Explosion Isolation: Preventing a Single Incident from Becoming a Catastrophe

In industrial environments, a single explosion can trigger a devastating chain reaction. Our explosion isolation systems are engineered to prevent this, containing a deflagration to its point of origin and ensuring it does not propagate to interconnected equipment. By installing a protective barrier, you can stop a minor event from becoming a catastrophic secondary explosion that could level an entire facility.

SSI provides comprehensive explosion isolation solutions that are meticulously designed and installed to meet rigorous safety standards, offering an essential layer of protection for your process and personnel.

How an Explosion Isolation System Works

The fundamental purpose of an explosion isolation system is to block the path of flame and pressure, creating a protective barrier between vessels and ducts. These systems work by either closing off the flow of material or by injecting a chemical suppressant, preventing a catastrophic cascade of explosions. Our systems are engineered to activate in milliseconds, ensuring the barrier is in place before the explosion can travel to other parts of the facility.

Passive Explosion Isolation

Passive isolation devices work without an external explosion detection and control system. They are held open by normal process flow and automatically close due to the pressure wave of a deflagration. SSI offers a range of reliable passive isolation solutions, including:

A blue Dual Flap Isolation (DFI) valve, a passive explosion isolation device

Active Explosion Isolation

Active isolation systems are the most robust form of protection. They are triggered by a dedicated explosion detection and control system that instantly creates a barrier, either chemically or mechanically. Our active devices include:

A Standard Rate Discharge (SRD) bottle, an active explosion isolation system
Fike Explosion Isolation Pinch Valve, a fast-acting mechanical barrier for deflagration isolation
Explosion Isolation Valve (EIV), a fast-acting active mechanical barrier

Why Explosion Isolation is an NFPA Requirement

Explosion isolation is not an optional add-on; it is a legal requirement for interconnected equipment. The NFPA 69 Standard on Explosion Prevention Systems requires that any equipment that is connected to a protected vessel must also be protected from flame and pressure propagation. Without proper isolation, a single explosion could lead to a series of secondary explosions, causing far greater damage. Our solutions ensure your facility meets all required compliance standards.

Frequently Asked Questions (FAQs) About Explosion Isolation

What is explosion isolation?

Explosion isolation is a critical safety measure used to prevent an explosion from propagating to other interconnected equipment. It works by creating a barrier (either chemical or mechanical) in the pathway of the flame and pressure, containing the explosion to its point of origin and preventing a more catastrophic secondary explosion.

How does an explosion isolation system compare to explosion suppression?

Explosion suppression is designed to stop an explosion from fully developing within a protected vessel, while explosion isolation is designed to prevent that explosion from spreading to other parts of the facility. Often, both are used together for a comprehensive explosion protection strategy.

What is the difference between active and passive isolation?

Passive isolation systems activate automatically in response to the pressure wave of a deflagration. Active isolation systems, however, are triggered by a separate detection system, which provides a faster and more reliable response. The choice depends on the specific application and safety requirements.

Without explosion protection systems, resulting pressure and flames from a combustible dust deflagration will not only quickly expand within the vessel from which it originates but also will propagate into interconnected equipment.

Why Partner with SSI for Your Explosion Safety?

Choosing the right partner for fire and explosion protection is crucial. SSI has been providing comprehensive explosion protection solutions since 2004. Our customers trust our experience, knowledge, and ethical approach. We offer turnkey solutions from initial assessment to expert installation and ongoing maintenance.

Protect Your Interconnected Equipment. Contact Our Experts Today!

Don’t let a single incident become a facility-wide catastrophe. Partner with Suppression Systems, Inc. to assess your risks and implement robust, code-compliant safety solutions tailored to your unique industrial environment.

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Suppression Systems Inc. (SSI) company logo with red flame icon