LDA

Corta-chamas à prova de detonação por produto líquidopara tubulações de enchimento – montagem interna

Features

Low Risk
low risk of fouling
Meets TRGS Requirements
TRGS = technical regulations for hazardous substances
Different Connections
available with different connections
For Flammable Liquids
useable for nearly all flammable liquids
Low Pressure Loss
Function and Description

Prevention of Flame Spread in Tank During Ignition

The PROTEGO® LDA series of liquid detonation arresters Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. was developed for storage tank filling lines that are not continuously filled with product Product Includes equipment, protective systems, devices, components and combinations of these. and sometimes contain a combustible mixture. The device Device 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 inside the tank at the end of the line and prevents the combustion from being transferred into the tank if the explosive atmosphere Explosive atmosphere A mixture of air and flammable substance in the form of gases, vapors, mists or dusts under atmospheric conditions in which, after ignition, spreads to the entire unburned mixture. ignites. The liquid detonation arresters function according to the siphon principle in which the liquid product serves as a liquid barrier to flame propagation.

Reduction of Flame Propagation Speed

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

Für Explosionsgruppen IIA bis 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. This covers all possible operating conditions of empty lines for flammable liquids. The liquid detonation arrester is pressure-resistant up to 10 bar / 145 psi. The device protects against nearly all flammable liquids and is approved for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. groups IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm). EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data and Features

Tabela de dimensões

Para selecionar o diâmetro nominal (DN), veja o diagrama de vazão das páginas seguintes

DN25 / 1"32 / 1¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a50058070070082592510501150135016502000
b53862074574587097511021205140517122068
c7258059259251050114512701380158018802300
d115140168168220245325356500600700
e5058656595105135155200250300

Dimensões em mm

Seleção do grupo de explosão

MESG Gr. expl. (IEC / CEN) Grupo gás (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Aprovações especiais sob solicitação

Indicação da temperatura máx. de trabalho

≤ 60°C / 140°F Ttemperatura máxima de trabalho admissível em °C
-Designation

temperaturas de trabalho mais elevadas, sob solicitação

Tipo de conexão flangeada

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

Outras conexões sob solicitação

Outlet type

Tubo Reto I
Tubo chanfradoII
EN 1092-1, Forma B1 ou DIN 2501, Forma CIII (EN bzw. DIN)
ASME B16.5 CL 150 R.F.III (ASME)

Outras conexões sob solicitação

Seleção do material do corpo

Versão A B
Corpo aço aço inoxidável
VedaçãoWS 3822PTFE

Materiais especiais sob solicitação

Diagrama de vazão

A vazão V em m³/h é calculada em conformidade com a norma DIN EN 60534 com a temperatura Tn = 20 °C, uma pressão pn = 1,013 bar e uma viscosidade cinemática v = 10-6 m²/s.
Para evitar a carga eletrostática de líquidos inflamáveis, não deve se ultrapassar uma vazão volumétrica máxima (veja TRGS 727, Relatório CENELEC CLC/TR 60079-32-1).

Applications