Maintenance Solutions

Quick line blinding

Quick action line blinds in a nutshell

We design and manufacture innovative blinding technology used to isolate process piping.


Product range

Onis offers patented industrial piping solutions, allowing a single person to safely perform pipe opening operations in minutes without tools. Our products eliminate the need for piping bolting, focusing on mechanized pipe flange spreading.

Our industrial piping solutions are set in the factory for all lifetime and guarantee a perfect sealing of ONIS piping devices. 

Company info

In 1979 our company was founded by Edmond Onis who invented our first quick-action line blind for a petrochemical company in Berre l’Etang, France. The invention was extremely successful as it enabled operators to isolate equipment more safely and within a small fraction of the time compared to conventional blinding equipment. For more than 40 years, ONIS has been innovating on these types of products to deliver customized solutions to more than 450 plants worldwide.


Onis can pride itself on:
Quick, Reliable, Effective products designed to protect people and environment !

  • Onis quick action piping solutions are engineered and customized for critical process applications.
  • Onis is focused on the relentless use of customer feedback to constantly improve our service and product offerings.
  • ONIS Quality system according to ISO 9001-2015 certified by SGS ONIS Quality system according to PED 2014/068/EU Certified by SGS TUV SAAR ONIS certified according to TR CU 32.
  • Since 1979, providing customers innovative solutions for blinding process piping with better, faster, and safer equipment!
  • Focused on providing safe, cost-effective solutions to improve responsiveness and efficiency while also being better for the environment.

Reduce downtime

Your maintenance operations times are reduced, you save money while increasing a significant amount of production time.


Onis Line Blind prioritizes safety and puts a strong emphasis on minimizing human error.

No Tools

All ONIS equipment is entirely tailor-made and are designed so that no tools are needed to handle them. 

Pay back

Our goal is to ensure a return on investment within one to two years, while also minimizing your OPEX for the upcoming decades due to low maintenance requirements.


Used by the world’s leading companies throughout all major industries

Green design

he protection of the environment is a top priority in our modern era, and at Onis Line Blind, we are committed to minimizing the environmental impact of your maintenance operations.