Airtac PYB Y-Type Threaded Tee Fitting PYB4M5D
The AirTAC Airtac PYB Y-Type Threaded Tee Fitting PYB4M5D 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 PYB4M5D
The PYB4M5D is an AirTAC PYB branch Y one-touch fitting: a single M5x0.8 male inlet that splits the supply into two Dia 4 mm tube legs angled like a Y. Push each soft nylon or polyurethane tube into its socket and the internal chuck grips it; pressing the POM release ring frees it again without tools. The brass-and-PBT construction, stainless spring gasket and NBR O-ring seal both legs from one shared inlet.
This part runs on the resin one-touch profile: 0 to 1.0 MPa working pressure, 1.5 MPa proof pressure, -750 mmHg (10 Torr) vacuum capability and -20 to +70 C service. Because the code ends in D, the Y body itself is black rather than the standard grey; on this series the D suffix changes the body, not just the button. The M5 end arrives fitted with a sealing gasket instead of pre-applied thread sealant, so it is meant for a machined M5x0.8 port with a sealing face.
Airtac PYB Y-Type Threaded Tee Fitting PYB4M5D Technical Specifications
| Model | Airtac PYB Y-Type Threaded Tee Fitting PYB4M5D |
|---|---|
| Type | Branch Y |
| Series | PYB |
| 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 PYB Y-Type Threaded Tee Fitting PYB4M5D
| 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. |
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 PYB4M5D Is Used
Vacuum pick-and-place on PCB handling heads
Its -750 mmHg (10 Torr) rating lets this Y feed twin mini suction cups from one M5 vacuum port on a small PCB transfer head, halving the number of ports the ejector block needs.
Pilot feed to a compact two-jaw gripper
On a rotary indexing table, a single M5 outlet on the rotary union can supply both jaw cylinders of a small pneumatic gripper through this Y, keeping the plumbing inside a tight wrist envelope.
Benchtop micro-dispensing rig
Split the regulated output of an M5-port air preparation valve to two low-flow dispense valves on a benchtop adhesive or paste station, where the 4 mm legs keep tubing bends short behind the panel.
Is the Airtac PYB Y-Type Threaded Tee Fitting PYB4M5D the Right Part?
Dia 4 is the smallest tube size the PYB family offers, so there is nothing below it - if your line is bigger, step up to the PYB6M5 (Dia 6 on the same M5 thread) and gain bore for longer runs or higher demand branches. On the thread side, this M5 version shares the Dia 4 platform with the PYB401, which carries a 1/8 in PT stud instead; choose the M5 when your manifold or valve has a tapped M5 port, and the 401 for conventional 1/8 in ports.
Tube OD must match exactly: these sockets are cut for 4 mm OD tubing only, so 1/4 in (6.35 mm) or 5/32 in tube will neither seat nor seal. If you need a straight pass-through or a tee rather than a Y split, the PU union or PE union tee cover those shapes separately.
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 PYB4M5D FAQ
It is a branch Y one-touch fitting with two Dia 4 mm tube sockets on an M5x0.8 male thread (M5 thread with sealing gasket, standard PT port family). Working pressure is 0 to 1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, negative pressure down to -750 mmHg (10 Torr), and service temperature -20 to +70 C. It is the resin/brass profile, not the 0.9 MPa metal line, and it takes soft nylon or polyurethane tubing only.
Unlike the larger PT-threaded sizes in this catalogue, M5 parts are supplied with a sealing gasket rather than pre-applied thread sealant, so the PYB4M5D is intended for a machined M5x0.8 port with a flat sealing face. It will not seal into a tapered 1/8 in port; for that port use the PYB401, the same Dia 4 Y with a 1/8 in stud. Remember the sockets accept 4 mm OD tube only - a nominal 1/4 in tube is a different diameter and will not grip.
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