On December 1, 2025, the requirements of the revised Technical Instructions on Air Quality Control (TA-Luft 2021) came into full effect. The amendment tightens the requirements for the tightness of fittings in plant areas where volatile emissions can occur.
In future, operators will be obliged to ensure that shut-off and control devices used – including ball valves, butterfly valves, and similar designs – comply with the limit values defined in TA-Luft. Proof must be provided using recognized test methods such as ISO 15848-1.
During maintenance work or when replacing components, it must also be checked whether the valves used have the required tightness qualification. The stricter regulations are intended to further reduce diffuse emissions and thus improve environmental protection at industrial plants in the long term.
Valve manufacturer Bray adapted its product portfolio to the new requirements at an early stage. In addition to the specifications of TA-Luft 2021, the Cx Line also complies with international standards such as ISO 15848-1, NE 167, and NE 19. The series was developed for applications in the chemical industry where particularly high tightness requirements apply.
Bray highlights another advantage: high stock availability at its Willich site, which enables short-term delivery for projects or spare parts requirements. In addition, the company supports operators in evaluating existing valves and selecting suitable TA-Luft-compliant solutions. With the Cx Line, Bray emphasizes its commitment to providing standard-compliant and future-proof valve technology for demanding industrial applications.
