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DA-E

Eccentric In-Line Detonation Flame Arrester
for stable detonations and deflagrations in a straight through design, bidirectional

Función y Descripción

The PROTEGO® DA-E series of detonation arresters is distinguished by its eccentric housing shape. When condensate accumulates within the PROTEGO® flame arrester unit, the design enables the liquid to drain without collecting large amounts in the housing. The eccentric design of the device has decisive advantages in comparison to the classic flame arresters when pipes are installed close to ground level.

The detonation arrester is symmetrical and offers bidirectional flame arresting. The arrester essentially consists of two housing parts (1) and the PROTEGO® flame arrester unit (2) in the center. The PROTEGO® flame arrester unit consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® cage. The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s conditions of use. By indicating the operating parameters such as temperature, pressure and explosion group and the composition of the fluid, the optimum detonation arrester can be selected. The PROTEGO® DA-E series of flame arresters is available for explosion groups IIA to IIB3 (NEC Group D to C MESG ≥ 0.65 mm).

The standard design can be used up to an operating temperature of +60°C / 140°F and an absolute operating pressure acc. to table 3. Devices with special approval can be obtained for higher pressures and higher temperatures upon request.

Type-approved in accordance with the current ATEX Directive and EN ISO 16852 as well as other international standards.

Características especiales y ventajas

  • eccentric design prevents the collection of condensate
  • the modular design enables each individual FLAMEFILTER® discs to be replaced
  • easy maintenance with quick removal and installation of FLAMEFILTER® discs
  • eccentric design allows installation in close to ground level
  • bidirectional operation as well as any flow direction and installation position
  • protects from deflagration and stable detonation
  • installation of temperature sensors possible
  • cost efficient spare parts
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Modelo y especificación

There are three different designs available:

Basic design of the detonation arrester

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In-line detonation flame arrester with integrated temperature sensor* as additional protection against short time burning of one side

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Detonation arrester with two integrated temperature sensors* as additional protection against short time burning from both sides

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Basic design of the detonation arrester

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In-line detonation flame arrester with integrated temperature sensor* as additional protection against short time burning of one side

DA-E- T

Detonation arrester with two integrated temperature sensors* as additional protection against short time burning from both sides

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Additional special arresters upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)

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Diagrama de flujo volumétrico

Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.

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