Model L77E-AF

Flame Arrestor

The LaMOT Valve & Arrestor Model 77E-AF is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arrestors protect low flash point liquids from external sources of ignition providing increased fire protection and safety. 

  • Flame arrestor utilizes multiple-element technology, in order to maximize flame quenching capability while minimizing pressure drop
  • Removable element housing for ease of maintenance
  • Spiral-wound, crimped ribbon flame elements
  • Flame elements made standard with premium 316SS material, reducing corrosion
  • Bi-directional with respect to flow and ignition source
  • Connection Sizes: 2” through 12” 150# ASME, DIN PN10, and PN16 Flanged Connection
  • Housing standard material: Carbon Steel, Stainless Steel
  • Bases standard material: Carbon Steel, Stainless Steel
  • Flame element standard material: 316 Stainless Steel
  • Operational Temperature Range: -4 to 140 ºF (-20 to 60 ºC)
  • For Gases with MESG ≥ 0.65 mm (See figure below for IEC and NEC Gas Groupings)
  • Maximum Operational Pressure: 1.15 bara (16.67 psia) or better, see charts and IOM
  • Certified to ATEX Directive in compliance with EN ISO 16852:2016
  • Thermocouple is required for flame detection per the ATEX code
  • Exterior painting or coating available
  • Drains and instrumentation ports available
  • Available factory installed thermocouples for flame sensing

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