Innovative non integrated seal: Trelleborg 552 Anger-Lock IPS



Trelleborg’s pipe seals operation introduces a new, non-integrated locked-in sealing system to its portfolio, the Trelleborg 552 Anger-Lock™. It is designed for Iron Pipe Size (IPS) PVC pressure pipes and fittings with an Anger bell design, specifically in the US and Latin America. The Trelleborg 552 Anger-Lock™ for IPS can also be used in Koreas – KS (Korean standard), Malaysia and Japan, and other Asian countries using a standard equivalent to the IPS sizes.  

Designed for potable water applications, the Trelleborg 552 seal is a composite combined lip and compression sealing system that is installed inside the socket after the bell has been formed. The unique design comprises a one-piece rubber composite seal, including an Ethylene Propylene Diene Monomer (EPDM) elastomeric sealing element bonded to a flexible thermoplastic retaining ring. This proven design locks the seal firmly in the correct position, eliminating the risk of seal displacement during pipe transportation and joint assembly.

Forsheda 552 Anger-Lock. TrelleborgAlan Guzowski, Managing Director at Trelleborg’s pipe seals operation in the US, says: “By enhancing our product portfolio with our new Trelleborg 552 seal, we can better serve our customers in the IPS market. They will harness the benefits of the high performance, locked-in seal designed specifically for IPS plastic pressure pipes and fittings and add significant value to their own customers.

“In line with our long-standing commitment to developing engineered sealing solutions that cater to the unique needs of different stakeholders throughout the industry, the Trelleborg 552 provides benefits for both installers and pipe manufacturers.”

The innovative seal design requires only low assembly forces, simplifying pipe jointing for installers. Manufacturers of plastic piping can benefit from improved productivity and market-leading technology to ensure their products come with the added value of a robust, locked-in seal.

The design of the Trelleborg 552 enables the absorption of permissible variation in groove geometry and meets or exceeds all current ASTM American standards for pressure, vacuum, deflection and shear load. The Trelleborg 552 Anger-Lock™ product family is certified to ASTM F-477 High Head standards as well as the NSF ANSI 61 standard. The seal also has the UL push on gasket 1285 certification.

Trelleborg uses the highest quality materials and the latest technology to ensure the performance of its pipe seals. The Trelleborg 552 Anger-Lock™ is designed to meet the life expectancy of today’s modern PVC pipe and fittings requirements, making it the ideal solution.

The Trelleborg 552 Anger-Lock™ seal for IPS pipes is now available in sizes ranging from two inches/60mm to 12 inches/318mm and is part of the wider Anger-Lock family of seals. Trelleborg also offers Anger-Lock solutions Trelleborg 584 for C-900 pipes and Trelleborg 576 for metric pipes. These products are an ideal solution for PVC-O pipe producers.

Watertight solutions that last

Whether you are looking to install new pipe systems or repair existing infrastructure, Trelleborg helps you with watertight solutions that last