Airtac BD Female-Male Straight Connector BD0104
The AirTAC Airtac BD Female-Male Straight Connector BD0104 is a genuine male and female connector rated to 3.0 MPa proof pressure and 0 to +150 °C, for joining threaded pipe runs.
- TypeMale and female connector
- SeriesBD
- 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 BD Female-Male Straight Connector BD0104
The BD0104 is a one-piece reducing connector with a 1/8in female PT thread on one side and a 1/2in male PT thread on the other, machined into a single nickel-plated body. In AirTAC's BD coding the first size (01 = 1/8in) is always the female thread and the second (04 = 1/2in) is always the male, so a gauge, switch or small-bore component can be screwed straight onto the big 1/2in supply line without a coupling in between.
This family is built for conditions that stop a one-touch resin fitting cold: 3.0 MPa proof pressure (double the resin range), 0 to 150 C continuous temperature, and a -750 mmHg vacuum rating. That is why a metal connector like this turns up bolted to hot machine frames, near dryers and ovens, and on any permanently assembled run where nobody wants to revisit a push-in joint that has softened.
Airtac BD Female-Male Straight Connector BD0104 Technical Specifications
| Model | Airtac BD Female-Male Straight Connector BD0104 |
|---|---|
| Type | Male and female connector |
| Series | BD |
| Connection | Threaded both ends |
| 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. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac BD Female-Male Straight Connector BD0104
| BD | Male and female connector. |
|---|---|
| 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 BD Female-Male Straight Connector BD0104 Is Used
Bottle-washer steam section
Take a 1/8in pressure gauge or vacuum switch off a 1/2in PT branch feeding the hot rinse and steam-heated zone of an industrial bottle washer, where the 150 C rating keeps the joint alive.
Thermoformer clamp air
Feed clamp or pin actuators on a thermoforming machine, tapping the 1/2in frame circuit down to a 1/8in component port right beside the heated mould area.
Commercial laundry presses
Pick off a 1/8in solenoid valve feed from a 1/2in air header on a steam-heated ironer or laundry press, where the steam jacket pushes local metal temperatures well past 70 C.
Is the Airtac BD Female-Male Straight Connector BD0104 the Right Part?
You are at the top of the 1/8in-female ladder: BD0103 (1/8in female x 3/8in male) is the only step down on the male side, and it takes the male thread one size smaller if your header port is 3/8in. There is no larger Thread II with a 01 female base in the BD range. To grow the female side instead, BD0204 keeps the 1/2in male but steps the female thread up to 1/4in - the right move if the component you are mounting has a 1/4in port.
Compared with making the same reduction from a BB0104 male connector plus a separate socket, the BD0104 removes one joint, one leak path and one assembly step, which matters on a line that will be built once and heated every cycle.
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 BD Female-Male Straight Connector BD0104 FAQ
The BD0104 joins a 1/8in PT female thread (Thread I) to a 1/2in PT male thread (Thread II) in one nickel-plated body. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it holds vacuum to -750 mmHg (10 Torr), proof pressure is 3.0 MPa, and the permitted temperature range is 0 to 150 C. No tube is involved - both connections are threads.
Yes. PT is a tapered thread that seals on the thread flanks, so wrap PTFE tape or apply a suitable pipe sealant to the 1/2in male thread before wrenching it into the port; a dry PT joint will weep. Thread the 1/8in female side onto your gauge or component and tighten with a hex wrench on the flats. AirTAC's code tells you which thread is female (the first, 01) but not which physical end is which, so confirm by eye before assembly - the large hex is the 1/2in male.
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