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PROTEGO
Excellence in Safety and Environment

DA-SB

In-Line Detonation Flame Arresterfor stable detonations and deflagrations in a straight through design with shock tube, bidirectional

Features

Use of Patented Shock Wave Guide Tube Effect (SWGTE)
low number of FLAMEFILTER® discs due to the patented Shock Wave Guide Tube Effect (SWGTE)
Optimized Performance
due to the patented Shock Wave Guide Tube Effect (SWGTE)
Extended Application Range
for elevated operating temperatures and pressures
Spare Parts
cost-effective flame arrester / spare parts
Low Costs
low operating and lifecycle costs
Maintenance-Friendly PROTEGO® Flame Arresters
use of maintenance Maintenance Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. -friendly 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. possible
Temperature Sensors Possible
use of temperature sensors for G 1½ and G 2 is possible
Bi-Directional Flame Transmission
proof design
Differnt Series
allow increase of FLAMEFILTER® size for given flange connection resulting in lower pressure drop across 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.
Function and Description

Minimal Pressure Losses with Maximum Safety

The in-line detonation flame arresters Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. type PROTEGO® DA-SB are the newest generation of flame arresters Flame Arresters A flame arrester, deflagration arrester, or flame trap is a device or form of construction that will allow free passage of a gas or gaseous mixture but will interrupt or prevent the passage of flame. . Based on flow and explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. dynamic calculations as well as decades of field tests, a product Product Includes equipment, protective systems, devices, components and combinations of these. line was developed that offers minimum pressure losses with maximum safety. The flame arrester uses the Shock Wave Guide Tube Effect (SWGTE) to separate the flame front and shock wave. The result is an in-line detonation arrester without a classic shock absorber Shock absorber A shock absorber is a device that reduces the kinetic energy of a detonation. , which minimizes the use of FLAMEFILTER® discs.

Main component - PROTEGO® flame arrester

The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable detonations. The arrester essentially consists of two 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. parts with an integrated shock tube (1) and the PROTEGO® flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. (2) in the center. The PROTEGO® flame arrester unit is modular and consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® casing FLAMEFILTER® casing Enclosure for FLAMEFILTER® including insert rings. . The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s intended use.

Suitable for All Explosion Groups

By specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, the optimum detonation arrester can be selected from a series of approved devices. The PROTEGO® DA-SB flame arresters are available for all explosion groups. The standard design can be used with an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of 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 bar / 15.9 psi. Numerous devices with special approval for higher pressures (see table 3) and higher temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data and Features

Dimensions

To select nominal width/ 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. (NG/DN) - combination, please use the flow capacity charts on the following pages
Additional nominal width/nominal size (NG/DN) - combinations for improved flow capacity upon request

standard
NG150 / 6"150 / 6"200 / 8"300 / 12"400 / 16"500 / 20"600 / 24"700 / 28"800 / 32"1000 / 40"1200 / 48"1600 / 64"
DN≤50 / 2"65, 80 /   2½“, 3"≤100 / 4"≤150 / 6"≤200 / 8"≤250 / 10"≤300 / 12"≤350 / 14"≤400 / 16"≤500 / 20"≤600 / 24" ≤800 / 32"
a285 / 11.22285 / 11.22340 / 13.39445 / 17.52565 / 22.24670 / 26.38780 / 30.71895 / 35.241015 / 39.961230 / 48.431455 / 57.281915 / 75.39
bIIA-P1,1388 / 15.28388 / 15.28476 / 18.74626 / 24.65700 / 27.56800 / 31.50*1000 / 39.37*1200 / 47.241400 / 55.121600 / 62.991800 / 70.872200 / 86.61**
IIA-P1,4-X3400 / 15.75400 / 15.75488 / 19.21626 / 24.65700 / 27.56800 / 31.501000 / 39.371200 / 47.241400 / 55.12
IIB3-P1,1400 / 15.75412 / 16.22500 / 19.69650 / 25.59724 / 28.50824 / 32.441000 / 39.371200 / 47.241400 / 55.121600 / 62.991800 / 70.87
IIB3-P1,4-X3412 / 16.22412 / 16.22512 / 20.16650 / 25.59724 / 28.50824 / 32.441000 / 39.371200 / 47.241400 / 55.12
IIC-P1,1400 / 15.75400 / 15.75500 / 19.69638 / 25.12700 / 27.56788 / 31.021000 / 39.37***1200 / 47.24***1400 / 55.12***
c500 / 19.69500 / 19.69520 / 20.47570 / 22.44620 / 24.41670 / 26.38720 / 28.35770 / 30.31820 / 32.28950 / 37.401050 / 41.341250 / 49.21

Dimensions in mm / inches

special sizes up to NG 2000/80“, DN 1000/40“ available

* dimension b only for P1.4 / 20.3
** dimension b only for P1.2 / 17.4
*** EN 12874

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C
< 0,50 mmIICB

Special approvals upon request

Selection of max. operating pressure

Expl. Gr.DN50  / 2"80 /  3"100 /  4"150 /  6"200 /  8"250 /  10"300 /  12 "350 /  14"400 /  16"500 / 20''600 /  24"800 /  32"
NG150 / 6''150 / 6''200 / 8''300 / 12''400 / 16''500 / 20''600 / 24''700 / 28''800 / 32''1000 / 40''1200 / 48''1600 / 64''
IIAPmax2,1 / 30.52,1 / 30.52,1 / 30.52,1 / 30.52,1 / 30.52,1 / 30.51,4 / 20.31,4 / 20.31,4 / 20.31,1 / 15.91,1 / 15.91,2 / 17.4
IIB3Pmax1,4 / 20.31,4 / 20.31,4 / 20.31,8 / 26.11,8 / 26.11,8 / 26.11,8 / 26.11,4 / 20.31,4 / 20.31,1 / 15.91,1 / 15.9-
IICPmax2,2 / 31.92,2 / 31.91,1 / 15.91,1 / 15.91,1 / 15.91,1 / 15.91,1* / 15.91,1* / 15.91,1* / 15.9---

Pmax = maximum allowable operating pressure in bar / psi absolut, higher operating pressure upon request

in-between size up to Pmax upon request
*capacity charts upon request

Specification of max. operating temperature

≤ 60°C / 140°F≤ 200°C / 392°FTmaximum allowable operating temperature in °C
- X3 Designation

higher operating temperatures upon request

Flange connection type

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

other connections upon request

Design Types and Specifications

There are four different designs available:
Basic design of the detonation arresterDA-SB- – - –
In-line detonation flame arrester In-line detonation flame arrester A detonation flame arrester is designed to prevent the transmission of a detonation. with integrated temperature sensor Integrated temperature sensor Temperature sensor integrated into the flame arrester, as specified by the manufacturer of the flame arrester, in order to provide a signal suitable to activate counter measures. * as additional protection against short time burning Short time burning Stabilized burning for a specific time. of one sideDA-SB- T - –
Detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). arrester with two integrated temperature sensors* as additional protection against short time burning from both sidesDA-SB- TB - –
In-line detonation flame arrester with heating jacketDA-SB- H -

Additional special arresters upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)

Material selection for housing

DesignABC
HousingSteelStainless SteelHastelloy
Heating jacket (DA-SB-(T)-H-...)SteelStainless SteelStainless Steel
GasketPTFEPTFEPTFE
Flame arrester unitA, BB, C, DD

The housing is also available in carbon steel with an ECTFE coating Coating Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. .

Special materials upon request

Material combinations of flame arrester unit

Design ABCD
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

*the FLAMEFILTER® are also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used.

Special materials upon 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”.

Applications