Uploaded January 2023 | Updated September 2026, 2 hours ago

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In this Silverson Mixing Science animation, we explain where and when Thermosyphon Sealant Systems are needed in use with Silverson In-Line Mixers.

We have covered single and double mechanical shaft seals in another animation which you can view here: youtu.be/OEnnIEwwev0

A thermosyphon sealant system would be used with double mechanical shaft seals. If using a liquid other than water as a sealant fluid, for example oil or glycerine, then a thermosyphon system is often required.

This lubricates and cools the shaft seals by convection.

Watch the animation to find out more about how these systems work.

For more information, please visit: silverson.com

⏱️ Chapters
0:00 Thermosyphon Sealant Systems Basics
0:24 Single vs. Double Mechanical Shaft Seals
0:55 Using Water as a Sealant Fluid
1:23 How Thermosyphon Systems Lubricate and Cool
1:42 Pressurising with Air or Nitrogen
2:13 Correct Positioning and Installation

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