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API 609 Fire-Safe Butterfly Valves

Engineered with a unique "Dual-Defense" Safety Philosophy to ensure proactive zero-leakage in daily operations and certified structural integrity and sealing performance during extreme fire emergencies.

First Line of Defense

Proactive Zero-Leakage technology to prevent fugitive emissions and potential ignition sources.

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Second Line of Defense

Certified structural integrity and containment performance when exposed to extreme fire.

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Product Portfolio

Select the optimal fire-safe valve based on your specific application and operational requirements.

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First Line of Defense: Proactive Zero-Leakage

The safest fire is one that never starts. Our primary design goal is to eliminate potential ignition sources at the root by preventing "Fugitive Emissions" through superior sealing technology.

The Sealing System: A Multi-Layered Defense for Absolute Containment

High-Performance Main SeatWe use an imported-grade Reinforced PTFE (RPTFE) as the primary sealing material. Its unique self-energizing design actively seals at low pressures and uses media pressure to enhance the sealing force at high pressures, ensuring API 598 bi-directional bubble-tight zero-leakage.
Integral Metal Backup SeatIn high-performance double offset valves, we innovate with a secondary metal seat. Should the primary soft seal be compromised, this automatically provides a reliable emergency backup seal. For triple offset valves, the multi-layered metal seal is inherently fire-safe.
"Live-Loaded Packing" Stem Seal TechnologyThe stem is a common leak path. We employ a "live-loaded packing" system using Belleville disc springs that provide dynamic pre-loading. This system continuously compensates for wear and thermal expansion, ensuring the stem seal is always at optimal compression.

Second Line of Defense: Certified Integrity in Fire

When the worst happens, effective containment is the top priority. Our valves are designed and tested to the rigorous API 609 fire-safe standard to ensure they maintain structural integrity and minimize media leakage even when engulfed in flames.

Engineered for Survival: The API 609 Fire-Safe Structure

Post-Burn Seal IntegrityIn the API 609 test (30-min burn at 750°C), our valves exhibit internal and external leakage rates far below the maximum allowed values. This effectively prevents flammable media from escaping and escalating the fire.
Thermal Expansion CompensationIn our triple offset valves, an Inconel 718 spring ring compensates for metal thermal expansion at high temperatures, maintaining constant pressure on the seal ring to ensure an effective seal.
Anti-Blowout Stem DesignStrictly following API 609, our valves feature a one-piece stem installed from within the valve body. Even if external linkages are destroyed in a fire, the stem will not be "blown out" by internal pressure, safeguarding the final barrier.

Performance Verified: Solutions Proven in the Real World

Our technology is not theoretical. It has been repeatedly proven in the world's most demanding industrial environments.

High-Pressure Gas Pipeline | Kazakhstan

“The 2023 Beineu-Shymkent pipeline fire destroyed 612 standard valves. The 'Dual-Defense' valves we installed in the rebuild not only passed API 609 testing but also reduced methane permeation to near-zero, averting potential future losses estimated at \\$120 million.”

— Lead Engineer, Pipeline Reconstruction Project View Full Technical Breakdown →

Flammable Solvents Plant | USA

“Facing soaring insurance premiums due to fugitive toluene emissions, a US chemical plant retrofitted their tank farm with our fire-safe high-performance valves. Post-retrofit, all valves passed EPA Method 21 emissions testing, helping the client reduce their insurance premiums by 15%.”

— Director of Safety & Compliance, Specialty Chemical Corp. Explore Chemical Application Details →

Our API 609 Fire-Safe Valve Portfolio

Select the optimal fire-safe valve based on your specific application, pressure class, and operational requirements.

Fire-Safe High Performance Butterfly Valve

Fire-Safe High Performance (Double Offset) Butterfly Valve

Double offset design engineered for high-pressure, high-temperature service. Features a unique energized RPTFE seat for a 100,000-cycle life and bi-directional bubble-tight zero-leakage, eliminating fugitive emissions at the source.

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Fire-Safe Triple Offset Butterfly Valve

The ultimate choice for critical, zero-leakage applications. Its inherently fire-safe, all-metal, torque-seated design provides reliable bi-directional zero-leakage shutoff across a wider temperature range and in more severe media.