The manufacturer for tube unions Compact and space-saving connectors With our unions and unique SERTO system, we create smart tube connections that save time and money and can be easily installed even in the tightest spaces. Whether working with tube elements, valves, hoses or accessories – we provide solutions for all industries and applications where liquids and gases are transported, distributed or regulated. A team of 300 employees across seven locations in Europe and Asia develops, produces and markets a wide range of tube union components. The SERTO Group headquarters are located in Frauenfeld, Switzerland. The SERTO Group includes the brands SERTO and EXMAR. Order Products Quickly and Easily Information on Online and Offline Orders Industries and Applications SERTO’s radial fitting system is unique. Unlike conventional designs, the cone is integrated into the nut, enabling a reliable and efficient connection. System Solutions: Customized, Flexible, and Tailored to Your Needs Stainless Steel Quick Couplings The Q50, Q51, and Q52 series redefine coupling design, setting new benchmarks for performance and reliability. In our newsletter, we regularly share successful real-world applications, new products, technical services, and valuable insights into the world of SERTO. Discover how our solutions can help you improve efficiency, reliability, and quality in your design and manufacturing processes. Look forward to practical insights, technical highlights, and the latest developments from SERTO. Stay connected—it’s worth it. SERTO presents Swiss connection technology at InnoTrans When the international rail and mobility industry gathers at InnoTrans in Berlin from 22 to 25 September, SERTO AG from Frauenfeld will also be there. SERTO strengthens its presence in Sweden through a new strategic partnership with Colly Flowtech As of June 2026, Colly Flowtech is the official partner and distributor of the Swiss technology group SERTO for the entire Swedish market. Introducing the Q52 Stainless Steel Quick Coupling – Available Now The Q52 quick coupling is now available directly through the SERTO online shop. Engineers and product developers can access all relevant technical information online, enabling fast and seamless integration into demanding cooling and process applications. SERTO Awarded RINA Certification SERTO has been awarded the prestigious RINA certification. This recognition confirms that EXMAR brand compression fittings meet international standards for use in the maritime industry, underscoring their compliance with stringent requirements for marine applications.