Series 6A00 Deflagration Flame Arrestor, Concentric Version, ISO 16852 Certified; 8" Line Size, 16" Element, Explosion Group IIA (D); Maximum Operating Pressure: 120 kPa absolute, Maximum Operating Temperature: =< 60C; 1.4571 Stainless Steel Element Material, 1.4581 Stainless Steel Casing And Rim Material; NBR Gasket Material; Housing Material 1.0619 Steel, ASME 150 RF Flanged End Connections, Two G-1/2" Ports On Each Side Of The Housing; 8.8 Zinc Plated Cap Screw Material; Without Temperature Sensor; Aluminum Name Plate / English Type; Adhesive Label Indicating Short Time Burn Proof Construction; Signal Blue (RAL 5005) Surface Coating