Why is tri-clamp considered sanitary and other connectors not?

I've read that an advantage with tri-clamp connections are sanitary. I get the impression that they say that camlock and QD are not sanitary.

What is it that makes tri-clamp sanitary and camlock isn't? What is the problem with using camlock on? Especially on the cold side? Wouldn't treating it with starsan be enough?

Topic tubing sanitation homebrew

Category Mac


Tri-Clamp fittings are the only types of fittings which are approved by 3A organization. 3-A SSI is an independent, not-for-profit corporation dedicated to advancing hygienic equipment design for the food, beverage, and pharmaceutical industries.

The reason these fittings are approved is two-fold:

  1. Their design minimizes/eliminates the areas where harmful bacteria can harbor and grow.
  2. They are easy to disassemble and clean allowing.

With regards to 3A certification, it's on a per manufacturer basis. You may be able to purchase tri-clamp fittings from a variety of sources, however, companies that are producing 3A certified products will typically stamp the 3A logo directly on the fittings.

For more information about 3A Organization, you can check out their website here: http://www.3-a.org/


It's the design that makes them different. Tri-clamp / tri-clover are the simplest design, and have been a lab and medical clamp for very long time. While they take a little skill to flip on, they are by far the best style of fitting.

Cam locks are not a sanitary fitting by spec, mainly because of the moving hinge area that can come in contact with the "clean" surface of the receiver when attaching.

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