Snap rings fittings are unique to Parker's Transair® Aluminum Pipe System. Found on the 2" (50mm) and 2-1/2" (63mm), a snap ring fitting requires two holes at the end of the pipe to secure the snap ring. Minimal tooling and technical expertise are required for installation. The simplicity of the snap ring fitting reduces the chance of installation error.
Snap ring connection technology is the second of three connection technologies used by Transair Aluminum Pipe Systems. Transair uses three different connection technologies to ensure every diameter is safe, fast, and easy, to install. Just like push-to-connect and clamshell, snap ring is rated for use with compressed air, vacuum and inert gases.
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Push-to-connect is used for 1/2" to 1-1/2" pipe (common use: airdrops to machines and tools)
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Snap ring is used for 2" to 2-1/2" pipe (common use: compressors and air distribution)
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Clamshell for 3" to 6" (common use: compressors and air distribution)
Ten steps for expert installation
By following these simple steps, you will be an expert installer of Transair Snap Ring Fittings. (Full lengths of 2" & 2-1/2" pipe only requires six installation steps while cut lengths require ten steps)
Installing full lengths of 2" & 2-1/2" Transair aluminum pipe
1. Unscrew one end of of the fitting
Take the free nut of the fitting and slide it over the end of the pipe.
2. Place the snap ring in the pre-drilled holes 
All 2" & 2-1/2" pipes come from the factory with the snap ring holes pre-drilled at each end.
Due to the unibody design of the ring, this can be accomplished one-handed.
If you are having difficulties lining the ring with the holes, place the ring farther down the pipe and slide the ring along the pipe until it clips into the holes.
3. Slide the free nut forward until it is stopped by the snap ring 
4. Hand tighten the fitting nut into the fitting body 
5. Tighten the assembly using spanner wrenches
Use the spanner wrenches (6698 05 03) to tighten the fitting nuts 1/2 turn to ensure proper a tight connection.
6. Install Fixing Clips
To ensure the proper stability of the system, we suggest the use of at least two (2) clips per pipe.
- Maximum of 8 feet of space between clips for 10 foot lengths of pipe
- Maximum of 10 feet of space between clips for 20 foot lengths of pipe
Installing cut lengths of 2" & 2-1/2" Transair Aluminum Pipe
By following these simple steps, you will be an expert installer of Transair snap ring fittings. (Full lengths of 2" & 2-1/2" pipe only requires six installation steps while cut lengths require ten steps)
1. Measure and mark the pipe for cutting
2. Cut the pipe
Place the pipe cutter (6698 03 01) on the pipe at the desired cutting mark. Rotate the pipe cutter around the pipe until the pipe is cut.
- After each full turn gently tighten the wheel to tighten the cutting wheel
- DO NOT use a hack or band saw to cut the pipe.
3. Remove debris
Carefully chamfer the outer edge of the pipe using a file. Then, deburr the inner edge of the pipe using the deburring tool (6698 04 02).
4. Drill snap ring holes
Place the drill jig (6698 01 03) on the cut end of the pipe. Using a drill and the Transair drilling bit (6698 02 01) drill a hole on either side of the pipe. Release the drill jig, and deburr the holes using the deburring tool (6698 04 02)
5. Unscrew one end of of the fitting
Take the free nut of the fitting and slide it over the end of the pipe.
6. Place the snap ring in the pre-drilled holes
Due to the unibody design of the ring, this can be accomplished one-handed.
If you are having difficulties lining the ring with the holes, place the ring farther down the pipe and slide the ring along the pipe until it clips into the holes.
7. Slide the free nut forward until it is stopped by the snap ring
8. Hand tighten the fitting nut into the fitting body
9. Tighten the assembly using spanner wrenches
Use the spanner wrenches (6698 05 03) to tighten the fitting nuts 1/2 turn to ensure proper a tight connection.
10. Install Fixing Clips
To ensure the proper stability of the system, we suggest the use of at least two (2) clips per pipe.
- Maximum of 8 feet of space between clips for 10 foot lengths of pipe
- Maximum of 10 feet of space between clips for 20 foot lengths of pipe
Golden rules of safety
- Only Use Transair connectors/accessories with Transair pipe. (mixing Transair with a competitive product will void the 10-year warranty)
- Do not hang external equipment from Transair pipe.
- Only use Transair aluminum pipe for compressed air, vacuum or inert gas applications. (Contact the factory for other media)
- Place Transair pipe in a sleeve if the install will be in dirt or solid masses.
This post was contributed by Guillermo Hiyane, product sales manager, Parker Fluid System Connectors Division.
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