Airtac PYB Y-Type Threaded Tee Fitting PYB804-S
SUS304 stainless variant (-S)The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB804-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 PYB804-S
The AirTAC PYB804-S is a stainless-stud branch Y in the resin one-touch range. It takes Dia 8 mm soft nylon or polyurethane tubing in one leg and splits the supply into two further Dia 8 mm legs, while the 1/2" PT male stud screws into the port. Push each tube home and the internal chuck grips it under spring load; press the POM release ring and the tube slides free again.
The -S suffix fits a SUS304 stainless steel stud instead of the standard brass one, so the thread that sits inside the port resists corrosion in damp or chemically aggressive plant air. The body stays PBT and every rating is unchanged from the grey version: 0 to 1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg vacuum and -20 to +70 C. The thread arrives with sealant already applied, and the dimensions match the standard PYB804 exactly, so it drops into existing drawings without re-modelling the manifold.
Airtac PYB Y-Type Threaded Tee Fitting PYB804-S Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB804-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 PYB804-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 PYB804-S Is Used
Electroplating line air feed
The SUS304 stud sits in the wet, fume-laden air above a plating tank where a brass thread would corrode. The Y splits one supply run out to twin rinse-station cylinders.
Bottling conveyor gate control
A single 1/2" drop from the washdown-area header feeds two Dia 8 lines through the PYB, one per pneumatic gate pusher, without a separate tee block to corrode at the port.
Chemical dosing skid actuation
On a dosing skid where splash and vapour attack plated threads, the stainless stud at the valve manifold port keeps the instrument-air Y-branch serviceable for both diaphragm pump pilots.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB804-S the Right Part?
On a 1/2" thread the PYB ladder only runs from Dia 8 upward, so PYB804-S is the smallest tube you can buy on this port size - there is no Dia 6 or Dia 4 counterpart. Stepping up to PYB1004-S or PYB1204-S raises the bore and the air capacity through all three legs, which matters when two downstream actuators both draw on the same feed. If your port is 3/8", the matching part is PYB803-S instead. Whichever way you go, tube OD must match the code exactly: a Dia 8 fitting will not seal on 5/16" or any other nominal tube.
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 PYB804-S FAQ
It is a one-touch branch Y for Dia 8 mm tubing on all three legs with a 1/2" PT male stud. Working pressure is 0 to 1.0 MPa (0 to 10 kgf/cm2), proof pressure 1.5 MPa, vacuum rating -750 mmHg (10 Torr) and temperature range -20 to +70 C. It runs on soft nylon or polyurethane tube, and the SUS304 stud replaces the brass one without changing any pressure or temperature figure.
No. AirTAC changes only the stud material to SUS304; the PBT body, the POM release ring and the internal chuck are the same. Every published pressure, vacuum and temperature figure is identical to the grey PYB804, and the dimension tables match, so no drawing changes are needed when you swap the two.
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