DR/ES-PTFE
In-Line Detonation Flame Arrester for stable detonations and deflagrations in right angle design with shock absorber, unidirectional
Características
Función y descripción
High-Tech Coating of the Housing
The PROTEGO® DR/ES-PTFE Series In-Line Detonation Detonation Explosion, die sich mit Überschallgeschwindigkeit fortpflanzt, gekennzeichnet durch eine Stoßwelle. Flame Arresteris distinguished by its 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.
Main Component – PROTEGO® Flame Arrester Unit (PTFE)
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).
For Explosion Group IIA
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. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Dimensiones
To select the nominal size (DN), please use the flow capacity charts on the following pages
| DN | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" |
| a | 153 / 6.02 | 155 / 6.10 | 198 / 7.80 | 200 / 7.87 | 250 / 9.84 | 332 / 13.07 | 335 / 13.19 |
| b | 183 / 7.20 | 185 / 7.28 | 223 / 8.78 | 225 / 8.86 | 290 / 11.42 | 357 / 14.06 | 360 / 14.17 |
| c | 335 / 13.19 | 335 / 13.19 | 420 / 16.53 | 420 / 16.53 | 490 / 19.29 | 590 / 23.23 | 590 / 23.23 |
| c1 | 455 / 17.91 | 455 / 17.91 | 585 / 23.03 | 585 / 23.03 | 680 / 26.77 | 835 / 32.87 | 835 / 32.87 |
| d | 210 / 8.27 | 210 / 8.27 | 275 / 10.83 | 275 / 10.83 | 325 / 12.80 | 460 / 18.11 | 460 / 18.11 |
| e | 685 / 26.97 | 685 / 26.97 | 770 / 30.31 | 770 / 30.31 | 840 / 33.07 | 940 / 37.01 | 940 / 37.01 |
Dimensiones en mm / pulgadas
Selección de materiales para la vivienda
| Design | A |
| Housing | Steel with an ECTFE coating |
| Cover with shock absorber | Steel with an ECTFE coating |
| Gasket | PTFE |
| Flame arrester unit | A, B, C |
Special materials upon request
Combinación de materiales para la unidad apagallamas
| Design | A | B | C |
| FLAMEFILTER® cage | PTFE* | Hastelloy | Stainless Steel |
| FLAMEFILTER®* | PTFE* | PTFE* | PTFE* |
| Spacer | PEEK / ETFE / FEP | PEEK / ETFE / FEP | PEEK / ETFE / FEP |
*electrically conductive
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
Special approvals upon request
Selección de la máxima presión de operación
| DN | 40 / 1 ½" | 50 / 2" | 65 / 2 ½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | ||
| Expl. Gr. | IIA | Pmax | 1.1 / 15.9 | 1.1 / 15.9 | 1.2 / 17.4 | 1.2 / 17.4 | 1.1 / 15.9 | 1.1 / 15.9 | 1.1 / 15.9 |
Pmax = Maximum allowable operating pressure in bar / psi absolut, higher operating pressure upon request
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. |
other connections upon request
Modelo y especificación
There are two 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”.
