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LH/AD-IIB1-X0

Deflagration Flame Arrester, End-of-Line

  • 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-IIB1-X0 end-of-line deflagration flame arrester was specifically developed for vessels which are not pressurized and store ethanol or other alcohols. and provides protection against flame transmission through atmospheric deflagration. 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.

The PROTEGO® LH/AD-IIB1-X0 end-of-line deflagration flame arrester is available for alcohols and other substances with MESG ≥ 0,85mm.

The standard design can be used with an operating temperature of up to +100°C / 212°F.

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

Design Types and Specifications

Following designs are available:

Deflagration flame arrester, end-of-line, basic design

LH/AD

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”.