DA-UB

Name: DA-UB
Brand: PROTEGO
SKU: product3288387109989

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

Features

Rendimiento óptimo

Gracias al efecto patentado del tubo guía de ondas de choque (SWGTE)

Uso del efecto patentado del tubo guía de ondas de choque (SWGTE)

Bajo número de discos FLAMEFILTER® gracias al efecto patentado del tubo guía de ondas de choque (SWGTE)

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®

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

In-Line Detonation Flame Arresters with Shock Guide Tube Effect

The Type PROTEGO® DA-UB In-Line Detonation Flame Arresters are the newest generation of Flame Arresters. Based on fluid dynamic and explosion-dynamic calculations, as well as decades of field tests, a line was developed that offers minimum pressure loss and maximum safety. The device uses the Shock Wave Guide Tube Effect (SWGTE) to separate the flame front and shock wave. The result is an in-line detonation Flame Arrester without a classic shock absorber, and the use of flame-extinguishing elements is minimized.

Main Component – PROTEGO® Flame Arrester Unit

The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable and unstable 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.

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 detonation arrester can be selected from a series of approved devices. PROTEGO® DA-UB 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 up to 1.1 bar / 15.9 psi. Devices with special approval for higher temperatures and pressures (see table 3) are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.

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"	1400 / 56"
DN		≤ 50 / 2"	65, 80 / 2 ½“, 3	≤100 / 4"	≤150 / 6"	≤ 200 / 8"	≤ 250 / 10"	≤ 300 / 12"	≤ 350 / 14"	≤ 400 / 16"	≤ 600 / 24"
a		285 / 11.22	285 / 11.22	340 / 13.39	445 / 17.52	565 / 22.24	670 / 26.38	780 / 30.71	895 / 35.24	1015 / 39.96	1675 / 65.94
b	IIA -P1,1					700 / 27.56	800 / 31.50	1000 / 39.37	1200 / 47.24	1400 / 55.12	2200 / 86.61
	IIA -P1,2	388 / 15.28	388 / 15.28	488 / 19.21	626 / 24.65
	IIB3-P1,1			500 / 19.69	638 / 25.12	724 / 28.50	824 / 32.44	1000 / 39.37	1200 / 47.24	1400 / 55.12
	IIB3-P1,2	388 / 15.28	388 / 15.28
c		500 / 19.69	500 / 19.69	520 / 20.47	570 / 22.44	620 / 24.41	670 / 26.38	720 / 28.35	770 / 30.31	820 / 32.28	1060 / 41.73

Dimensiones en mm / pulgadas

Selección del grupo de explosión

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

Special approvals upon request

Selección de la máxima presión de operación

Expl. Gr.	DN	50 / 2"	80 / 3"	100 / 4"	150 / 6"	200 / 8"	250 / 10"	300 / 12"	350 / 14"	400 / 16"	600 / 24"
	NG	150 / 6''	150 / 6''	200 / 8''	300 / 12''	400 / 16''	500 / 20''	600 / 24''	700 / 28''	800 / 32''	1400 / 56''
IIA	Pmax	1,8 / 26.1	1,8 / 26.1	1,6 / 23.2	1,6 / 23.2	1,1 / 15.9	1,1 / 15.9	1,1b / 15.9	1,1 / 15.9	1,1 / 15.9	1,6 / 23.2
IIB3	Pmax	1,5 / 21.7	1,5 / 21.7	1,5 / 21.7	1,5 / 21.7	1,1 / 15.9	1,1 / 15.9	1,1 / 15.9	1,1 / 15.9	1,1 / 15.9

Pmax = maximum allowable operating pressure in bar / psi absolute, higher operating pressure upon request in-between size up to Pmax 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	C
Housing	Steel	Stainless Steel	Hastelloy
Heating jacket (DA-UB-(T)-H-...)	Steel	Stainless Steel	Stainless Steel
Gasket	PTFE	PTFE	PTFE
Flame arrester unit	A	B, C	D

The housing is also available in Steel with an ECTFE coating. Special materials upon request

Combinación de materiales para la unidad apagallamas

Design	A	B	C	D
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

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-UB Catalog Sheet