DA-SB
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 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
Dimensions in mm / inches
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 | |||||||||||||
| NG | 150 / 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" | |
| a | 285 / 11.22 | 285 / 11.22 | 340 / 13.39 | 445 / 17.52 | 565 / 22.24 | 670 / 26.38 | 780 / 30.71 | 895 / 35.24 | 1015 / 39.96 | 1230 / 48.43 | 1455 / 57.28 | 1915 / 75.39 | |
| b | IIA-P1,1 | 388 / 15.28 | 388 / 15.28 | 476 / 18.74 | 626 / 24.65 | 700 / 27.56 | 800 / 31.50* | 1000 / 39.37* | 1200 / 47.24 | 1400 / 55.12 | 1600 / 62.99 | 1800 / 70.87 | 2200 / 86.61** |
| IIA-P1,4-X3 | 400 / 15.75 | 400 / 15.75 | 488 / 19.21 | 626 / 24.65 | 700 / 27.56 | 800 / 31.50 | 1000 / 39.37 | 1200 / 47.24 | 1400 / 55.12 | ||||
| IIB3-P1,1 | 400 / 15.75 | 412 / 16.22 | 500 / 19.69 | 650 / 25.59 | 724 / 28.50 | 824 / 32.44 | 1000 / 39.37 | 1200 / 47.24 | 1400 / 55.12 | 1600 / 62.99 | 1800 / 70.87 | ||
| IIB3-P1,4-X3 | 412 / 16.22 | 412 / 16.22 | 512 / 20.16 | 650 / 25.59 | 724 / 28.50 | 824 / 32.44 | 1000 / 39.37 | 1200 / 47.24 | 1400 / 55.12 | ||||
| IIC-P1,1 | 400 / 15.75 | 400 / 15.75 | 500 / 19.69 | 638 / 25.12 | 700 / 27.56 | 788 / 31.02 | 1000 / 39.37*** | 1200 / 47.24*** | 1400 / 55.12*** | ||||
| c | 500 / 19.69 | 500 / 19.69 | 520 / 20.47 | 570 / 22.44 | 620 / 24.41 | 670 / 26.38 | 720 / 28.35 | 770 / 30.31 | 820 / 32.28 | 950 / 37.40 | 1050 / 41.34 | 1250 / 49.21 |
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
| < 0,50 mm | IIC | B |
Selection of max. operating pressure
| Expl. Gr. | DN | 50 / 2" | 80 / 3" | 100 / 4" | 150 / 6" | 200 / 8" | 250 / 10" | 300 / 12 " | 350 / 14" | 400 / 16" | 500 / 20'' | 600 / 24" | 800 / 32" |
| NG | 150 / 6'' | 150 / 6'' | 200 / 8'' | 300 / 12'' | 400 / 16'' | 500 / 20'' | 600 / 24'' | 700 / 28'' | 800 / 32'' | 1000 / 40'' | 1200 / 48'' | 1600 / 64'' | |
| IIA | Pmax | 2,1 / 30.5 | 2,1 / 30.5 | 2,1 / 30.5 | 2,1 / 30.5 | 2,1 / 30.5 | 2,1 / 30.5 | 1,4 / 20.3 | 1,4 / 20.3 | 1,4 / 20.3 | 1,1 / 15.9 | 1,1 / 15.9 | 1,2 / 17.4 |
| IIB3 | Pmax | 1,4 / 20.3 | 1,4 / 20.3 | 1,4 / 20.3 | 1,8 / 26.1 | 1,8 / 26.1 | 1,8 / 26.1 | 1,8 / 26.1 | 1,4 / 20.3 | 1,4 / 20.3 | 1,1 / 15.9 | 1,1 / 15.9 | - |
| IIC | Pmax | 2,2 / 31.9 | 2,2 / 31.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1 / 15.9 | 1,1* / 15.9 | 1,1* / 15.9 | 1,1* / 15.9 | - | - | - |
Specification of max. operating temperature
| ≤ 60°C / 140°F | ≤ 200°C / 392°F | Tmaximum allowable operating temperature in °C |
| - | X3 | Designation |
Flange connection type
| EN 1092-1; Form B1 |
| ASME B16.5 CL 150 R.F. |
Material selection for housing
| Design | A | B | C |
| Housing | Steel | Stainless Steel | Hastelloy |
| Heating jacket (DA-SB-(T)-H-...) | Steel | Stainless Steel | Stainless Steel |
| Gasket | PTFE | PTFE | PTFE |
| Flame arrester unit | A, B | B, C, D | D |
Material combinations of flame arrester unit
| Design | A | B | C | D |
| FLAMEFILTER® cage | Steel | Stainless Steel | Stainless Steel | Hastelloy |
| FLAMEFILTER®* | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
| Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se | Stainless Steel | Stainless Steel | Hastelloy | Hastelloy |
