Airtac BZ External Hex Plug BZ01-S
SUS304 stainless variant (-S)The AirTAC Airtac BZ External Hex Plug BZ01-S is a genuine hexagon head cap plug rated to 3.0 MPa proof pressure and 0 to +150 °C, for joining threaded pipe runs.
- TypeHexagon head cap plug
- SeriesBZ
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure3.0 MPa
- Temperature0 to +150 °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 BZ External Hex Plug BZ01-S
The BZ01-S is a hexagon head cap plug machined in solid SUS304 stainless steel, carrying a single 1/8in PT male thread. Its whole job is to close an unused threaded port: screw it into the spare tapping on a manifold block, valve station or actuator cover and the circuit is sealed. There is no tube side and no second thread, so the Thread I versus Thread II question that applies to the BB and BD connectors simply does not arise here - one code, one thread, one port.
What earns it a place on a hot line is the rating. This nickel-free stainless variant of the BZ family is proof tested to 3.0 MPa, works continuously from 0 to 150 C, and holds vacuum down to -750 mmHg (10 Torr), so the blank stays put beside heaters, dryers and hot manifolds where a resin cap would soften or creep. Because the part is SUS304 throughout, it also survives daily wash-down and caustic rinse, and its copper-free construction avoids contaminating sensitive electronics, plating and food processes.
Airtac BZ External Hex Plug BZ01-S Technical Specifications
| Model | Airtac BZ External Hex Plug BZ01-S |
|---|---|
| Type | Hexagon head cap plug |
| Series | BZ |
| Connection | Threaded both ends |
| 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 | 3.0 MPa |
| Temperature | 0 to +150 °C |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
Nickel-plated metal body. AirTAC does not publish a per-part material breakdown for this family. This family is rated to 150 °C, but the TUBE is usually the limit - confirm your tubing's temperature rating before running it hot. Stainless (-S): SUS304 body throughout, for copper-free and corrosive environments. Pressure and temperature ratings are unchanged from the nickel-plated version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac BZ External Hex Plug BZ01-S
| BZ | Hexagon head cap plug. |
|---|---|
| 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 BZ External Hex Plug BZ01-S Is Used
Mould temperature controller manifolds
Spare gauge and pilot tappings on a thermoformer's water or oil manifold sit right next to the heated platen. A 1/8in PT BZ01-S blanks those ports without softening at platen-side temperatures that stop a resin plug.
Dairy and brewery wash-down stations
Valve banks on filling and CIP skids are hosed down with caustic rinse every shift. The SUS304 body of the BZ01-S shrugs off the wash, and the 1/8in thread caps the unused actuator ports left after configuration.
Oven heater circuit commissioning
Instrumented test tappings drilled into industrial hot-air dryer ducts need a temporary seal after commissioning. A 1/8in PT plug carries the 3.0 MPa proof margin and keeps sealing as the duct cycles to 150 C.
Is the Airtac BZ External Hex Plug BZ01-S the Right Part?
BZ01 is the smallest plug in the ladder, so there is no size below it; the next step up is BZ02 with a 1/4in PT thread, then BZ03 (3/8in) and BZ04 (1/2in). Size the plug to the port tapping itself, not to the pipe run it sits on - stepping up means re-tapping the block or adding an adapter, while a smaller plug leaves the port under-used. Thread standard is PT on every BZ; there is no NPT or G option in this family.
If the job is actually to close a tube end rather than a thread, BZ is the wrong tool: it has no tube grip at all. The BKC locknut range is the part that clamps Dia 4 to Dia 12 tubing, so pick a BKC when a hose needs sealing and keep the BZ for blanking tapped ports.
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 0 to +150 °C
Airtac BZ External Hex Plug BZ01-S FAQ
Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it holds negative pressure to -750 mmHg (10 Torr), proof pressure is 3.0 MPa, and the temperature range is 0 to 150 C. This SKU is the hexagon head cap plug with a 1/8in PT thread, made in SUS304 stainless steel. It is a thread-only part with no tube connection.
The hex head takes a standard open-end spanner sized to the 1/8in plug. AirTAC publishes no tightening torque for this family, so thread it in hand-tight on the PT taper, add seal tape or paste if the port is weeping, then wrench it down to a sound seal rather than to a written figure. Inspect the port thread first - a damaged tapping will leak no matter how good the plug is, and stepping up to a BZ02 1/4in plug will not fix a stripped 1/8in hole.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Pipe Joints
Request a Quote for Airtac BZ External Hex Plug BZ01-S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.