Tech Talk - Hydrogen Ready Thread Sealing Solutions for Leak-Free Pipe Connections - Hyfindr Zanetti

Learn about hydrogen ready thread sealants in this episode of Hyfindr Tech Talks. Simone Zanetti from Henkel discusses thread sealants, a crucial technology for joining pipes without leaks, essential in the hydrogen economy. Thread sealants are one of several methods for connecting pipes, alongside radial press fittings and welding. While welding is cheaper but permanent, thread sealants are versatile and can be disassembled, though they are prone to leaks without proper sealing. Zanetti explains the mechanics of thread sealants, highlighting the necessity of filling gaps between threads to prevent leaks, especially under conditions like vibration, temperature changes, and high pressure. Henkel's solution involves an anaerobic adhesive that cures in the absence of oxygen, forming a solid seal that can withstand pressures up to 1000 bar. Despite curing, the connections can be disassembled using heat. The discussion emphasizes the widespread use of threaded connections in hydrogen systems and the importance of reliable sealing for safety and efficiency.

#hydrogen #fuelcell #engineers #technology #tech #sealing #adhesives #sealants #coatings #henkel #technology #loctite

Jump right into the discussion topics:
0:00 Hyfindr Tech Talk
0:25 Welcome, Simone Zanetti
0:53 What are thread sealants?
2:30 Advantages of thread sealants
3:15 How does thread sealants work?
5:30 What can thread sealants do?
6:30 How does thread sealants handle heat?
8:20 Different types of solutions
9:10 Loctites solution
10:05 Product demonstration
14:30 Chemical reaction explained
17:50 Where is it used in the hydrogen economy?
19:00 How much pressure can it handle?
20:30 How leakproof is it?
23:15 Outlook on the future
24:00 Why are your bottles half full?
25:00 Like, subscribe and comment

Executive Summary of Tech Talk Script:

In this episode of Hyfindr Tech Talks, Simone Zanetti from Henkel discusses the importance and functionality of thread sealants in the hydrogen economy. Thread sealants are used to join pipes and ensure they are leak-free, which is critical in applications involving gases like hydrogen. Zanetti, a mechanical engineer with 13 years of experience in sealants, explains that thread sealants are just one of several methods for connecting pipes. Other methods include radial press fittings, which use a tool to press two different-sized pipes together with a rubber seal, and welding, which is cheaper but results in permanent, non-disassemblable joints.

Threaded connections are advantageous because they are easy to assemble and disassemble, making them ideal for maintenance and replacements. However, they are susceptible to leaks if not properly sealed. The discussion delves into the mechanics of thread sealants, where gaps between the threads must be filled to prevent leakage, especially under conditions like vibration, bending, temperature fluctuations, and high pressure. Zanetti highlights that perfect metal-to-metal connections are impossible due to necessary assembly gaps, thus requiring effective sealing solutions.

Henkel’s solution involves an anaerobic adhesive that cures in the absence of oxygen and in contact with metal, forming a solid, plastic-like material that seals the entire threaded surface. This adhesive can withstand temperatures over 200 degrees Celsius and pressures exceeding 1000 bar, making it suitable for high-pressure hydrogen applications. The adhesive remains stable in the presence of oxygen, which is why Henkel’s product bottles are half-filled with air to prevent premature curing.

Zanetti emphasizes the importance of external certification to demonstrate the reliability of these sealing solutions. Henkel collaborates with certification bodies like Kiwa to ensure their products meet rigorous standards. Thread sealants are used across all stages of the hydrogen economy, from production and storage to transport and final use, underscoring their crucial role in maintaining the integrity and safety of hydrogen systems.

Interview partner: Simone Zanetti - Henkel

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In this video following topics are discussed: threaded sealants, advantages of threaded sealants, working of threaded sealants, chemical reaction of sealants, live demo of the product, loctite solution, engineering explained, fuel cell systems, and hydrogen technology.