Our products

QUICK ACTION LINE BLIND – QLB

DOUBLE BLOCK BLEED & BLIND – D3B

QUICK RUPTURE DISC CHANGER – QDC

QUICK ACTION FILTER CHANGER – QFC

QUICK ACTION LINE BLIND – QLB

DOUBLE BLOCK BLEED & BLIND – D3B

QUICK RUPTURE DISC CHANGER – QDC

QUICK ACTION FILTER CHANGER – QFC
Onis an international group
Since 1979, ONIS has established a significant global presence, offering green, safe, and high-payback blinding solutions for customers in the mid- and downstream petrochemical industries. With a history of innovation spanning over four decades and installations in over 12,000 diverse applications, ONIS is the technology leader in providing positive isolation technologies and is trusted for use in extreme and critical process applications.
QUICK ACTION LINE BLIND
Blind a pipe in minutes with one person and no tools.
The ONIS Quick Action Line Blind is simple and reliable. It can be operated by one person without tools.
The minimum operating time depends on the product size and configuration, with a maximum of 15 minutes.
We provide industry solutions
ONIS WORLDWIDE
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Achieving Zero Leaks in Industry: Which Solutions?
Achieving zero leaks in process industries. Our guide to decarbonization—positive isolation, training, & a robust safety culture.
Gate Valve vs. Line Blind: Key Differences for Pipe Isolation
Discover the key differences between a gate valve and a line blind. Learn why gate valves are essential but not ideal for critical isolation.
Steam Cracking Furnace Safety The Benefits of Quick Positive Isolation
Learn how positive isolation devices can improve steam cracking furnace safety, reducing downtime and minimizing risks.


