BE/HZ

BE/HZ

Deflagration Flame Arrester, endurance burning proof, End-of-Line

Function and Description

For many years the PROTEGO® BE/HZ end-of-line Deflagration flame arrester has been successfully used to protect small 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 outbreathing vent lines, with the goal to prevent flame transmission caused by endurance burning or atmospheric deflagration from propagating into the vessel or plant.

The PROTEGO® BE/HZ consists of a housing (1), a weather hood (2) and the PROTEGO® flame arrester unit. The weather hood is made out of acrylic glass, which will melt when impacted by flames and allow heat to dissipate to the environment. The PROTEGO® flame arrester unit consists of two FLAMEFILTER® discs (3), which are installed in the housing.

The standard design can be used for operating temperatures up to +60°C / 140°F.

Type-approved in accordance with ATEX Directive and EN 12874 as well as other internationally accepted standards.

Features and Advantages

  • weather hood protects against environmental impact (i.e. weather, bird nests, etc.)
  • modular design allows replacement of single FLAMEFILTER®
  • easy maintenance
  • modular design results in low spare part costs
  • protection against atmospheric deflagration and endurance burning
  • low operating and lifecycle cost
  • cost effective protection for small vessels and process engineering apparatus

Dimensions

To select the nominal size (DN), please use the flow capacity charts on the following pages

DN15 / ½"20 / ¾"25 / 1"32 1¼"
a87 / 3.4387 / 3.43114 / 4.49114 / 4.49
b80 / 3.1580 / 3.15100 / 3.94100 / 3.94
c85 / 3.3585 / 3.3590 / 3.5490 / 3.54
DN15 / ½"20 / ¾"25 / 1"32 1¼"
a87 / 3.4387 / 3.43114 / 4.49114 / 4.49
b80 / 3.1580 / 3.15100 / 3.94100 / 3.94
c85 / 3.3585 / 3.3590 / 3.5490 / 3.54

Dimensions in mm / inches

BE/HZ

Material selection for housing

Design AB
HousingSteelStainless Steel
Weather hoodAcrylic glassAcrylic glass
Flame arrester unitAA, B
Design AB
HousingSteelStainless Steel
Weather hoodAcrylic glassAcrylic glass
Flame arrester unitAA, B

Special materials upon request

Material combinations of flame arrester unit

DesignAB
FLAMEFILTER®Stainless SteelHastelloy
SpacerStainless SteelHastelloy
DesignAB
FLAMEFILTER®Stainless SteelHastelloy
SpacerStainless SteelHastelloy

Special materials upon request

BE/HZ

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD

Special approvals upon request

Flange connection type

EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF
EN 1092-1; Form B1
ASME B16.5; 150 lbs RFSF

other connections upon request

Design Types and Specifications

Following designs are available:

End-of-line deflagration flame arrester, basic design

BE/HZ

End-of-line deflagration flame arrester, basic design

BE/HZ

Special designs available on request

BE/HZ

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). Conversion to other densities and temperatures refer to Vol. 1: “Technical Fundamentals”.

BE/HZ
BE/HZ