Caractéristiques
Fonction et description
Protection Against Atmospheric Deflagrations
The PROTEGO® BE/AD End-of-Line Deflagration Flame Arrester provides protection against atmospheric deflagrations. The device is usually installed on vent lines of small vessels and plant equipment which are not pressurized. For safe application, it is important that an endurance burning situation can be excluded. So typically, it is installed on vents lines which discharge vapor for a short time period. The device is the ideal solution for preventing flame transmission from atmospheric deflagration into the vessel or plant.
Main Component – PROTEGO® Flame Arrester Unit
The PROTEGO® BE/AD consists of the housing (1), a weather hood (2), and the PROTEGO® Flame Arrester Unit (3). The device is equipped with a metal weather hood. The FLAMEFILTER® gap size will depend on the device’s intended use.
For Explosion Groups IIA to IIC
Specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, enables PROTEGO® to select the best End-of-Line Deflagration Flame Arrester for your application. The PROTEGO® BE/AD Series End-of-Line Deflagration Flame Arrester is available for substances from explosion groups IIA to IIC (NEC groups D to B). The standard design can be used with an operating temperature of up to +60°C / 140°F. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Dimensions
| DN | 15 / G ½" | 20 / G ¾" | 25 / G 1" | 32 / G 1¼" | 40 / G 1½" | 50 / G 2" |
| a | 116 / 4.57 | 116 / 4.57 | 116 / 4.57 | 116 / 4.57 | 200 / 7.87 | 200 / 7.87 |
| b | 80 / 3.15 | 80 / 3.15 | 85 / 3.35 | 85 / 3.35 | 150 / 5.91 | 150 / 5.91 |
Dimensions in mm / inches
Material selection
| Design | B | C | |
| Housing | Steel | Stainless Steel | Hastelloy |
| Weather Hood | Stainless Steel | Stainless Steel | Stainless Steel |
| FLAMEFILTER® | Stainless Steel | Stainless Steel | Hastelloy |
Special materials upon request
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| ≥ 0,65 mm | IIB3 | C |
| < 0,5 mm | IIC | B |
Special approvals upon request
Specification of max. operating temperature
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | Designation |
higher operating temperatures upon request
Type of connection
| Pipe thread DIN ISO 228-1 | DIN |
other types of thread upon request
Design Types and Specifications
Following designs are available: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”.
