Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S
SUS304 stainless variant (-S)The AirTAC Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S is a genuine male branch tee for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale branch tee
- SeriesPEB
- 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 PEB T-Shaped Straight Thread Tee Connector PEB401D-S
The PEB401D-S is AirTAC's male branch tee from the one-touch resin family, with a SUS304 stainless steel stud added to the standard part. It joins Dia 4 mm soft nylon or polyurethane tube to a 1/8 in PT male thread, and a second push-in port branches off at 90 degrees so you can tap a gauge, sensor or pilot line off a straight run without breaking the main circuit. Push the tube home and the internal chuck grips it against the stainless spring gasket; press the POM release ring to free it again.
Ratings follow the standard resin profile and are unchanged by the stainless stud: 0-1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg vacuum, -20 to +70 C. One point buyers often get wrong: on a PEB tee the -S does NOT make the whole body stainless. The body stays PBT (black here, because on this series the D suffix recolours the entire body, not just the release button) and only the male stud is SUS304. The thread arrives with sealant pre-applied, so it is ready to wind straight into the port.
Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S Technical Specifications
| Model | Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S |
|---|---|
| Type | Male branch tee |
| Series | PEB |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| 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. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S
| PEB | Male branch tee. |
|---|---|
| 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. |
| -S | Stainless-steel body. |
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 PEB T-Shaped Straight Thread Tee Connector PEB401D-S Is Used
Vacuum ejector tap on a pick-and-place head
Branch a Dia 4 feed line off the main run to feed a compact ejector on a carton-handling robot, teeing off in the tight space between the gripper plate and the manifold.
Wash-down sensor line on a dairy filler
The SUS304 stud resists the rust that eats plain brass studs in daily hose-down areas, making this tee a sensible takeoff point for a pressure sensor on a milk-filling frame.
Pilot signal branch on a packaging machine panel
Wind the 1/8 in PT stud into a small pilot port and branch a Dia 4 signal line off to a flow-control or pressure-switch circuit without adding a separate junction fitting.
Is the Airtac PEB T-Shaped Straight Thread Tee Connector PEB401D-S the Right Part?
PEB401D-S sits at the bottom of the tube ladder for this prefix. Dia 4 is the smallest tube a PEB branch tee is made in, so there is no step down; step up one size to PEB601 for Dia 6 tube and the larger bore carries less pressure drop on longer branch runs. On the thread side you can go down to PEBM5, which swaps sealant for an M5x0.8 port closed by a sealing gasket, or up to PEB402 for a 1/4 in PT port. Whichever you choose, the tube diameter must match the fitting exactly: the chuck in a Dia 4 pocket cannot grip a 6 mm hose, let alone a 1/4 in one.
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 PEB T-Shaped Straight Thread Tee Connector PEB401D-S FAQ
It is a one-touch male branch tee for Dia 4 mm tube with a 1/8 in PT male thread and a SUS304 stainless stud. Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum capability -750 mmHg (10 Torr), operating temperature -20 to +70 C, for soft nylon or polyurethane tubing. The -S suffix changes only the stud material, not these figures.
No. The chuck inside is sized for one outside diameter only, so a 6.35 mm hose will neither seat nor seal in a Dia 4 pocket and will work loose under pressure. Use PEB601 or PEB602 if your line is 6 mm, or step between sizes with a dedicated reducer such as PG6-4 rather than forcing a mismatch.
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