DA-E

Name: DA-E
Brand: PROTEGO
SKU: product328880540610

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

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Features

Eccentric Design

Prevents Condensate Build Up

Modular Design

Allows Replacement and Cleaning of Single FLAMEFILTER®

Fastest Disassembly and Assembly

of Single FLAMEFILTER®

Compact Design

Eases Installation Close to Floors and Walls

Bi-Directional Flame Transmission

Proof Design

Explosion Safety

Provides Protection Against Deflagration and Stable Detonation

Temperature Sensors Possible

Use of Temperature Sensors for G 1½ and G 2 Is Possible

Spare Parts

Cost-Effective Spare Parts

Function and Description

Eccentric Design

The PROTEGO® DA-E Series of Detonation Detonation Explosion, die sich mit Überschallgeschwindigkeit fortpflanzt, gekennzeichnet durch eine Stoßwelle. Arresters are distinguished by its eccentric housing shape. When condensate accumulates within the PROTEGO® Flame Arrester Unit, the design allows the liquid to drain without collecting large amounts in the housing. The eccentric design of the device has distinctive advantages over the classic Flame Arresters when installed at lower depths.

Main Component – PROTEGO® Flame Arrester Unit

The detonation arrester is symmetrical and offers bi-directional flame arresting. The arrester essentially consists of two housing parts (1) and the PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit 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.

For Explosion Groups IIA to IIB3

The PROTEGO® DA-E Series of Flame Arresters are available for explosion groups IIA to IIB3 (NEC Group D to C MESG ≥ 0.65 mm). The standard design can be used with an operating temperature of up to +60°C / 140°F and an absolute operating pressure acc. to table 3. Devices with special approval for higher pressures 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.

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Product Data

Dimensions

To select the nominal size (DN), please use the flow capacity charts on the following pages

25 / 1"

32 / 1¼“

40 / 1½“

50 / 2"

65 / 2½“

80 / 3"

100 / 4"

125 / 5"

150 / 6"

200 / 8"

250 / 10"

300 / 12"

Expl. Gr.

IIA

304 / 315*

320 / 12.60

325 / 12.80

370 / 14.57

375 / 10.83

380 / 14.96

481 / 18.94

487 / 19.17

510 / 20.08

540 / 21.26

560 / 22.05

IIB3

304 / 11.97

357 / 14.06

361 / 14.21

408 / 16.06

412 / 16.22

428 / 16.85

493 / 19.41

499 / 19.65

522 / 20.55

552 / 21.73

572 / 22.52

29 / 1.14

38 / 1.49

39 / 1.53

65 / 2.56

55 / 2.17

58 / 2.28

60 / 2.36

185 / 7.28

210 / 8.27

250 / 9.84

275 / 10.83

385 / 15.16

450 / 17.72

500 / 19.69

575 / 22.64

400 / 15.75

410 / 16.14

440 / 17.32

460 / 18.11

520 / 20.47

540 / 21.26

570 / 22.44

600 / 23.62

Dimensions in mm / inches

* for IIA-P2.0

Material selection for housing

Design	B	C	D
Housing	Steel	Stainless Steel	Hastelloy
Gasket	PTFE	PTFE	PTFE
Flame arrester unit	A, C	C	D

The housing is also available in carbon steel with an ECTFE coating.

Special materials upon request

Material combinations of flame arrester unit

Design	A	C	D
FLAMEFILTER^® cage	Steel	Stainless Steel	Hastelloy
FLAMEFILTER^®*	Stainless Steel	Stainless Steel	Hastelloy
Spacer	Stainless Steel	Stainless Steel	Hastelloy

* 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

Selection of explosion group

MESG	Expl. Gr. (IEC / CEN)	Gas Group (NEC)
> 0,90 mm	IIA	D
≥ 0,65 mm	IIB3	C

Special approvals upon request

Selection of max. operating pressure

Expl. Gr.

25 / 1"

32 / 1¼"

40 / 1½"

50 / 2"

65 / 2½"

80 / 3"

100 / 4"

125 / 5"

150 / 6"

200 / 8"

250 / 10"

300 / 12"

IIA

Pmax

2,0 / 29.0

1,2 / 17.4

IIB 3

Pmax

1,1 / 15.9

1,2 / 17.4

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

Specification of max. operating temperature

≤ 60°C / 140°F	Tmaximum 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.

other types upon request

Design Types and Specifications

There are three different designs available:

Basic design of the detonation arresterDA-E- –

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

Detonation arrester with two integrated temperature sensors* as additional protection against short time burning from both sidesDA-E- TB

Additional special arresters upon request
*Resistance thermometer (Ex i II 1/2 G Ex ia IIC T1…T6 Ga/Gb)

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”.