The ZEDOX TSO double eccentric butterfly valve has become a benchmark within industry thanks to its ability to deliver maximum tightness, operational reliability and optimised performance in critical processes. Adding the TSO (Tight Shut-Off) system is a significant improvement over standard configurations, since it makes it possible to reach leakage class A, the highest level of tightness recognised internationally.

What does TSO bring?

TSO is a technical advantage that optimises the internal closing of the valve. Thanks to a soft sealing element, the valve adapts perfectly to the seat, guaranteeing a complete seal even under demanding operating conditions.

This design rules out any possibility of a micro-leak and allows absolute isolation of the fluid, which translates into greater safety, energy efficiency and protection of the environment.

TSO also reduces wear and extends the valve’s service life by minimising the impact between the sealing surfaces. This makes it an ideal solution for processes where reliability is the priority.

Leakage class A: the highest standard of tightness

Leakage class A certification represents the most demanding level under international standards. Only valves able to offer a completely tight shut-off can obtain this classification.

Thanks to TSO, this ZEDOX double eccentric butterfly valve reaches that level, which makes it particularly suitable for critical applications in sectors such as:

• Chemical and petrochemical industry

• Power generation

• Water and industrial fluid treatment

• Processes with hazardous or costly gases or fluids

At Comeval we are committed to always offering the innovation your plant needs. If you would like more information or technical advice, we will be delighted to help.