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日本語 Learn how positive isolation devices can improve steam cracking furnace safety, reducing downtime and minimizing risks.
ONIS Blog
New articles
Applications
Isolating Pipe Flowing Phenol with Pipe Blind Equipment: A Critical Safety Concern
Learn the safe practices and protocols for isolating pipes flowing phenol. Discover how to protect your assets and people from exposure.
Products
Onis Hi-Safe Explains
Onis Hi-Safe is unique safety system designed to keep personnel safe by eliminating the risk of “human error” that exists with other systems.
A Wide Range of Custom Design Options for ONIS Equipment
At Onis we create custom products that best fit your requirements, find out about the custom design options available.
Fire Safe design by ONIS
In many critical applications fire incidents can cause major disaster. How the Onis Fire safe design help to reducing risks due to fire.
Training
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.
What Is A Blind Flange And What Is It Used For?
What is a blind flange? Its uses and benefits vary, and you’ll find it is sometimes called a blank flange. Learn more here.
Choosing the Right Isolation Solution: Double Block and Bleed Valve vs. Line Blind
Understand the key differences between Double Block, Bleed Valve, and Line Blind devices and learn when to use them.
Spectacle Blind or Line Blind: How to Choose the Right Positive Isolation Device?
Explore the differences between spectacle blind and line blinds. Learn how to choose the right positive isolation device for optimal safety.
Line Blanks and Applications in Piping Systems
Line blanks, also known as “line blinds,” are used to isolate a portion of pipe, usually for maintenance purposes. Overview of different methods.
Isolation levels in piping: The HSG-253 Guidance Explains
Learn about different isolation levels for piping systems & how to choose the right level for safety & preventing accidents.
What is positive isolation?
In pipe industry, there are different methods of isolation including positive isolation. Focus on the best solution: the pipe blinding operation.
News & Events
ONIS Conference at IVS 2026: Evolution of HSG 253 Guidelines to Achieve Net Zero Goals
The ONIS conference at IVS 2026 presents critical insights from 20 Years of HSG 253 analysis and introduces smart piping technologies to reduce operational downtime and mitigate risk in Oil & Gas and chemical industries. Bergamo, 19th May 2026—ONIS, a leading...
ONIS’ Greenhouse Gas Emissions: Report 2023
To gain a clearer understanding of our environmental footprint and minimize its impact, we conduct our first full‑year carbon audit. In collaboration with ADEME and ABC, Bpifrance is conducting this audit as part of the Décarbon’action initiative. The support for...
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.
Industry Decarbonization: ONIS’ Commitment to a Sustainable Future
Learn how ONIS is driving industry decarbonization. Find tailored solutions to reduce environmental impact of the process industry.