The Low Tolerance Spec

The United Seal & Rubber Co. Blog

How to Avoid Leaks Through Assembles With Threaded Seals

Posted by Virgil Alonso on Thu, Oct 10, 2013 @ 10:10 AM

How to Avoid Leaks through Assembles with Threaded Seals

Leaks can occur anywhere on a system where mating surfaces exist. This concept is commonly associated with large mating surfaces where possible pressure leakages can cause system failure.

Most folks don’t realize that the smaller interconnecting parts can cause leaks, but this occurs on a smaller scale. The thought comes to mind that a little leak here or there won’t cause issues large enough that the system would even see irregularities in performance. But, in the case that there are several small parts that leak and eventually the total leakage becomes noticeable and detrimental to the system.

Threaded seals are designed to mechanically seal threaded fasteners to the main body normally joining two mating surfaces. The threaded grooves provide a track for gases and liquids to flow through until it leaks out. They basically act as a dam in the grooves restricting flow out of the system. They are safe and reliable, self-centering and non-directional. They seal directly against the threads without any special requirements.

Thread sealants work by coating the fasteners before installation. The type of sealant requires a certain amount of time to fully cure before it seals properly. You also must take caution with the type of sealant you use because some are meant to permanently seal and can cause thread damage or assemble tear upon removal.

Threaded seals are completely mechanical and require no cure-time to finish installation. They are removal and can be reused if proper methods for extraction are used.

Threaded Seals also offer savings because they use low cost fasteners and threaded fittings. They are easily assembled and don’t require prep time. Simply push them on and twist with the screw or bolt during threading and tighten the fastener. These are simple to use and a cheap product that can save the system and unexpected leaks.

 

designing-and-producing-high-performance-gasket-or-seal

Tags: Specification Tips