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PROTEGO
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DR/ES

Flame arrester Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. In-Line Detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). Flame Arresterfor stable detonations and deflagrations in right angle design with shock absorber Shock absorber A shock absorber is a device that reduces the kinetic energy of a detonation. , unidirectional

Features

Reduced Number of FLAMEFILTER® Discs
low number of FLAMEFILTER® discs due to shock absorber technology
Fastest Disassembly and Assembly
of single FLAMEFILTER®
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Angle Bodied
saves pipe elbows
Extended Application Range
for elevated operating temperatures and pressures
Spare Parts
cost-effective flame arrester / spare parts
Low Costs
low operating and lifecycle costs
Function and Description

Maintenance and Cost Advantages

The PROTEGO® DR/ES in-line detonation flame arrester In-line detonation flame arrester A detonation flame arrester is designed to prevent the transmission of a detonation. has been used for decades in industrial plant construction because its right angle design offers advantages towards maintenance Maintenance Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. and costs in comparison to most straight designs.

Main component - PROTEGO® flame arrester

Once a detonation enters the device Device A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. , energy is absorbed from the detonation shock wave by the integrated shock absorber (1) before the flame is extinguished in the narrow gaps of the FLAMEFILTER® (3). The PROTEGO® flame arrester unit PROTEGO® flame arrester unit The PROTEGO® flame arrester unit is the main component of a flame arrester. It prevents flame propagation. (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® cage FLAMEFILTER® cage The FLAMEFILTER® cage is a housing for a FLAMEFILTER® set. (4). The gap size and number of FLAMEFILTER® discs are determined by the operating data of the mixture flowing in the line ( explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group, pressure, temperature). This device is approved for explosion groups from IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).

Many Individual Certifications

The standard design is approved at an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. up to +60°C / 140°F and an absolute operating pressure Operating pressure Operating pressure is the pressure existing at normal operating conditions within the system being protected. up to 1.2 bar / 17.4 psi. Devices with special approvals can be obtained for higher pressures and higher temperatures upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Product Includes equipment, protective systems, devices, components and combinations of these. Data and Features

Dimensions

Dimensions in mm / inches

To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), please use the flow capacity charts on the following pages

DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3“100 / 4“125 / 5"150 / 6"200 / 8"
a 125 / 4.92 125 / 4.92 153 / 6.02 155 / 6.10 198 / 7.80 200 / 7.87 250 / 9.84 332 / 13.07 335 / 13.19 425 / 16.73
b 140 / 5.51 140 / 5.51 183 / 7.20 185 / 7.28 223 / 8.78 225 / 8.86 290 / 11.42 357 / 14.06 360 / 14.07 505 / 19.88
c 210 / 8.27 210 / 8.27 290 / 11.42 290 / 11.42 365 / 14.37 365 / 14.37 415 / 16.34 535 / 21.06 535 / 21.06 810 / 31.89
c1 285 / 11.22 285 / 11.22 395 / 15.55 395 / 15.55 500 / 19.69 500 / 19.69 595 / 23.43 750 / 29.53 750 / 29.53 1230 / 48.43
d 150 / 5.91 150 / 5.91 210 / 8.27 210 / 8.27 275 / 10.83 275 / 10.83 325 / 12.80 460 / 18.11 460 / 18.11 620 / 24.41
e 495 / 19.49 495 / 19.49 600 / 23.62 600 / 23.62 705 / 27.76 705 / 27.76 795 / 31.30 950 / 37.40 950 / 37.40 1435 / 56.50

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Selection of max. operating pressure

Expl. Gr.DN25 / 1"32 /  1¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8“
IIAPmax4,0 / 58.04,0 / 58.04,0 / 58.04,0 / 58.02,9 / 42.12,9 / 42.12,0 / 29.02,0 / 29.02,0 / 29.01,2 / 17.4
IIB3Pmax3,0 / 43.53,0 / 43.52,0 / 29.02,0 / 29.02,0 / 29.02,0 / 29.01,5 / 21.71,4 / 20.31,4 / 20.31,1 / 20.3

Specification of max. operating temperature

≤ 60°C / 140°FTmaximum allowable operating temperature in °C
-Designation

Flange connection type

EN 1092-1; Form B1
ASME B16.5 CL 150 R.F.

Material selection for housing

DesignBCD
Housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. SteelStainless SteelHastelloy
Heating jacket (DR / ES-H-(T)-...)SteelStainless SteelStainless Steel
Cover with shock absorberSteelStainless SteelHastelloy
O-RingFPM*PTFEPTFE
Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. AC, DE

Material combinations of flame arrester unit

Design ACDE
FLAMEFILTER® cageSteelStainless SteelStainless SteelHastelloy
FLAMEFILTER®*Stainless SteelStainless SteelHastelloyHastelloy
Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se Stainless SteelStainless SteelHastelloyHastelloy
Applications

Floating-Roof Storage Tanks

Processing Facilities

Vapor Combustion Systems