end of line breather valve with flame arrester

End of Line Breather Valve with Flame Arrester (FAB Valve)

A combined safety device (FAB Valve) mounted atop storage tanks to provide dual protection. It automatically regulates internal pressure (preventing overpressure and vacuum collapse) while acting as a barrier to prevent external flames from entering and igniting flammable vapors. Compliant with API 2000, ISO 28300, and ISO 16852.

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Description

Ultimate 2-in-1 Protection for Storage Tanks

An End-of-Line Breather Valve with Flame Arrester (often referred to as a FAB Valve) is an advanced, combined safety device designed to be mounted atop atmospheric and low-pressure storage tanks. It seamlessly integrates the structural protection of a Pressure/Vacuum Relief Valve (PVRV) with the fire prevention capabilities of a high-performance flame arrester into a single, compact unit.

Dual-Action Safety Mechanism:

  • Pressure Control: Automatically regulates internal tank pressure by releasing excess overpressure (out-breathing) and allowing air intake (in-breathing) to prevent vacuum collapse and reduce evaporation losses.

  • Fire Protection: Features a robust flame arrester element that acts as an impenetrable barrier, extinguishing external flames and preventing them from entering the tank and igniting internal flammable vapors.

Design & Certifications: Engineered to meet the most stringent safety protocols, the valve mechanism complies with API 2000 and ISO 28300, while the flame arrester is fully certified to ISO 16852 standards.

Additional information

Nominal Size

NPS 2” ~ 12”
Outlet Pressure (Venting)

2 mbar ~ 69 mbar (Weight Loaded), 26 mbar ~ 1034 mbar (Spring Loaded)
Inlet Pressure (Vacuum)

2 mbar ~ 43 mbar (Weight Loaded), 43 mbar ~ 48 mbar (Spring Loaded)
Valve Design Standard

API 2000 / ISO 28300
Arrester Design Standard

ISO 16852
Body Material Grade

A216 WCB, A351 CF3/M, A351 CF8/M (Other materials on demand)
Internal Parts Material

A182 F304, A182 F316/L (Other materials on demand)

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