Protego LH/AD Deflagration Flame Arrester, End Of Line, ATEX

Explosion Group: IIB3, IIC

Special Features and Advantages

• Weather hood with protection screen protects the PROTEGO® flame arrester unit against environmental impact, such as nesting animals and weather conditions
• Available for DN 50/2“- bis DN 800/32“- pipes
• Trouble-free maintenance
• Advanced design for higher operating temperatures
• Provides protection against atmospheric deflagrations
• Low operating and lifecycle costs
• Cost-effective Flame arrester
• Cost-effective spare parts

Function and Description

The PROTEGO® LH/AD end-of-line deflagration flame arrester provides protection against flame transmission through atmospheric deflagration. The device is typically installed on vent lines of 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 vent lines which discharge vapor for a short time period.

The device prevents flame transmission from atmospheric deflagration into the vessel or plant.

The PROTEGO® LH/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. A protection screen is installed between the weather hood and the housing to keep out animals and foreign bodies. The FLAMEFILTER® (4) gap size depends on the device’s intended use. Specifying the operating conditions, such as the temperature, 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® LH/AD series end-of-line deflagration flame arrester is available for substances from explosion groups IIA to IIC (NEC groups D to B). Special certifications for carbon disulfide are available.
The standard design can be used with an operating temperature of up to +60°C / 140°F. Devices with special approval for higher temperatures are available upon request.

EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.

 Dimensions in mm / inches * c are reference values.

Exact measures depend on the flange connection.

Special approvals upon request.

Higher operating temperatures upon request.

Special materials upon request.

Special materials upon request.

 Other types upon request.

Special designs available on request.