HAM-LET Let-Lok® Stainless Steel Twin Ferrule Tube Fittings

Over the course of five decades of research and development, Ham-Let has gained an excellent reputation as a leading manufacturer of high pressure instrumentation products.

The Let-Lok® range of stainless steel connectors has been developed by Ham-Let to fill the rapidly increasing demand for tube fittings suitable for high pressure use in environments such as:

  • Petrochemical
  • Electronic
  • Nuclear
  • Fluid power

Ham-Let Let-Lok® stainless steel tube fittings have been carefully manufactured and tested to withstand the demands made of high performance tube fittings, such as high pressure, vacuum, vibration, temperature and impulse.

Ham-let Let-Lok® stainless steel tube fittings are manufactured to exacting tolerances using the most modern and advanced computerised automation.


Let-Lok Tube Fittings (Double Ferrule)


What You Need to Know About LET-LOK Tube Fittings

The HAM-LET Group has been producing its superior, leak-tight LET-LOK® tubing for every kind of system since 1950. Today, the group still leads the market with its brand, which is the most advanced leak-tight tube fitting system available that meets the ever-increasing demand for such fittings especially for industrial standard mechanisms in high-performance, high-pressure and vacuum settings — such as electronics, petrochemicals, fluids, nuclear, power, and other important industrial applications.
LET-LOK® the Leading Brand
The LET-LOK® brand is the ultimate solution for a wide range of industrial applications as they are available in different types of materials. They are also customized to endure high-pressure and severe environments and are the widest range of hi-tech, state-of-the-art industrial-standard mechanisms that efficiently seal and grip tubing. LET-LOK® systems are the result of more than 50 years of energy and time poured in by industry experts in their research, design, development and manufacture.
The Workings of LET-LOK®
LET-LOK® connectors are also very easy to assemble and use. One simply inserts the tube into the full assembly till the tube bottoms-out against the fitting body. The mechanical force resulting from turning the nut clockwise, drives the two ferrules forward between the nut and the fitting body. The back ferrule is then pushed against the front ferrule’s tapered rear and the front ferrule is forced into the tapered mouth of the body. The rear ferrule is then swaged outwardly inwards on the tube while lifting the front ferrule out in order to form a full-faced seal on the tapered surface of the body. Lastly, the 3/4 and 11/4 turn (depending on the size) of the nut from the hand-tight position, ensures tight-proof drive of all the sealing components. This provides additional assurance that the seal will endure high vacuum and high-pressure conditions.
HAM-LET’s Guarantee
The HAM-LET group provides views providing clients with safety as essential. Every LET-LOK® connector has undergone, and passed, serious tolerance tests, including those for vacuum, vibration, temperature, impulse, and high-pressure. Every fitting is also manufactured according to extremely rigorous standards with advanced computerized mechanization and have proved their durability in withstanding all vigorous environments. Additionally, their ability to remain leak-tight resides in their geometry and mechanical advantage.
Clients are provided with a great deal of information and guidelines to ensure they choose the correct LET-LOK® connector for their application. This further ensures supreme and safe outcomes. It is not only important to select connectors consistent with application requirements, but to install, operate and maintain them correctly. For personal safety one also needs to choose a connector whilst considering application details, product ratings, and material compatibility. A good example is that clients in the gas industry are strongly advised to choose tubing with greater wall thickness for added safety and efficiency.
HAM-LET provides clients with the assurance that all LET-LOK® fittings were created by the most skilled craftsmen according to the highest quality-control standards for their safety and guaranteed satisfaction.