In-line Deflagration Flame Arrester

In the pipeline transportation systems of flammable gases or vapors, preventing flame propagation along the pipeline from causing chain explosions is a crucial safety challenge. The In-line Deflagration Flame Arrester is a core safety device specifically designed for this purpose. Installed directly on the process pipeline, it acts as an efficient "pipeline fire wall", which can reliably stop flames that are developing but have not yet reached the detonation stage (i.e., deflagration). It protects the safety of upstream and downstream equipment and personnel, and is a key link in the intrinsic safety design of pipeline systems.

Core Functions & Working Principle

This flame arrester is installed in series in the pipeline, suitable for pipe sections where flame may propagate, especially within 50 times the pipe diameter near potential ignition sources. Its core adopts a specially structured metal corrugated plate flame arrestor grid. When deflagration occurs in the pipeline, the flame front propagates at subsonic speed and enters the flame arrester. Based on the principles of "wall quenching" and "temperature effect", the narrow channels of the flame arrestor grid quickly conduct and dissipate the heat of the flame to the metal wall, reducing the flame temperature below the ignition point in an extremely short time, thereby effectively quenching the flame. At the same time, it can significantly attenuate the high pressure and high-speed air flow generated by deflagration, preventing the spread of disasters.

Key Product Advantages & Customer Value

Precise & Reliable Deflagration Protection: Specifically designed to stop low-pressure, medium-pressure and high-pressure deflagration, complying with international and domestic authoritative standards such as ISO16852 and GB/T13347. Its bidirectional flame arresting structure can effectively resist flame threats from either direction of the pipeline, providing all-round protection.
Excellent Process Compatibility: The optimized flow channel design achieves extremely low pressure loss and maximum flow capacity while ensuring the highest safety level, minimizing the impact on the normal process flow and energy consumption of the system.
Durable & Easy to Maintain: A variety of materials are available for the flame arrestor grid and shell, including carbon steel, 304/316L stainless steel and Hastelloy, with excellent corrosion resistance and chemical resistance. The modular design makes the flame arrestor grid assembly easy to disassemble, facilitating regular inspection, cleaning or replacement, with low maintenance costs and long service life.
Flexible Adaptation & Complete Standards: The product caliber range covers 1 inch (DN25) to 40 inches (DN1000), meeting various needs from thin pipes to main pipes. Flange connections support various mainstream standards such as ANSI, DIN, HG/T20592~20635-2009, and are equipped with a standard temperature detection port for easy system monitoring and simple integration.
Cost-Effective Safety Solution: Compared with detonation-type flame arresters with higher protection levels, the in-line deflagration flame arrester provides a more cost-effective solution on the premise of meeting the deflagration protection scenarios of most pipelines, making it a wise choice that balances safety and investment.

Typical Application Scenarios

Protection of flammable gas (such as natural gas, hydrogen, biogas) transportation pipelines.
Process pipelines of petrochemical plants, located downstream of equipment that may generate ignition sources (such as compressors, burners).
Pipelines of oil and gas recovery systems.
Solvent recovery and chemical product transportation pipelines.
Any closed pipeline system with deflagration risk where the flame speed does not reach detonation.

Our Commitment & Services

Hubei Wan'an Environmental Protection & Petrochemical Equipment Co., Ltd. is a leading manufacturer focusing on petrochemical safety equipment, holding relevant qualifications and strictly implementing the ISO9001 quality management system. Our in-line deflagration flame arresters have passed strict type tests and performance tests to ensure their reliability and consistency.

We provide:

Professional engineering selection: Provide accurate model recommendations according to your medium characteristics (gas group: IIA, IIB3/C, IIC/B), pipeline conditions, operating pressure and temperature.
Customized manufacturing: Produce according to your specified materials, flange standards and special requirements.
Complete technical delivery: Provide detailed product data, installation guides, and optional third-party test reports.
Reliable global supply: Adopt export-standard packaging to ensure the intact delivery of products to project sites around the world.

Inject deterministic safety into your pipeline system. Choose Wan'an In-line Deflagration Flame Arrester to build a reliable and efficient deflagration protection barrier.

Welcome to contact us for detailed technical parameters and targeted quotations!

About us

Customer services

Sell on waimao.163.com