Deflagration Flame Arrester, endurance burning proof, End-of-Line
- endurance burning protection for alcohols and hydrocarbons up to explosion group IIB3
- specially developed for sea going vessels but also useful for inland navigation vessels and on shore systems
- weather hood protects against environmental impact (i.e. weather, bird nests, etc.)
- weather hood opens and signals the impact of a flame
- fusible link is resistant against chemicals
- modular design allows replacement of single FLAMEFILTER®
- protection against atmospheric deflagration and endurance burning
- modular design results in low spare part cost
Function and Description
The PROTEGO® BE/HR-E-IIB3 end-of-line deflagration flame arrester was specifically developed for vessels which are not pressurized and store Ethanol or other alcohols. The combustion of alcohol requires a modified flame arrester element design to provide protection against endurance burning. In addition, the device provides protection against atmospheric deflagration. Main application area is on suction and vent lines, for sea going vessels but also useful for inland navigation vessels with the goal to prevent flame transmission caused by endurance burning or atmospheric deflagration.
The PROTEGO® BE/HR-E-IIB3 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 let the spring loaded weather hood move into the open position. The PROTEGO® flame arrester unit consists of two FLAMEFILTER® discs (4), which are installed in a FLAMEFILTER® casing.
The PROTEGO® BE/HR-E end-of-line deflagration flame ar-rester is available for hydrocarbons for explosion group IIB3 (MESG ≥ 0,65 mm) and alcohols.
The standard design can be used for operating temperatures up to +60°C / 140°F.
Type-approved in accordance with ATEX Directive and EN ISO 16852 as well as other international standards. Approved according to IMO MSC/Circular 677 as well as IMO MSC.1/Circular 1324 and 1325.
To select the nominal size (DN), please use the flow capacity charts on the following pages
|DN||80 / 3"||100 / 4"|
|a||353 / 13.90||353 / 13.90|
|b||250 / 9.84||250 / 9.84|
Material selection for housing
|Weather Hood||Steel||Stainless Steel|
|Flame arrester unit||A||A, C|
Material combinations of flame arrester unit
|FLAMEFILTER® cage||Stainless Steel||Stainless Steel|
Selection of explosion group
|MESG||Expl. Gr. (IEC / CEN)||Gas Group (NEC)|
|≥ 0,65 mm||IIB3||C|
Flange connection type
|EN 1092-1; Form B1|
|ASME B16.5 CL 150 R.F.|
Design Types and Specifications
There are two different designs:
End-of-line deflagration flame arrester, basic design
BE/HR-E - –
End-of-line deflagration flame arrester with heating jacket
BE/HR-E - H
Special designs available on 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”.