Quick Action Line Blind - Large dimension WE DESIGN AND MANUFACTURE innovative blinding technology used
to safely isolate process piping.
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A Onis quick action line blind on a pipeline WE DESIGN AND MANUFACTURE safe, quick-action blinds to isolate process piping. One person. Simple operation. Zero tools. SCROLL Contact us Downloads Onis quick action line blind on an upstream platform. Efficient mechanical systems for piping Demonstrated to provide up to 95% reduced downtime compared to conventional isolating equipment. SCROLL Contact us Downloads 3 Onis line blind valve on manifolds. WE DESIGN AND MANUFACTURE quick, safe, and reliable equipment for piping operation. SCROLL Contact us Downloads Series of Onis QLB PLB range small size sideview WIDE APPLICATION RANGE INCLUDING EXTREME
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ONIS an international group

Since 1979, ONIS has had a large global footprint focused on delivering green, safe, high payback blinding solutions for customers in mid and downstream petrochemical industries. With products that have been innovated for more than forty years and installed in more than 12,000 different applications, ONIS is the technology leader for providing positive isolation technologies and is trusted for use in extreme, critical process applications.


Enables the ability to blind a pipe in minutes with only one person and zero tools.

The simple and reliable ONIS quick Action Line Blind can be operated easily by only one person and without tools.

Minimal operating time ranging from 1 to 15 minutes maximum depending on the product size and configuration.

Comparison of an ONIS line blind versus a traditional blinding operation

We provide Industry solutions

ONIS worldwide

Years experience

Since 1979

Customer support offices


Bases installed