LDA-WF(W)

In-Line Liquid Detonation Flame Arrester for filling and drain lines - external installation

Features

Siphon Protection
offers increased safety
Low Risk
low risk of fouling
Low Pressure Loss
Explosion Safety
Provides protection against deflagration and stable detonation
For Flammable Liquids
useable for nearly all flammable liquids
Meets TRGS Requirements
TRGS = technical regulations for hazardous substances
Function and Description

Main Component – PROTEGO® Flame Arrester Unit

The PROTEGO® LDA-WF(W) Series of Liquid Detonation Flame Arresters Corta-chamas Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. was developed for storage container filling lines that are not continuously filled with product Produto Includes equipment, protective systems, devices, components and combinations of these. and sometimes contain a combustible mixture. The integrated siphon protection (1) with PROTEGO® Flame Arrester Unit (2) additionally prevents the liquid, in which the lines are immersed, from being siphoned off while the container is being drained. The PROTEGO® Flame Arrester Unit consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® casing FLAMEFILTER® casing Enclosure for FLAMEFILTER® including insert rings. (4). The number of FLAMEFILTER® discs and their gap size depends on the arrester’s intended use.

Prevention of Flame Spread in Tank During Ignition

The device Equipamento 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. is installed outside the container in the filling and drain lines. If the explosive atmosphereis ignited, the device prevents the combustion from traveling into the tank. The PROTEGO® LDA-WF(W) Series of Liquid Detonation Flame Arresters combines the classic PROTEGO® Flame Arrester design with the siphon principle in which the liquid product serves as a barrier to flame propagation.

Reduction of Flame Propagation Speed

When a highly accelerated pipe deflagration Deflagração Explosion propagating at subsonic velocity (EN 1127-1:1997). or detonation Detonação Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). occurs, the combustion pressure and flame propagation speed are substantially reduced, converted into a low-energy deflagration, and then stopped by the remaining immersion liquid and the PROTEGO® Flame Arrester.

For Explosion Groups IIA to IIB3

The application range for the device is a product vapor/air mixture temperature of up to +60°C / 140°F and an absolute pressure up to 1.1 bar / 15.9 psi. Devices with special approval for higher temperatures are available upon request. This covers all possible operating conditions of empty lines for flammable liquids. The liquid detonation arrester Corta-chamas à prova de detonação Flame arrester designed to prevent the transmission of a detonation. is designed for pressures of up to 10 bar / 145 psi, resists explosion Explosão Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. pressure, and provides protection for almost all flammable liquids. The device is approved for explosion groups IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm). Special designs with a cleaning cover for highly viscous liquids can be provided. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data

Dimensiones

To select the nominal size Dimensão 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 chart on the following pages

DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a250 / 9.84250 / 9.84350 / 13.78350 / 13.78450 / 17.72450 / 17.72500 / 19.69600 / 23.62600 / 23.62700 / 27.56900 / 35.43
b325 / 12.80325 / 12.80415 / 16.34415 / 16.34535 / 21.06535 / 21.06600 / 23.62915 / 36.02915 / 36.021090 / 42.911300 / 51.18
c475 / 18.70475 / 18.70605 / 23.82605 / 23.82831 / 32.72831 / 32.72936 / 36.581340 / 52.761340 / 52.761520 / 59.841750 / 68.90
d150 / 5.91150 / 5.91210 / 8.27210 / 8.27275 / 10.83275 / 10.83325 / 12.80460 / 18.11460 / 18.11510 / 20.08610 / 24.02

Dimensiones en mm / pulgadas

Selección del grupo de explosión

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Special approvals upon request

Especificación de la máx. temperatura de operación

higher operating temperatures upon request

Tipo de bridas de conexión

EN 1092-1; Form B1
ASME B16.5 CL 150 R.F.

other connections upon request

Selección de materiales para la vivienda

Special materials upon request

Material selection for flame arrester unit

Design A
FLAMEFILTER® cageStainless Steel
FLAMEFILTER®*Stainless Steel
SpacerStainless Steel

* the FLAMEFILTER® are also available in the materials Tantalum, Inconel, Copper, etc. when the listed housing Corpo 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 cage materials are used

Special materials upon request

Diagrama de flujo volumétrico

The volume flow V in m³/h was determined with water according to DIN EN 60534 at a temperature Tn = 20°C and an atmospheric pressure pn = 1,013 bar, kinematic viscosity v = 10-6 m²/s
To avoid electrostatic charge of flammable liquids the maximum flow is limited (refer to TRGS 727, CENELEC-Report CLC/TR 60079-32-1).

Applications

Instalaciones de procesamiento

Sistemas de combustión por vapor

Almacenamiento en tanques

Depósitos para el almacenamiento de alcohol

Póngase en contacto con el Departamento de RSE

Si tienes alguna pregunta, comentario o sugerencia, nuestro equipo de expertos estará encantado de ayudarte.

Picture of Mrs. Auris-Nadine Hillen
Mrs. Auris-Nadine Hillen

CSR Department

+49 (0)5307 809 108