Metric brass fittings

Metric brass fittings DEFAULT

Bulkhead Union – Metric – Brass Series

Categories: Technifit Brass Series, Technifit Bulkhead Fittings


Bulkhead Union – (Metric) – Brass Series

Bulkhead Unions provide two opposing push-to-connect ports with threaded nuts allowing for installation through a panel or partition. These fittings are composed of nickel-plated brass.

Working Pressure217 psi
Temperature Range 4F to 160F
Vacuum Rating28" HG
Body MaterialNickel-Plated Brass
O-RingNBR (Buna-N)
Grip RingStainless Steel
Release RingNickel-Plated Brass
MediaCompressed Air – Inert Gas

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Brass Metric Fittings


We stock a wide variety of metric fittings: BSPP, BSPT, DIN, Komastu and Metric.  We specialize in all types and sizes, and carry an extensive stock of metric items.

Choose the appropriate department to start your selection. Can’t identify the metric fitting you need?  See our extensive thread identification page or call our expert sales people to help you.  


Metric Pipe FittingsBrass Pipe-BSP-BSPT

Our Brass Low Pressure Metric Pipe Fittings are available in BSPP (British Standard Parallel Pipe) and BSPT (British Standard Taper Pipe).  Click on the Link for more information on
identifying, sizing and torquing both BSPP Threads and BSPT Threads.  

These parts may or may not come standard with a Nickel Plating.  

Conversion Fittings can be found in this group that will take a BSPP or BSPT to National Pipe Thread (NPT).


Metric Push-In FittingsMetric Push-In

Our Push-In Fittings are the best elements for connecting pipes and actuators.  Quick and Easy to use, our Push-In Fittings can be re-used thousands of times without affecting the pneumatic and mechanical seal in any way.  It comes in various configurations and guarantees a virtually unlimited, highly
flexible use.

Push-In Sealing

All of these fittings have cylindrical threading and incorporate a O-ring.  The use of an O-ring considerably improves the seal of angled, rough and slightly convex surfaces.  Sealing tape or thread dope is no longer used.  Thread sizes available: M3, M5, M7, M12x1.5, G1/8″, G1/4″, G3/8″ and G1/2″.


Push-In Install

Mounting fittings with an Allen wrench or pneumatic tool.  All elbows and TEEs are rotary.  Drastic reduction in assembly times.
Push-In Assembly

The pipe is easy to assemble by pressing lightly on the pusher ring.  To remove the fitting, merely push radially on the key.  Tube sizes (mm) available: 3, 3.17, 4, 5, 6, 8, 10.12 and 14.


Metric Push-In Universal Threads

Metric Push-in Universal Thread

The unique feature with these fittings is their ability to use the same fittings for NPT, BSPT or BSPP threads.  These fittings also are available for fractional and metric tubing.  Universal threads will endure applications with high impact and vibration.  The universal threads will seal on inclined, concave and convex surfaces.



We are available to help you find the parts that will solve your problem. We also offer special custom made fittings, short run items, and large volume production.

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Metric Fittings

Pneumadyne’s metric fittings feature consistently sharp, single-barb designs that provide a tighter grip and seal than standard multi-barb fittings. Our metric fittings are available in connector, tee, elbow, cross, and coupling configurations and in a wide variety of sizes to meet the needs of your pneumatic system.
See individual product listings below for additional information and specifications.

Metric Fitting Features

  • Precision machined brass or 303 stainless steel fittings
  • Brass fittings are electroless nickel plated for corrosion resistance
  • M3, M5 & M6 threads
  • Numerous thread sizes available
  • Captured O-ring design
  • Solderless joint technology
Straight Connector Fittings

Straight Connector Fittings









Precision Machined Metric Fittings

Pneumadyne’s metric fittings are precision machined from high quality brass and stainless steel materials; brass fittings feature electroless nickel plating for improved corrosion resistance.
The specialized single-barb design of our metric fittings ensures a tight grip and seal on polyurethane tubing without the need for clamps. A smaller shank behind the barb allows polyurethane tubing to relax for permanent installation. (Clamps are recommended for applications over 80 psi that also involve heat or vibration.)
Order today or request a quote for metric fittings. Contact Pneumadyne for more information.



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Fittings metric brass

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How to solder Soldering Techniques for Uponor ProPEX® Lead-free (LF) Brass Fittings

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