931 Deflagration Stable/Unstable detonation Grp: IIA, I

Design in-line deflagration flame arrester
in-line detonation flame arrester
endurance burning flame arrester
Certificate EC prototype test certificate
according guideline 94/9/EC
with ATEX 95 and EN12874
Application gas/air- or vapour/air-mixtures of the explosion groups:
— I (methane) MESG ≥ 1,14 mm
— IIA (D) MESG > 0,90 mm
safe against endurance burning
— I (methane) ≤ 1,3 bar (absolute)
— IIA (D) ≤ 1,1 bar (absolute)
Nom. diameter ½”, ¾”, 1″, 1¼”
Connection Rp to ISO 7-1 (DIN 2999)
BSP to BS 21
NPTF to ANSI B1.20.3
Material
— metal foil element stainless steel
— body/cover stainless steel, carbon steel
Painting optional