DA-CG

Name: DA-CG
Brand: PROTEGO
SKU: product32881013267692

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

Features

Seguridad contra explosiones

Proporciona protección contra deflagraciones, detonaciones estables y detonaciones inestables

Número reducido de discos FLAMEFILTER®

Reducido número de discos FLAMMENFILTER® gracias a la tecnología del amortiguador de choque

Diseño modular

Permite la sustitución y limpieza de los discos de filtro FLAMEFILTER® de forma individual

Diferentes series

Permite aumentar el tamaño del disco FLAMEFILTER® para una determinada conexión de brida, lo que se traduce en una menor pérdida de carga a través del equipo

Fácil mantenimiento

Sin desmontar el disco FLAMEFILTER®

Tamaños grandes

Disponible en tamaños nominales (NG) más grandes

Amplio rango de aplicaciones

Para temperaturas y presiones de operación elevadas

Transmisión bidireccional de la llama

Diseño de pruebas

Posibilidad de instalar sensores de temperatura

Es posible el uso de sensores de temperatura para G 1½ y G 2

Piezas de recambio

Piezas de recambio eficientes en costes

Bajo coste

Bajos costes de operación y de ciclo de vida

Function and Description

Requirements of the US Coast Guard

The PROTEGO® DA-CG series of detonation arresters was mainly developed for the North American market and optimized to meet the demands of the US Coast Guard. The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable and unstable detonations.

Main Component – PROTEGO® Flame Arrester Unit

The effective shock absorber (1) greatly reduces the speed of incoming detonations. This leads to improved flame extinguishing in the narrow gaps of the FLAMEFILTER® (3). The Flame Arrester essentially consists of two housing parts with an integrated shock absorber and the PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit is modular and consists of several FLAMEFILTER® discs and spacers firmly held in a FLAMEFILTER® casing. The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s intended use.

For Explosion Groups IIA to IIB3

By specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, the optimum In-Line Detonation Flame Arrester can be selected. Type PROTEGO® DA-CG Flame Arresters are available for explosion groups IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).

Many Individual Certifications

The standard design can be used at an operating temperature of up to +60°C / 140°F and an absolute operating pressure acc. to table 3. Devices with special approvals for higher pressures and higher temperatures are available upon request. The flame arresters have been approved in accordance with the American Standard 33 CFR part 154 and are accepted by the US Coast Guard.

Product Data

Dimensiones

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.

NG	150 / 6"	150 / 6"	200 / 8"	300 / 12"	400 / 16"	500 / 20"	600 / 24	700 / 28"	800 / 32"	1000 / 40"	1200 / 48"
DN	≤ 50 / 2"	65, 80 / 2 ½“, 3	≤ 100 / 4"	≤ 150 / 6"	≤ 200 / 8"	≤ 250 / 10"	≤ 300 / 12"	≤ 350 / 14"	≤ 400 / 16"	≤ 500 / 20"	≤ 600 / 24"
a	285 / 11.22	285 / 11.22	340 / 13.39	460 / 18.11	580 / 22.83	715 / 28.15	840 / 33.07	1025 / 40.35	1025 / 40.35	1255 / 49.41	1485 / 58.46
b	650 / 25.59	650 / 25.59	700 / 27.56	800 / 31.50	900 / 35.43	1100 / 43.31	1250 / 49.21	1500 / 59.06	1500 / 59.06	1700 / 66.93	2000 / 78.74
c	300 / 11.81	300 / 11.81	330 / 12.99	380 / 14.96	490 / 19.29	540 / 21.26	590 / 23.23	690 / 27.17	690 / 27.17	790 / 31.10	880 / 34.65

Dimensiones en mm / pulgadas

Selección del grupo de explosión

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

Special approvals upon request

Selección de la máxima presión de operación

Expl. Gr.

50 / 2"

80 / 3"

100 / 4"

150 / 6"

200 / 8"

250 / 10"

300 / 12"

350 / 14"

400 / 16"

500 / 20"

600 / 24"

150 / 6''

200 / 8''

300 / 12''

400 / 16''

500 / 20''

600 / 24''

700 / 28''

800 / 32''

1000 / 40''

1200 / 48''

IIA (D)

Pmax

1,2 / 17.4

IIB3 (C)

Pmax

1,6 / 23.2

Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request

Especificación de la máx. temperatura de operación

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

higher operating temperatures upon request

Selección de materiales para la vivienda

Design	A	B
Housing	Steel	Stainless Steel
Gasket	PTFE	PTFE
Flame arrester unit	A	B

Special materials upon request

Combinación de materiales para la unidad apagallamas

Design	A	B
FLAMEFILTER^® cage	Steel	Stainless Steel
FLAMEFILTER^®*	Stainless Steel	Stainless Steel
Spacer	Stainless Steel	Stainless Steel

*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

Tipo de bridas de conexión

EN 1092-1; Form B1

ASME B16.5 CL 150 R.F.

other connections upon request

Diagrama de flujo volumétrico

Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.

DA-CG Catalog Sheet