Solderless Fittings

Main ideas / concepts

• Solderless joints can be made using mechanically formed fittings, specifically a mechanically formed T joint created by tools that:
  • Pull an outlet from an existing tube run.
  • Notch and dimples the branch tube.
  • Produce a joint that is ready to be braced.
• Solderless (solder-free) fittings are increasingly common in the industry and come in two main types:
  1. Push-connect fittings
  2. Press-connect fittings

Types of solderless fittings (and key differences)

Push-connect fittings

• Easy to use
• Can be attached without tools
• Some models are disassemblable and reassemblable

Press-connect fittings

• Permanent once assembled
• Require a special tool for installation
• Not intended to be taken apart and reused

Preparation methodology (applies to both types)

• Cut the tubing to the correct length.
• Ream (smooth/clean the inside) and clean the tubing properly before attachment.
• Chamfer/sharpen the tube end (noted as “chamfer the outside”):
  • Chamfering helps prevent damage to the O-ring seal when the tube is inserted.
• Ensure proper insertion depth:
  • Tube insertion depth is critical.
  • Use a depth gauge to measure and mark the tube at the correct depth.
  • The depth mark may vary by application, but must be visible for inspection.

Installation instructions (by fitting type)

Push-connect installation

• Insert the tube fully into the fitting:
  • Push the tube all the way in.
  • Ensure it makes good contact with the bottom of the fitting’s cup.
• For fittings designed to be disassembled/reassembled:
  • The manufacturer provides a plastic tool:
    • Slip it over the tube.
    • It presses against the fitting sleeve.
    • This releases an internal gripping ring, allowing removal.

Press-connect installation

• After inserting the tube into the fitting:
  • Place the press tool’s jaws over the fitting.
  • Press/trigger the tool to compress.
  • The tool performs the work automatically.
• Installation note:
  • Place the jaws correctly; it’s stated that setup becomes easier with practice.

Speakers / sources featured

• No specific speakers or named sources are identified in the provided subtitles (aside from background “[Music]”).