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How do you measure barb fittings?

Asked by Teresa Gilkey on November 15, 2021

Categories: Automotive Auto parts


Rating: 4.2/5 (45 votes)

Barb fittings are measured by tube I.D. (inner diameter), while push-quick fittings are measured by tube O.D. (outer diameter). If you already have tubing that you are using, be sure to match the tubing to theappropriate fitting for a tight seal.

How does a barb fitting work? A hose barb is defined asone or more continuous ridges or bumps on a fitting that are used to grip the inside diameter of a tube and seal the connection. As a tube is installed on the fitting, it expands over the barb. Grip and seal occur as the tube tries to relax to its original inside diameter behind the barb.

How do you install a poly pipe fitting? How to Install Poly Pipe Fittings

  1. Cut the required length of tubing from apolyethylene pipe roll with a sharp-bladed utility knife.
  2. Dip one end of a barbed poly fitting in a water-based lubricant.
  3. Forcefully push the fitting into the end of the tubing as you twist the fitting back and forth.

How do you soften plastic tubes? Immerse the coiled tubing into the water. Turn the burner on high to allow the water to boil. Boil the tubing in the water for five to 10 minutes. The heat will soften the tubing, allowing you toreshape it into a long, straight line.

How much psi can a compression fitting hold? Compression fittings are the perfect choice for high pressure applications. In combination with ahigh pressure tubing material like steel, large compression fittings can often be used at pressures in excess of 10,000 psig.