Thread to Barb Fittings

Barbed fittings

Pneumadyne’s extensive offering of pneumatic fittings includes a variety of thread to barb Straight Connectors, Elbows and Tees. Our precision machined fittings feature thread sizes ranging from 10-32 UNF to 3/8 NPT and barbs for use with 1/16 to 3/8 tube Id.

Barbed Fittings

Two styles of barbed fittings are manufactured to accommodate tubing requirements and installation preferences. It is our experience that softer, polyurethane tubing works better with a single-barb design while the double-barb is preferred for harder tubing such as polyethylene.

Our Pneu-Edge® fittings feature a consistently sharp, single-barb design which provides a tighter grip and seal which ensures permanent polyurethane tubing installation without the need for clamps. A smaller shank behind the barb allows the tubing to relax creating a tighter fit. Our double-barb design features durable brass barbs with the sharpness required to maintain connection even in high pressure and vibration applications.

Captured O-ring Seal Pneumatic Fittings

Pneumadyne fittings with 10-32 and ¼-28 UNF threads feature our captured o-ring design. When properly installed, the skirt around the o-ring allows the fitting to mechanically seat on the rim of the female thread and hold the fitting tight. The buna-n o-ring is captured inside the skirt of the fitting, concealing from view and providing a clean looking connection. The result is a superior seal which ensures a leakproof fit even when mated with a less than perfect sealing surface. When torqued down, the mechanical fit keeps the fittings tight and retains its position even under constant vibration. The captured o-ring design also eliminates the need for replacement gaskets or washers.

10-32 Tapered Thread Pneumatic Fittings

Straight Connectors with 1/16, 1/8 and .170 tube Id barbs and 10-32 threads are also available with our tapered thread design. This unique thread design eliminates the need for a soft seal undercut at the base of the fitting and produces a seal similar to pipe thread. The absence of the undercut also allows for a larger than normal orifice permitting more flow. Tapered threads are sturdier than thin walled 10-32 fittings and can be used in conventional straight female threads as well.

Pneumadyne’s threads to barb fittings are ideal for use in a wide variety of applications. In addition to installing them in a valve port, our fittings can be used with a pneumatic controls manifold to create a clean and organized distribution point for fluids or gases within your fluid handling system.

Pneumatic Components & Systems Manufacturing

Pneumadyne is a manufacturer of standard miniature pneumatic fittings. We can also assist you with design and engineering of custom pneumatic components or full pneumatic control systems.


With a proven understanding of the design, technology and
manufacture of fluid controls, we create solutions that
provide our customers with a competitive advantage.

Request for Quote