LH/EB
Deflagration Flame Arrester, endurance burning proof, End-of-Line
Features
Protección integral contra la intemperie
La caperuza con pantalla de protección protege la unidad apagallamas PROTEGO® frente a impactos ambientales, como nidos de animales y condiciones meteorológicas adversas
Indicación visible de fuego mediante inclinación de la caperuza protectora contra la intemperie
En caso de fuego, la caperuza se abre, permitiendo que la llama sea visible desde gran distancia
Resistente a productos químicos
El elemento fusible, alineado en posición central, es resistente a los productos químicos
Seguridad contracombustión prolongada
Protección contra deflagraciones atmosféricas y combustión prolongada
Minería
Certificados para minería disponibles
Mezclas de metano/aire
El apagallamas a prueba de deflagraciones más eficiente para mezclas metano/aire
Function and Description
Protection Against Atmospheric Deflagration and Endurance Burning of Methane/Air Mixtures
The PROTEGO® LH/EB End-of-Line Deflagration Flame Arrester is used to protect process engineering apparatus and vessels which are not pressurized and process Methane/Air mixtures. The device provides protection against flame transmission through atmospheric deflagration and stabilized flames which can burn for a very long time. This device is specifically applied to vent lines of decommissioned underground mines. Other areas of application are biogas, landfill gas and sewage gas. The device is installed on suction and vent lines, with the goal to prevent flame transmission caused by endurance burning or atmospheric deflagration propagating into the vessel or plant.
Main Component – PROTEGO® Flame Arrester Unit
The PROTEGO® LH/EB consists of a housing (1), a weather hood (2) and the PROTEGO® Flame Arrester Unit (3). During normal operation, the metal weather hood is in a closed position. If a flame burns on the Flame Arrester element surface, the fusible link (5), located in a center position, will melt and an externally located weight will move the weather hood into the open position. The PROTEGO® Flame Arrester Unit consists of a FLAMEFILTER® (4), which is installed in a FLAMEFILTER® casing.
For Explosion Group IIA1 - Methan
The PROTEGO® LH/EB Series End-of-Line Deflagration Flame Arrester is available for substances for explosion group IIA1 - methane (former designation Expl.gr. I).
The standard design can be used with operating temperature of up to +60°C / 140°F.
Special certificates for mining are available and the device is type-approved according to ATEX Directive and EN ISO 16852 as well as other international standards.
Product Data
Dimensiones
To select the nominal size (DN), please use the flow capacity charts on the following pages
| DN | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12" | 350 / 14" | 400 / 16" |
| NG | 400 / 16" | 400 / 16" | 400 / 16" | 400 / 16" | 400 / 16" | 400 / 16" |
| a | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 |
| b | 340 / 13.39 | 340 / 13.39 | 340 / 13.39 | 340 / 13.39 | 340 / 13.39 | 340 / 13.39 |
| c | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 | 600 / 23.62 |
| d | 350 / 13.78 | 350 / 13.78 | 350 / 13.78 | 350 / 13.78 | 350 / 13.78 | 350 / 13.78 |
Dimensiones en mm / pulgadas
Selección del grupo de explosión
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 1,14 mm | IIA1 (I)* | - |
*former designation Expl.gr. I
Special approvals upon request
Selección de materiales para la vivienda
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Weather hood | Steel | Stainless Steel |
| Flame arrester unit | A, B | B |
Special materials upon request
Combinación de materiales para la unidad apagallamas
| Design | A | B |
| FLAMEFILTER® cage | Steel | Stainless Steel |
| FLAMEFILTER® | Stainless Steel | Stainless Steel |
Special materials upon request
Tipo de bridas de conexión
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other types upon request
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”.
