We’ll source any pneumatic
component you need,
even if it isn’t in our catalog!

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Metal Fittings

Metal fittings provide many benefits when used in pneumatic industrial applications. Depending on the metal materials used, Polyconn’s pneumatic fittings can be corrosion-resistant and durable. As metal fittings display high strength compared to other materials, they are well-suited to applications requiring an ability to restrict movement and stand firm.


Compression Fittings

Our 316 stainless steel compression fittings consist of four parts: body, front ferrule, back ferrule, and nut. The two-ferrule design compensates for any tolerances in tube O.D., wall thickness, material hardness, and maintains leak-tight connections. Our extensive inventory of stainless-steel metal compression fittings includes union crossesmale elbowsTee fittingsnuts, and more.

D.O.T. Products

Our DOT products are designed to meet exacting Department of Transportation (D.O.T.) federal standard specifications, our brass push-in fittings have no assembly required and are designed to minimize wear while keeping tube and hose locked in place. Our D.O.T. approved metal fittings inventory includes union tubeselbow swivelsunion teesmale or female connectors, and other options for any application that must meet D.O.T. requirements.

Hose Barb Fittings

Polyconn carries a wide variety of Barb Fittings and Mini Fittings.  Our brass hose barb fittings are made of 360CA brass. Typically found in industrial markets including air and water, brass barb fittings are well-suited to low-pressure applications, particularly involving rubber hose, thermoplastic hose, and sometimes polyurethane tubing. While the pressure rating varies based on the hose or tubing in use, our hose barb fittings have a working pressure of 150 PSI.

Pipe Fittings

Polyconn offers two types of metal pipe fittingsbrass and nickel-plated brass pipe fittings or stainless steel pipe fittings.
  • Brass and nickel-plated brass pipe fittings are made of extruded CA 36000 and meet SAE, ASME, and ASA requirements. Designed to use with brass, copper, or iron pipe, our brass and nickel-plated brass pipe fittings have a pressure rating of 1000 PSI.
  • Stainless steel pipe fittings are made of 304 stainless steel for air, water, oil, natural gas, and steam. The stainless steel pipe fitting maximum pressure is 150 PSI at 72°F.

Push-to-Connect Fittings

We stock two types of metal push-to-connect fittingsnickel-plated brass push-in fittings and stainless steel push-in fittings. Both are suited to pneumatic applications like robotics, conveyer systems, or any system requiring the transfer of compressed air or liquids compatible with the materials of manufacture. Our electroless nickel-plated push-in fittings are made from forged brass or machined bar stock. Stainless steel push-in fittings are made from forged or machined bar stock 316 stainless steel.

Metal Fittings Materials

Polyconn sources metal fittings made from highly durable and corrosion-free metals to extend the life of your pneumatic application. Some of our materials include:
  • Stainless Steel
  • Brass
  • Nickel-Plate
  • And more.

Why Choose Polyconn?

Since the 1980s, Polyconn has been a consistent and reliable source of basic fluid power components for pneumatic connections and control devices. When you need a hard-to-find pneumatic component, our experts have the experience and capability to find the metal fitting or pneumatic part that best fits your application. We have served a wide range of industries, including:
  • Pneumatic Industrial
  • Farming
  • Robotics
  • And more.

We will Source any Pneumatic Component you Need

Our metal fittings have the durability, strength, and corrosion resistance to handle any application. If you do not see the size or type of fitting you are looking for, contact us today.   We will source any pneumatic component you need, even if it is not listed on our website.  Our mission is to provide you with the uncompromising quality and service you deserve.