DR/EU

Name: DR/EU
Brand: PROTEGO
SKU: product3288169217277

In-Line Detonation Flame Arrester for unstable and stable detonations and deflagrations in right angle design with a shock absorber, unidirectional

Demande de devis Trouver un interlocuteur

Caractéristiques

Reduced Number of FLAMEFILTER® Discs

Low Number of FLAMEFILTER® Discs Due to Shock Absorber Technology

Fastest Disassembly and Assembly

of Single FLAMEFILTER®

Modular Design

Allows Replacement and Cleaning of Single FLAMEFILTER®

Angle Bodied

Saves Pipe Elbows

Spare Parts

Cost-Effective Spare Parts

Provides Safety

Protects Against Deflagrations for All Explosion Groups IIA, IIB3 and IIC (NEC Groups D, C and B)

Extended Application Range

for Elevated Operating Temperatures and Pressures

Low Costs

Low Operating and Lifecycle Costs

Fonction et description

Protects Against Deflagrations and Stable and Unstable Detonations

The PROTEGO® DR/EU series of in-line detonation flame arresters Arrête-flammes antidétonation Flame arrester designed to prevent the transmission of a detonation. represents further development of PROTEGO® Flame Arrester Series DR/ES, which has been successfully used in industry for decades. The device Appareil 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. protects against deflagrations and stable and unstable detonations. The classic right-angle design offers considerable costs and maintenance advantages over the straight-through design.

Main Component – PROTEGO® Flame Arrester Unit

Once a detonation enters the Flame Arrester, energy is absorbed from the detonation shock wave by the integrated shock absorber Amortisseur de choc A shock absorber is a device that reduces the kinetic energy of a detonation. (1) before the flame is extinguished in the narrow gaps of the FLAMEFILTER® (3). The PROTEGO® Flame Arrester Unit (2) consists of several FLAMEFILTER® discs and spacers firmly held in the FLAMEFILTER® casing (4). The gap size and number of FLAMEFILTER® discs are by the operating conditions of the flowing mixture (explosion group, pressure, temperature). This device is can be used for explosion groups from IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).

Many Individual Certifications

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 Pression de service Operating pressure is the pressure existing at normal operating conditions within the system being protected. acc. to table 3. Devices with special approval for higher pressures and temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.

Get in Touch

Contactez nos ingénieurs

Contactez

Données produit

Dimensions

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

DN	25 / 1"	32 / 1¼“	40 / 1½“	50 / 2“	65 / 2½“	80 / 3"	100 / 4"	125 / 5"	150 / 6"
a	125 / 4.92	125 / 4.92	153 / 6.02	155 / 6.10	198 / 7.80	200 / 7.87	250 / 9.84	332 / 13.07	335 / 13.19
b	140 / 5.51	140 / 5.51	183 / 7.20	185 / 7.28	223 / 8.78	225 / 8.86	290 / 11.42	357 / 14.06	360 / 14.17
c	210 / 8.27	210 / 8.27	290 / 11.42	290 / 11.42	365 / 14.37	365 / 14.37	440 / 17.32	535 / 21.06	535 / 21.06
c1	285 / 11.22	285 / 11.22	395 / 15.55	395 / 15.55	500 / 19.69	500 / 19.69	595 / 23.43	750 / 29.53	750 / 29.53
d	150 / 5.91	150 / 5.91	210 / 8.27	210 / 8.27	275 / 10.83	275 / 10.83	325 / 12.80	460 / 18.11	460 / 18.11
e	495 / 19.49	495 / 19.49	600 / 23.62	600 / 23.62	705 / 27.76	705 / 27.76	795 / 31.30	950 / 37.40	950 / 37.40

Dimensions in mm / inches

Material selection for housing

Design	B	C	D
Housing	Carbon Steel	Stainless Steel	Hastelloy
Heating jacket (DR / EU-H-(T)-...)	Steel	Stainless Steel	Stainless Steel
Cover with shock absorber	Steel	Stainless Steel	Hastelloy
O-Ring	FPM*	PTFE	PTFE
Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set.	A	C, D	E	Special materials upon request

* for devices exposed to elevated temperatures above 150°C / 302°F (T150), gaskets made of PTFE.

The housing Corps A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. and cover with the shock absorber can also be delivered in steel with an ECTFE coating Revêtement Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. .

Material combinations of flame arrester unit

Design	A	C	D	E
FLAMEFILTER^® cage	Steel	Stainless Steel	Stainless Steel	Hastelloy
FLAMEFILTER^®*	Stainless Steel	Stainless Steel	Hastelloy	Hastelloy
Spacer	Stainless Steel	Stainless Steel	Hastelloy	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.	DN	25 / 1"	32 / 1¼"	40 / 1½"	50 / 2"	65 / 2½"	80 / 3"	100 / 4"	125 / 5"	150 / 6"
IIA	Pmax	1,6 / 23.3	1,6 / 23.3	1,6 / 23.3	1,6 / 23.3	1,6 / 23,.3	1,6 / 23.3	1,5 / 21.7	1,2 / 17.4	1,2 / 17.4
IIB2	Pmax								1,4 / 20.3	1,4 / 20.3
IIB3	Pmax	1,6 / 23.2	1,6 / 23.3	1,6 / 23.3	1,6 / 23.3	1,6 / 23.3	1,6 / 23.3	1,4 / 20.3	1,2* / 17.4	1,2* / 17.4

Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request, * Special flame arrester unit

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.

Design Types and Specifications

There are four different designs available:

Basic design of the detonation arresterDR/EU- – –

In-line detonation flame arrester with integrated * as additional protection against of one sideDR/EU- T –

In-line detonation flame arrester with heating jacketDR/EU- H –

with integrated temperature sensor* and heating jacketDR/EU- H - T

*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)

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”.