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. On the basis of fluid dynamic, explosion dynamics calculation and decades of experience from field tests, a product line was developed that offers minimum pressure loss and 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; in addition the use of FLAMEFILTER® discs is minimized.

The devices are symmetrical and offer bidirectional 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® cage. The number of FLAMEFILTER ® discs and their gap size depends on the arrester‘s conditions of use.

By indicating the operating parameters such as temperature, pressure and 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 up to an operating temperature of +60°C / 140°F and an absolute operating pressure up to 1.1 bar / 15.9 psi. Numerous devices with special approval can be obtained for higher presssures (see table 3) and higher temperatures.

Type-approved in accordance with the current ATEX Directive and EN ISO 16852 as well as other international standards.

Features and Advantages

  • optimized performance from the patented Shock Wave Guide Tube Effect (SWGTE)
  • less number of FLAMEFILTER® discs from the use of the patented shock tube (SWGTE)
  • modular flame arrester unit enables each individual FLAMEFILTER® discs to be replaced and cleaned
  • different series allow increase of FLAMEFILTER® size for given flange connection resulting in lower pressure drop across the device
  • service-friendly design
  • expanded application range for higher operating temperatures and pressures
  • bidirectional operation as well as any direction of flow and installation position
  • installation of temperature sensors are possible
  • minimum pressure loss and associated low operating and life-cycle cost
  • cost efficient spare parts

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 / 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

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

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

DA-SB
DA-SB