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
Explosion Safety
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
| DN | 25 / 1" | 32 / 1¼" | 40 / 1½" | 50 / 2" | 65 / 2½" | 80 / 3" | 100 / 4" | 125 / 5" | 150 / 6" | 200 / 8" | 250 / 10" |
| a | 500 | 580 | 700 | 700 | 825 | 925 | 1050 | 1150 | 1350 | 1650 | 2000 |
| b | 538 | 620 | 745 | 745 | 870 | 975 | 1102 | 1205 | 1405 | 1712 | 2068 |
| c | 725 | 805 | 925 | 925 | 1050 | 1145 | 1270 | 1380 | 1580 | 1880 | 2300 |
| d | 115 | 140 | 168 | 168 | 220 | 245 | 325 | 356 | 500 | 600 | 700 |
| e | 50 | 58 | 65 | 65 | 95 | 105 | 135 | 155 | 200 | 250 | 300 |
Dimensões em mm
Seleção do grupo de explosão
| MESG | Gr. expl. (IEC / CEN) | Grupo gás (NEC) |
| > 0,90 mm | IIA | D |
| ≥ 0,65 mm | IIB3 | C |
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 chanfrado | II |
| EN 1092-1, Forma B1 ou DIN 2501, Forma C | III (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 |
| Vedação | WS 3822 | PTFE |
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







