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Detonation Flame Arrester - Group C & D Gases

Model 7758A

Detonation Flame Arrester - Group C & D Gases

The Groth Model 7758A Deflagration & Detonation Flame Arrester inhibits flame propagation in gas piping systems. The design makes it ideal to protect liquid storage tanks containing both NEC Group D and Group C vapors (IEC Class IIA and IIB1 through IIB3 vapors) with a Maximum Experimental Safe Gap (MESG) equal to or greater than 0.026" [0.65 mm].

Specifications

Size: 2" (DN50) x 4" (DN100) through 12" (DN300) x 30" (DN750)

Material: Housing standard material: carbon steel, stainless steel, aluminum • Flame element standard material: stainless steel

Pressure: Pre-ignition system pressure up to 19.7 psia (1.36 bara)

Certification: Certified to ATEX Directive in compliance with EN ISO 16852:2010 Certificate #: IBExU12ATE X2170 X (Element Sizes 4”, 6”, 8” and 12” Unstable detonations) • Certified to ATEX Directive in compliance with EN ISO 16852:2010 Certificate #: IBExU12ATE X2171

Temperature: Pre-ignition system temperatures -4 to 140°F (-20 to 60°C)

Features

• In-line or end-of-line deflagrations
• Stable detonations
• Unstable detonations (element sizes <=12”)
• Bi-directional with respect to flow and ignition source
• Wafer mesh element is standard
• Low pressure drop with multiple element sizes available for each flange size

 

Options

• Available in carbon steel, stainless steel, Alloy C276, and other materials
• Sensor ports
• Large inspection and cleaning ports
• Swing bolts for fast element removal
• Factory installed thermocouples for flame sensing

Dimensions

Detonation Flame Arrester - Group C & D Gases

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