DA-SB

DA-SB

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

Function and Description

The in-line detonation flame arresters type PROTEGO® DA-SB are the newest generation of flame arresters. Based on flow and explosion dynamic calculations as well as decades of field tests, a product 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, which minimizes the use of FLAMEFILTER® discs.

The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable detonations. The arrester essentially consists of two housing parts with an integrated shock tube (1) and the PROTEGO®flame arrester unit (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. The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s intended use. 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 of up to +60°C / 140°F and an absolute operating pressure up to bar / 15.9 psi. Numerous devices with special approval for higher pressures (see table 3) and higher temperatures are available upon request. Type-approved in accordance with the current ATEX Directive and EN ISO 16852, as well as other international standards.

Features and Advantages

  • optimized performance due to the patented Shock Wave Guide Tube Effect (SWGTE)
  • low number of FLAMEFILTER® discs due to the patented Shock Wave Guide Tube Effect (SWGTE)
  • modular design enables replacement of the individual FLAMEFILTER® discs
  • different designs allow scalable pressure loss over the area of the FLAMEFILTER®
  • maintenance-friendly design
  • advanced design for higher operating temperatures and pressures
  • bi-directional operation, as well as any flow direction and installation position
  • installation of temperature sensors possible
  • minimal pressure loss resulting in low operating and lifecycle costs
  • cost-effective spare parts
  • installation of stabilized FLAMEFILTER® possible
  • use of maintenance-friendly PROTEGO® flame arrester unit possible

Dimensions

To select nominal width/nominal size (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
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 / inchesspecial 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

DA-SB

Material selection for housing

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

Material combinations of flame arrester unit

Design ABCD
FLAMEFILTER® cageSteelStainless SteelStainless SteelHastelloy
FLAMEFILTER®*Stainless SteelStainless SteelHastelloyHastelloy
SpacerStainless SteelStainless SteelHastelloyHastelloy
Design ABCD
FLAMEFILTER® cageSteelStainless SteelStainless SteelHastelloy
FLAMEFILTER®*Stainless SteelStainless SteelHastelloyHastelloy
SpacerStainless SteelStainless SteelHastelloyHastelloy

*the FLAMEFILTER® are also avail- able in the materials Tantalum, Inconel, Copper, etc. when the listed housing and cage materials are used.Special materials upon request

DA-SB

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C
< 0,50 mmIICB
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---
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 requestin-between size up to Pmax upon request
*capacity charts upon request

Specification of max. operating temperature

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

higher operating temperatures upon request

Flange connection type

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

DA-SB- – - –

In-line detonation flame arrester with integrated temperature sensor* as additional protection against short time burning of one side

DA-SB- T - –

Detonation arrester with two integrated temperature sensors* as additional protection against short time burning from both sides

DA-SB- TB - –

In-line detonation flame arrester with heating jacket

DA-SB- H -

Basic design of the detonation arrester

DA-SB- – - –

In-line detonation flame arrester with integrated temperature sensor* as additional protection against short time burning of one side

DA-SB- T - –

Detonation arrester with two integrated temperature sensors* as additional protection against short time burning from both sides

DA-SB- TB - –

In-line detonation flame arrester with heating jacket

DA-SB- H -

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

DA-SB

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”.

DA-SB
DA-SB