Flash Back Arrestor SECURTOP 691 TH - Fuel Gas

SECURTOP 691H Flash Back Arrestors

SECURTOP 691 is 3 functions very high flow device, no return valve, flame arrestor , and thermic valves for regulator.


SECURTOP flash back arrestor devices offers a complete range compatible on regulators, torches, or simply on hoses. All installations must be equipped with flash back arrestor systems to guarantee you optimal security. All safety devices of the SECURTOP series are compact and meet the EN ISO 5175-1 standard.


  • To be used close the regulator with very high flow
  • Characteristics : 182,9 m3/h in Oxygene at 25 Bars ; 24,6 m3/h in Acetylene at 1,5 bars and 49,1 m3/h in Propane at 5 Bars
  • Safety device compliant with EN ISO 5175-1; must be used on regulator
  • 3 functions safety devices : NV No return valve; FA Flame arrestor; TV Thermic Valve

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