Airtac PZB Cross Threaded Fitting PZB803D-S
SUS304 stainless variant (-S)The AirTAC Airtac PZB Cross Threaded Fitting PZB803D-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 PZB803D-S
The PZB803D-S is an AirTAC PZB threaded cross in the one-touch resin family: a 3/8in PT male stud on one leg and three Dia 8 mm tube ports on the other three legs, so a single threaded port fans out into three pneumatic or vacuum branches in one part. Push each soft nylon or polyurethane tube straight into its port until it bottoms out - the internal chuck grips the OD and the stainless spring gasket seals it - and press the release ring to free it again. The D suffix makes this a black-bodied version: unlike the PC and POC straights, where D only changes the release button, on the PZB cross it changes the body itself.
The -S variant keeps the black PBT body and upgrades the male stud to SUS304 stainless steel, which resists thread corrosion on wash-down frames and outdoor machines without changing a single dimension. This is the resin spec profile, not the metal BP line: 0 to 1.0 MPa working pressure, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof pressure and -20 to +70 C. The PT threads arrive pre-coated with sealant, so the stud seals into the port straight out of the bag; AirTAC publishes this catalogue in PT only, so no G or NPT option exists for this code.
Airtac PZB Cross Threaded Fitting PZB803D-S Technical Specifications
| Model | Airtac PZB Cross Threaded Fitting PZB803D-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 PZB803D-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 PZB803D-S Is Used
Cartoning machine vacuum pickup
One 3/8in PT port on the vacuum manifold feeds three Dia 8 mm lines to suction cups on a carton erecting head, replacing a stud-and-two-tees stack with a single sealed joint.
Pick-and-place on SMD handling rigs
The SUS304 stud and copper-free-friendly build suit electronics assembly benches where bare brass threads would corrode or contaminate, with three cup lines dropping off one port.
Bottling line hold-down distribution
A cross at the manifold on a rotary bottle rinser splits supply to three gripper stations, and the one-touch ports let maintenance swap crushed Dia 8 mm runs in seconds.
Is the Airtac PZB Cross Threaded Fitting PZB803D-S the Right Part?
Within the 3/8in PT row of the PZB ladder you can step down to Dia 6 (PZB603) or up to Dia 10 (PZB1003); Dia 12 is the top of that thread's range. Stepping down trims the bore for compact vacuum cups and short actuator lines, while stepping up gives lower resistance on longer manifold runs. If your port is a different size, Dia 8 is one of the few sizes carried on every PZB thread: it exists on 1/8in, 1/4in, 3/8in and 1/2in, so you can match the stud to the port without changing the tubing. Note the ladder edge cases: PZB has no M5 version at all, and 1/8in tops out at Dia 8.
Tube OD must match exactly - a Dia 6 cross will not seal on 1/4in (6.35 mm) imperial tube, so convert the tubing, not the fitting. If you only need two branches from one port, a PEB branch tee is the leaner choice; the PZB cross earns its place when three independent drops share one supply or vacuum source and two stacked tees would add joints, cost and leak points.
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 PZB803D-S FAQ
It is an AirTAC PZB threaded cross joining a 3/8in PT male stud to three Dia 8 mm one-touch tube ports. Ratings (resin profile): working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. Tubing is soft nylon or polyurethane. The body is black PBT (D suffix) and the male stud is SUS304 stainless; the PT thread arrives with sealant applied.
No. On the PZB family, -S upgrades the male stud to SUS304 while the cross body stays PBT - here in black because of the D suffix. Pressure, vacuum, proof and temperature ratings are identical to the standard PZB803D, and the dimensions are unchanged, so it drops straight into the same panel cut-out or port pattern.
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