DR/ES-PTFE

DR/ES-PTFE

In-Line Detonation Flame Arrester
for stable detonations and deflagrations in right angle design with shock absorber, unidirectional

Función y Descripción

The PROTEGO® DR/ES-PTFE series in-line detonation flame arrester is distinguished by ist unique resistance to adhesive and corrosive media. The use of fluoroplastics as a high-tech housing coating and as safety flame arrester element is unique throughout the world. The device represents a further development of PROTEGO® flame arresters DR/ES in a right angle design that have been used and proven for decades in industry. The device protects against deflagrations and stable detonations.

Once a detonation enters the flame arrester, energy is absorbed from the detonation shock wave by the integrated shock Absorber (1) before the flame is extinguished in the narrow channel of the PTFE FLAMEFILTER® (3).

The PROTEGO® flame arrester unit (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® cage (4). The gap size and number of FLAMEFILTER® discs are determined by the operating data parameters of the mixture flowing in the line (pressure, temperature). The detonation arrester 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 and an absolute operating pressure acc. to table 3.

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

Características especiales y ventajas

  • build up of adhesive materials is prevented by the smooth surfaces
  • minimum number of FLAMEFILTER® discs due to the effective shock absorber
  • quick removal and installation of the complete PROTEGO® flame arrester unit and the individual FLAMEFILTER® discs in the cage
  • the modular design enables each individual FLAMEFILTER® discs to be replaced
  • offers protection against deflagrations and stable detonations
  • the right angle design saves pipe elbows
  • ideal for corrosive media
  • less soiling of the device lowers service, operating and life-cycle cost
DR/ES-PTFE
DR/ES-PTFE

Modelo y especificación

There are two different designs available:

Basic in-line detonation flame arrester

DR/ES - PTFE –

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

DR/ES - PTFE - T

Basic in-line detonation flame arrester

DR/ES - PTFE –

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

DR/ES - PTFE - T

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

DR/ES-PTFE

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”.

DR/ES-PTFE
DR/ES-PTFE