. The black release button gives a visible cue for the Dia 8 drops when the bank mixes tube sizes.
Vacuum pick-up lines on electronics handling rigs
Rated to -750 mmHg (10 Torr), the POC803D works on the suction side of small ejector setups, such as PCB pick-and-place fixtures running soft polyurethane tube where the release ring makes nozzle swaps quick.
Is the Airtac POC Round Thread Straight Connector POC803D the Right Part?
Inside the 3/8 in POC ladder, Dia 8 is the smallest tube offered, so there is no smaller step in this thread; to go smaller you drop the port to 1/4 in (POC802) or to M5 with Dia 4 or 6 tube. Stepping up is straightforward: POC1003 or POC1203 carry a Dia 10 or Dia 12 line off the same thread. If you need more wrench engagement or a longer body in the same sizes, the PC series covers Dia 8 at 3/8 in as PC803.
Match the thread to the port and the tube OD to the collet exactly. A Dia 8 chuck will not seal on 5/16 in or 1/4 in tube, and forcing the wrong OD in is the most common cause of a slow weep that only shows under pressure.
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 POC Round Thread Straight Connector POC803D FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. The size is a Dia 8 mm tube end on a 3/8 in PT male thread, with applicable tubing being soft nylon or polyurethane. These are the resin and brass profile figures, not the metal BP-series ratings.
No. On the POC series the D suffix changes only the release button from grey to black; the body stays standard. That is useful for marking a particular tube size or function at a glance, but if you need a fully black body on a threaded connector, a different series is the place to look rather than this suffix.
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