DR/EU
In-Line Detonation Flame Arrester for unstable and stable detonations and deflagrations in right angle design with a shock absorber, unidirectional
Características
Función y descripción
Protects Against Deflagrations and Stable and Unstable Detonations
The PROTEGO® DR/EU series of in-line detonation flame arresters Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. represents further development of PROTEGO® Flame Arrester Flame arrester Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. Series DR/ES, which has been successfully used in industry for decades. The device Device A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. protects against deflagrations and stable and unstable detonations. The classic right-angle design offers considerable costs and maintenance Maintenance Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. advantages over the straight-through design.
Main Component – PROTEGO® Flame Arrester Unit
Once a detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave. enters the Flame Arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber Shock absorber A shock absorber is a device that reduces the kinetic energy of a detonation. (1) before the flame is extinguished in the narrow gaps of the FLAMEFILTER® (3). The PROTEGO® Flame Arrester Unit PROTEGO® flame arrester unit The PROTEGO® flame arrester unit is the main component of a flame arrester. It prevents flame propagation. (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® casing FLAMEFILTER® cage The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set. (4). The gap size and number of FLAMEFILTER® discs are by the operating conditions of the flowing mixture ( explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group, pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. , temperature). This device is can be used for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. groups from IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).
Many Individual Certifications
The standard design can be used with an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of up to +60°C / 140°F and an absolute operating pressure Operating pressure Operating pressure is the pressure existing at normal operating conditions within the system being protected. acc. to table 3. Devices with special approval for higher pressures and temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Dimensiones
To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), please use the flow capacity charts on the following pages
| DN | 25 / 1" | 32 / 1¼“ | 40 / 1½“ | 50 / 2“ | 65 / 2½“ | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" |
| a | 125 / 4.92 | 125 / 4.92 | 153 / 6.02 | 155 / 6.10 | 198 / 7.80 | 200 / 7.87 | 250 / 9.84 | 332 / 13.07 | 335 / 13.19 |
| b | 140 / 5.51 | 140 / 5.51 | 183 / 7.20 | 185 / 7.28 | 223 / 8.78 | 225 / 8.86 | 290 / 11.42 | 357 / 14.06 | 360 / 14.17 |
| c | 210 / 8.27 | 210 / 8.27 | 290 / 11.42 | 290 / 11.42 | 365 / 14.37 | 365 / 14.37 | 440 / 17.32 | 535 / 21.06 | 535 / 21.06 |
| c1 | 285 / 11.22 | 285 / 11.22 | 395 / 15.55 | 395 / 15.55 | 500 / 19.69 | 500 / 19.69 | 595 / 23.43 | 750 / 29.53 | 750 / 29.53 |
| d | 150 / 5.91 | 150 / 5.91 | 210 / 8.27 | 210 / 8.27 | 275 / 10.83 | 275 / 10.83 | 325 / 12.80 | 460 / 18.11 | 460 / 18.11 |
| e | 495 / 19.49 | 495 / 19.49 | 600 / 23.62 | 600 / 23.62 | 705 / 27.76 | 705 / 27.76 | 795 / 31.30 | 950 / 37.40 | 950 / 37.40 |
Dimensiones en mm / pulgadas
Selección de materiales para la vivienda
| Design | B | C | D | |
| Housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. | Carbon Steel | Stainless Steel | Hastelloy | |
| Heating jacket (DR / EU-H-(T)-...) | Steel | Stainless Steel | Stainless Steel | |
| Cover with shock absorber | Steel | Stainless Steel | Hastelloy | |
| O-Ring | FPM* | PTFE | PTFE | |
| Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | A | C, D | E | Special materials upon request |
* for devices exposed to elevated temperatures above 150°C / 302°F (T150), gaskets made of PTFE.
The housing and cover with the shock absorber can also be delivered in steel with an ECTFE coating Coating Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. .
Combinación de materiales para la unidad apagallamas
| Design | A | C | D | E |
| FLAMEFILTER® cage | Steel | Stainless Steel | Stainless Steel | Hastelloy |
| FLAMEFILTER®* | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
| Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® set. | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
* the FLAMEFILTER® are also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used.
Special materials upon request
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
Special approvals upon request
Selección de la máxima presión de operación
| Expl. Gr. | DN | 25 / 1" | 32 / 1¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" |
| IIA | Pmax | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23,.3 | 1,6 / 23.3 | 1,5 / 21.7 | 1,2 / 17.4 | 1,2 / 17.4 |
| IIB2 | Pmax | 1,4 / 20.3 | 1,4 / 20.3 | |||||||
| IIB3 | Pmax | 1,6 / 23.2 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,6 / 23.3 | 1,4 / 20.3 | 1,2* / 17.4 | 1,2* / 17.4 |
Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request, * Special flame arrester unit
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
higher operating temperatures upon request
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Modelo y especificación
There are four different designs available:*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)
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”.
