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BU10

BU10
BU10

BU10 - 10 mm Nickel-Plated Brass Straight Union

The Pneuforce BU10 is an all-metal nickel-plated brass straight union sized for 10 mm outside-diameter tubing. Its union layout provides a practical tube connection for compressed-air and vacuum equipment without introducing an unnecessary threaded port.

The fitting includes a positive Click-Click grip collar release feature, providing audible and tactile feedback when the collar is depressed during tube removal.

10 mmTube OD
Tube-to-tubeConnection type
BrassNickel-Plated Body
Air + VacuumService

Technical Specifications

SpecificationDetails
Product TypeStraight Union; push-to-connect fitting
Part NumberBU10
Tube Size10 mm tube OD
Body MaterialAll-metal nickel-plated brass
Tube ReleasePositive Click-Click grip collar feedback during tube disengagement
MediaCompressed air and vacuum
Operating PressureFull vacuum (29inHg) to 12 bar (176 PSI)
Operating Temperature-40°C to +120°C / -40°F to +248°F
HS / HTS CodeHS Code 7412.20 & HTS Code 7412.20.0035

Industrial Nickel-Plated Brass Fitting

This B-Series all-metal fitting is intended for applications where plastic-bodied fittings may not be preferred. Nickel-plated brass provides excellent mechanical strength, corrosion resistance and long service life in demanding pneumatic and vacuum installations.

29inHgVacuum Rated
176 PSIMax Pressure
120°CMax Temperature
Click-ClickTube Release

Typical Applications

  • Joining two equal-OD sections of pneumatic tubing
  • Extending a compressed-air tube run
  • Connecting a replacement vacuum tube section
  • Machine maintenance and pneumatic line rework

Fitting Function

A straight union joins two compatible tube ends of the same outside diameter in a single line without a machine port.

Installation Note: Cut tubing squarely and push the tube fully into the fitting before pressurizing or applying vacuum. To remove tubing, depress the grip collar; the Click-Click release feedback helps confirm the collar has been disengaged for tube removal. Always confirm tubing compatibility for pressure, temperature and media.

Selecting and Installing This Fitting

For BU10, match the specified 10 mm tubing outside diameter at every connection. Do not rely on approximate inch/metric equivalence without checking tubing tolerances. Cut the tubing squarely, insert it fully and leave access to the release collar. Check actual tubing pressure and temperature limits, which may be lower than the metal fitting limits.

Frequently Asked Questions

What does a straight pneumatic union do?

BU10 joins two sections of 10 mm outside-diameter tubing end-to-end, without a threaded port.

Can I use a straight union to extend an air line?

Yes, for compatible tubing and operating conditions. Cut both tube ends squarely and insert them fully into the separate push-to-connect openings.

How is a straight union different from a reducing union?

A straight union connects matching tube diameters. A reducing union connects different tubing outside diameters and may introduce an additional flow restriction.

Where is a straight union useful for maintenance?

It can reconnect a damaged or shortened pneumatic tube run, extend a line or provide a detachable connection during an equipment modification, subject to the installation specifications.

Is this fitting suitable for compressed air and vacuum?

The published all-metal B-Series range is specified for compressed air and vacuum service, subject to compatible tubing, proper sealing and the limits of the assembled system. Other fluids need separate compatibility confirmation.

What are the pressure and temperature limits?

The published fitting-family limits extend from full vacuum to 176 psi (12 bar, as listed for the fitting family), with a fitting temperature range of -40 to +248 °F (-40 to +120 °C). Actual system limits also depend on tubing, seals and installation; do not treat these as fluid-compatibility certifications.


Link to Pneuforce Data Sheets
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$7.51 each
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Suitable for Compressed Air, Vacuum & NON Potable Water Applications

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