Protego FA-I-PTFE Deflagration Flame Arrester, In-Line, ATEX

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Concentric design, bidirectional

Explosion Group: IIA1, D /IIA

• Build up of adhesive materials is prevented by the smooth surfaces
• Application especially for corrosive and polymerizing media
• Minimum number of FLAMEFILTER® discs due to patented design
• Service-friendly design
• The modular design enables each individual FLAMEFILTER to be replaced
• Bidirectional operation as well as any direction of flow
• Installation of temperature sensors is possible
• Less soiling of the device lowers service, operating and life-cycle costs
• Minimum pressure loss and associated low operating and life-cycle costs

Function and Description

The in-line deflagration flame arresters type PROTEGO FA-I-PTFE are the latest generation of flame arresters and are distinguished by their unique resistance to adhesive and corrosive media. The use of fluoroplastics as a high-tech housing coating and as solid material for the flame arrester element is unique throughout the world.

When installing the deflagration flame arrester make sure that the distance between potential ignition sources and the location of the installed device, the L/D ratio (pipe length/pipe diameter), does not exceed the value of 50.

The deflagration flame arrester is symmetrical and offers bidirectional flame transmission protection. The arrester essentially consists of two coated housing parts (1) and the PROTEGO flame arrester unit (2) in the center. The PROTEGO flame arrester unit is modular and consists of several FLAMEFILTER discs (3) and spacers firmly held in a FLAMEFILTER casing. The number of PTFE-FLAMEFILTER discs and their gap size depends on the arrester‘s conditions of use.

The deflagration flame arrester PROTEGO FA-I-PTFE can be used for explosion group IIA (NEC group D). The standard design is approved at an operating temperature up to +60°C / 140°F. The maximum allowable operating pressure depends on nominal diameter (DN) and nominal size (NG) and amounts to a maximum of 1.6 bar / 23.2 psi absolute (for DN 100 / 4” and DN 150 / 6” see table 3).

EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.

To select series and nominal size (DN) - nominal width (NG) combination, please use the flow capacity chart.

 Dimensions in mm / inches.

Special materials upon request.

The FLAMEFILTER is also available in the materials Tantalum, Inconel and Copper etc.

Special materials upon request.

Special approvals upon request.

 Other connections upon request.

Additional special devices available upon request.

*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2).