DR-UN
Apagallamas en línea a prueba de detonacionesestables y deflagraciones con ángulo de 90º y reductor de choque, unidireccional
Features
Fastest Disassembly and Assembly
of single FLAMEFILTER®
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Spare Parts
cost-effective flame arrester / spare parts
Use of Patented Shock Wave Guide Tube Effect (SWGTE)
low number of FLAMEFILTER® discs due to the patented Shock Wave Guide Tube Effect (SWGTE)
Low Costs
low operating and lifecycle costs
Easy Maintenance
without disassembling of the FLAMEFILTER®
Function and Description
Secure potentially explosive plants against pipe deflagrations and stable detonations
The PROTEGO® DR-UN
in-line detonation flame arrester
In-line detonation flame arrester
A detonation flame arrester is designed to prevent the transmission of a detonation.
are used to secure potentially explosive plants against pipe deflagrations and stable detonations. In the right-angle design and with the PROTEGO® DR/U identical dimensions, the PROTEGO® DR-UN offers considerable
maintenance
Maintenance
Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order.
and cost benefits. Once a
detonation
Detonation
Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997).
enters 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.
, 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).
For Explosion groups IIA to IIB3
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® cage
FLAMEFILTER® cage
The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set.
(4). The gap size and number of FLAMEFILTER® discs are determined by the operating data of the mixture flowing in the line (
explosion
Explosion
Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously.
group, pressure, temperature). This device is approved for explosion groups from IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).
The standard design is approved at an
operating temperature
Operating temperature
Temperature reached when the equipment is operating under design conditions.
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.
up to 1.2 bar / 17.4 psi.
EU conformity according to the currently valid ATEX directive.
Product
Product
Includes equipment, protective systems, devices, components and combinations of these.
Data and Features
Dimensiones
Para seleccionar el tamaño nominal (DN), rogamos usar los diagramas de flujo volumétrico de las páginas siguientes
| DN | 25/ 1" | 32 / 1 ¼" | 40 / 1 ½" | 50 / 2" | 65 / 2 ½" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8“ |
| a | 100 / 3.94 | 125 / 4.92 | 140 / 5.51 | 150 / 5.91 | 160 / 6.30 | 185 / 7.28 | 250 / 9.84 | 300 / 11.81 | 350 / 13.78 |
| b | 125 / 4.92 | 150 / 5.91 | 160 / 6.30 | 165 / 6.49 | 185 / 7.28 | 195 / 7.68 | 250 / 9.84 | 300 / 11.81 | 350 / 13.78 |
| c | 189 / 7.44 | 214 / 8.43 | 259 / 10.2 | 264 / 10.39 | 307 / 12.09 | 317 / 12.08 | 374 / 14.72 | 464 / 18.27 | 707 / 27.83 |
| c1 | 280 / 11.02 | 310 / 12.20 | 370 / 14.57 | 375 / 14.76 | 485 / 19.09 | 495 / 19.49 | 585 / 23.03 | 705 / 27.75 | 1170 / 46.06 |
| d | 149 / 5.87 | 149 / 5.87 | 210 / 8.27 | 210 / 8.27 | 275 / 10.83 | 275 / 10.83 | 325 / 12.80 | 460 / 18.11 | 620 / 24.41 |
| e | - | - | - | - | 326 / 12.83 | 336 / 13.23 | 403 / 15.87 | 475 / 18.70 | 707 / 27.83 |
| xy | 475 / 18.70 | 500 / 19.69 | 570 / 22.44 | 580 / 22.83 | 690 / 27.17 | 700 / 27.56 | 770 / 30.31 | 905 / 35.63 | 1305 / 51.38 |
Dimensiones en mm / pulgadas
* upon request
Selección del grupo de explosión
| MESG | Gr. Expl. (IEC / CEN) | Grupo de gas (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
Selección de la máxima presión de operación
| Expl. Gr. | DN | 25/ 1" | 32 / 1 ¼" | 40 / 1 ½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8“ |
| IIA | Pmax | - | - | - | 2,0 / 29.0 | 2,0 / 29.0 | 2,0 / 29.0 | 2,0 / 29.0 | 1,2 / 17.4 | 1,6 / 23.2 |
| IIB3 | Pmax | 1,4 / 20.3 | 1,4 / 20.3 | 1,4 / 20.3 | 1,4 / 20.3 | 1, 2 / 17.4 | 1, 2 / 17.4 | 1,2 / 17.4 | 1,2 / 17.4 | 1,1 / 15.9 |
Pmax = máxima presión de operación permitida en bar / psi absoluto
Especificación de la máx. temperatura de operación
| ≤ 60°C / 140°F | Tmáx - Temperatura máxima de operación admisible en °C |
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Otros tipos bajo petición
Modelo y especificación
Hay dos modelos diferentes disponibles:Apagallamas en línea básico a prueba de detonacionesDR-UN- – - –
Apagallamas en línea a prueba de detonaciones con sensor de temperatura integrado* como protección adicional contra la combustión a corto plazo.DR-UN-T- –
*Termómetro de resistencia para los equipos del grupo II, categoría (1) 2 (GII cat. (1) 2)
Selección de materiales para la vivienda
| Modelo | B | C |
| Cuerpo | Acero | Acero inox |
| Cubierta con reductor de choque | Acero | Acero inox |
| Junta tórica | FPM | PTFE |
| Unidad apagallamas | A | C, D |
Materiales especiales bajo demanda
Combinación de materiales para la unidad apagallamas
| Diseño | A | C | D | |
| FLAMEFILTER® jaula | Acero | Acero inox | Acero inox | |
| FLAMEFILTER®* | Acero inox | Acero inox | Hastelloy | |
| Espaciador | Acero inox | Acero inox | Hastelloy |
* Other FLAMEFILTER® materials upon request
Materiales especiales bajo demanda
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”.
Applications