Airtac PZB Cross Threaded Fitting PZB603D-S
SUS304 stainless variant (-S)The AirTAC PZB Cross Threaded Fitting PZB603D-S is a genuine threaded cross for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeThreaded cross
- SeriesPZB
- 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 PZB Cross Threaded Fitting PZB603D-S
The PZB603D-S is an AirTAC PZB threaded cross: a four-way fitting with one 3/8 inch PT male stud and three Dia 6 mm one-touch tube ports radiating from a central body. It is the only shape in the range that splits one threaded supply into three tube lines from a single part, so a manifold drop can feed three actuators without stacking tees. Connection is push-to-connect: push the soft nylon or polyurethane tube home until it stops, the stainless chuck set grips the OD, and pressing the release ring lets the tube back out for rework.
This is the resin/brass one-touch 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 working temperature of -20 to +70 C. The -S suffix fits a SUS304 stainless stud while the cross body stays PBT - finished in black here, the D option changing the body colour rather than any performance figure. Every pressure, vacuum and temperature number is identical to the grey standard part, and the 3/8 inch thread arrives pre-coated with sealant.
Airtac PZB Cross Threaded Fitting PZB603D-S Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB603D-S |
|---|---|
| Type | Threaded cross |
| Series | PZB |
| 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 PZB Cross Threaded Fitting PZB603D-S
| PZB | Threaded cross. |
|---|---|
| 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 PZB Cross Threaded Fitting PZB603D-S Is Used
Pick-and-place robot air distribution
On a 3/8 inch PT drop from the robot base manifold, the cross splits the feed to gripper close, gripper open and a vacuum ejector line in Dia 6 tube, all routed inside the arm shroud without extra junction blocks.
Bench-top test rig gas manifold
A laboratory leak-test station taps one 3/8 inch regulated line and feeds three Dia 6 test heads simultaneously; the SUS304 stud keeps the threaded joint corrosion-free around wash-down or humid test cells while ratings stay at the standard resin profile.
Bottling line reject-blower header
A single 3/8 inch PT tap above the conveyor feeds three Dia 6 air nozzles aimed at off-centre bottles. Push-in ports let maintenance swap a cracked tube in seconds during a short changeover window.
Is the Airtac PZB Cross Threaded Fitting PZB603D-S the Right Part?
Dia 6 is the smallest tube size the PZB family is made in - there is no Dia 4 cross at any thread, so if you need smaller you change fitting family, not code. The next step up is PZB803D-S (Dia 8, 3/8 inch), which gives you roughly a 78 percent larger bore area and noticeably better flow on longer runs. On the thread axis, PZB602D-S (1/4 inch) steps down and PZB604D-S (1/2 inch) steps up, both valid at Dia 6; note that a 1/8 inch PZB only exists in Dia 6 and Dia 8, which is why this 3/8 inch stud is the practical sweet spot for a Dia 6 supply drop.
Match the 3/8 inch PT stud to a port tapped 3/8 PT or use a reducing bush at a larger manifold boss. Tube OD must match exactly: the Dia 6 chuck will not seal on 1/4 inch (6.35 mm) hose, and forcing it is a leak, not a connection. If you only need two tube branches, a PEB male branch tee is the leaner choice; the cross earns its place when three drops come off one threaded point.
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 PZB Cross Threaded Fitting PZB603D-S FAQ
Tube size: Dia 6 mm on all three push-in ports. Thread: 3/8 inch PT male stud (sealant pre-applied). Working pressure: 0-1.0 MPa (0-10 kgf/cm2). Negative pressure: -750 mmHg (10 Torr). Proof pressure: 1.5 MPa. Working temperature: -20 to +70 C. Tubing: soft nylon or polyurethane. The -S variant adds a SUS304 stud; body stays PBT in black, and no pressure or temperature figure changes versus the grey standard part.
No. The chuck set is sized to grip a 6 mm outside diameter exactly, and 1/4 inch hose measures 6.35 mm, so it will neither seat nor seal. Use Dia 6 tube, or step the whole fitting to the PZB803D-S (Dia 8) or PZB104D-S style codes for larger hose. Also remember PZB is never made with an M5 thread or a Dia 4 tube, so those combinations cannot be substituted in this family.
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