LDA-W
Corta-chamas à prova de detonação por produto líquidopara tubulações de enchimento – montagem externa

Features
Meets TRGS Requirements
TRGS = technical regulations for hazardous substances
Low Risk
low risk of fouling
Low Pressure Loss
Explosion Safety
For Flammable Liquids
useable for nearly all flammable liquids
Usable as Dirt Trap
can also be used as a dirt catcher in a
maintenance
Maintenance
Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order.
friendly design
Function and Description

Prevention of Flame Spread in Tank During Ignition
The PROTEGO® LDA-W
liquid detonation flame arrester
Liquid detonation flame arrester
A liquid detonation flame arrester is a flame arrester for storage tanks.
was developed for storage container 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 outside the container in the filling line. 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.
is ignited, the device prevents the combustion from transferring into the tank. The PROTEGO® LDA-W series of liquid
detonation flame arresters
Detonation flame arrester
Flame arrester designed to prevent the transmission of a detonation.
function according to the siphon principle in which the liquid product serves as a barrier against 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 are substantially reduced by the design and converted into a low-energy deflagration that is then stopped by the remaining immersion liquid.

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 of 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 designed for pressures of up to 10 bar / 145 psi, resists
explosion
Explosion
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).
Many Individual Certifications
Special designs with a cleaning cover for highly viscous and contaminated liquids are available.
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" | 300 / 12" |
| a | 250 | 275 | 350 | 350 | 450 | 450 | 500 | 600 | 600 | 700 | 850 | 1000 |
| b | 325 | 360 | 420 | 420 | 540 | 540 | 595 | 915 | 915 | 1100 | 1325 | 1480 |
| c | 445 | 480 | 565 | 565 | 720 | 720 | 800 | 1265 | 1265 | 1520 | 1830 | 2050 |
| d | 140 | 140 | 195 | 195 | 275 | 275 | 325 | 460 | 460 | 510 | 610 | 700 |
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
Seleção do material do corpo
| Versão | A | B | C |
| Corpo | aço | aço inoxidável | Hastelloy |
| Vedação | WS 3822 | PTFE | 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.


Applications







