BE/HR-400
Deflagration Flame Arrester, endurance burning proof, End-of-Line
Features
Comprehensive Weather Protection
Weather Hood With Protection Screen Protects the PROTEGO® Flame Arrester Unit Against Environmental Impact, Such as Nesting Animals and Weather Conditions
Safety Against Endurance Burning
Protection against Atmospheric Deflagration and Endurance Burning
Visible Fire Indication by Tilting Weather Hood
in Case of Fire, the Weather Hood Opens, Allowing the Flame to Be Seen From a Far Distance
Chemically Resistant
Centrally Aligned Melting Element Is Resistant to Chemicals
Explosion Group IIA
Endurance Burning Protection Hydrocarbons of Explosion Group IIA (NEC Group D)
Maintenance-Friendly PROTEGO® Flame Arresters
Use of Maintenance-Friendly PROTEGO® Flame Arrester Unit Possible
Function and Description
Protection Against Atmospheric Deflagration and Endurance Burning
The PROTEGO® BE/HR-400 End-of-Line Deflagration Flame Arrester is designed to protect large vessels and process engineering apparatus which are not pressurized. The device provides protection against flame transmission through atmospheric deflagration and stabilized flames which can burn for very long time on the flame arrester element surface, so called endurance burning. Main application area is on in- and out-breathing and vent lines, with the goal to prevent flame transmission caused by endurance burning or atmospheric deflagration from propagating into the vessel or plant.
Main Component – PROTEGO® Flame Arrester Unit
The BE/HR-400 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 stabilized flame burns on the Flame Arrester Element surface, the fusible link (5), located in a center position, will melt and an external counterweight will move the weather hood into the open position. The PROTEGO® Flame Arrester Unit consists of two FLAMEFILTER® discs (4), which are installed in a FLAMEFILTER® casing.
For Explosion Group IIA
The FLAMEFILTER® discs are arranged concentrically and are manufactured in a patented process. The FLAMEFILTER® casing has integrated cooling channels to allow heat to be transferred away from the center of the device. The PROTEGO® BE/HR-400 End-of-Line Deflagration Flame Arrester is available for substances from explosion group IIA (NEC group D).
The standard design can be used for operating temperatures up to +60°C / 140°F.
EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data
Dimensions
To select the nominal size (DN), please use the flow capacity charts on the following pages
| DN | 150 / 6" | 200 / 8" |
| NG | 400 / 16" | 400 / 16" |
| a | 600 / 23.62 | 600 / 23.62 |
| b | 545 / 21.46 | 545 / 21.46 |
| c | 485 / 19.09 | 485 / 19.09 |
Dimensions in mm / inches
Dimensions for deflagration flame arrester with integrated heating coil upon request
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
Special approvals upon request
Material selection for housing
| Design | A | B |
| Housing | Steel | Stainless Steel |
| Weather hood | Steel | Stainless Steel |
| Flame arrester unit | A, B | B |
Special materials upon request
Material combinations of flame arrester unit
| Design | A | B |
| FLAMEFILTER® cage | Steel | Stainless Steel |
| FLAMEFILTER® | Stainless Steel | Stainless Steel |
Special materials upon request
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
other connections upon request
Flow Capacity Chart
The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.
