Airtac PYB Y-Type Threaded Tee Fitting PYB803D-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB803D-S is a genuine branch y for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeBranch Y
- SeriesPYB
- 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 PYB Y-Type Threaded Tee Fitting PYB803D-S
The PYB803D-S is an AirTAC PYB branch Y, a push-in fitting whose male 3/8 in PT stud splits one supply port into two Dia 8 tube outlets set at a Y angle. Push each soft nylon or polyurethane tube into its chuck until it seats; the stainless spring gasket and chuck grip the OD, and pressing the release ring lets the tube back out. Unlike the PC and POC straights, where the D suffix only changes the button, here D means the body itself is moulded black.
This is the resin/brass spec profile, not the metal line: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. The -S suffix fits a SUS304 male stud while the body stays PBT, so the pressure, temperature and dimension figures match the standard grey PYB803 exactly. AirTAC ships threaded parts with sealant already on the taper.
Airtac PYB Y-Type Threaded Tee Fitting PYB803D-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB803D-S |
|---|---|
| Type | Branch Y |
| Series | PYB |
| 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 PYB Y-Type Threaded Tee Fitting PYB803D-S
| PYB | Branch Y. |
|---|---|
| 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 PYB Y-Type Threaded Tee Fitting PYB803D-S Is Used
Twin grippers from one valve outlet
A pick-and-place robot cell feeding two pneumatic grippers from a single 3/8 in valve port uses this Y to split supply into two Dia 8 lines without adding a junction block.
Air-knife nozzle pair on a conveyor
On a bottling line drying station, one stud off the manifold branches into two Dia 8 feeds for a pair of blow-off nozzles aimed at opposite shoulders of passing containers.
Lab bench vacuum distribution
A laboratory filtration bench running twin suction flasks from one vacuum tap can Y-split at the source with this fitting, taking advantage of its -750 mmHg vacuum rating.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB803D-S the Right Part?
On the PYB ladder a 3/8 in thread is offered in Dia 6, 8, 10 and 12, so your neighbouring choices are PYB603-S one step down and PYB1003-S one step up. Stepping to 6 mm suits lighter gripper circuits; stepping to 10 mm buys capacity on longer runs. Note the stud: 3/8 in PT mates with a tapped manifold or valve port of the same nominal size, and tube OD must match the outlet exactly - this Dia 8 socket will not hold 5/16 in or 10 mm tube. If you need both branch legs at 90 degrees instead of Y-spaced, the PEB male branch tee is the shape 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 PYB Y-Type Threaded Tee Fitting PYB803D-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. It accepts Dia 8 soft nylon or polyurethane tube on both legs and its male thread is 3/8 in PT with sealant pre-applied. In this -S version the stud is SUS304 on a black PBT body, and all ratings are identical to the standard PYB803.
No. On the PYB family the -S option fits a SUS304 male stud for added corrosion resistance at the threaded connection, while the body remains PBT. The tube ladders, dimensions, pressure and temperature figures are unchanged, so it is a direct for the standard PYB803 rather than a re-rated part.
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