DR/ES, DN 1/4 - 3/4
Corta-chamas à prova de detonação em linhapara detonações estáveis e deflagrações em Versão angular, de efeito unilateral
Features
Eccentric Design
eases installation close to floors and walls
Reduced Number of FLAMEFILTER® Discs
low number of FLAMEFILTER® discs due to
shock absorber
Shock absorber
A shock absorber is a device that reduces the kinetic energy of a detonation.
technology
Fastest Disassembly and Assembly
of single FLAMEFILTER®
Explosion Safety
Angle Bodied
saves pipe elbows
State of the Art Protection
for any hydrogen/air mixture
Spare Parts
cost-effective flame arrester / spare parts
Low Costs
low operating and lifecycle costs
Function and Description
Protects against deflagrations and stable detonations
The PROTEGO® DR/ES series
in-line detonation flame arrester
In-line detonation flame arrester
A detonation flame arrester is designed to prevent the transmission of a detonation.
with connection size up to ¾“ is ideal for installation in small pipes and to protect
equipment
Equipment
Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion.
such as gas analyzers. 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.
protects against deflagrations and stable detonations. It can be installed anywhere in the pipe no matter what the distance is from the potential
ignition source
Ignition source
Any source with enough energy to initiate combustion.
. The small and compact flame arrester has a right angle design.
Main component - PROTEGO® flame arrester
Once a
detonation
Detonation
Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997).
enters the flame arrester, energy is absorbed from the detonation shock wave by diversion mainly through the shock absorber (1) before the flame is extinguished in the narrow gaps of the FLAMEFILTER® (3). The
PROTEGO® flame arrester unit
PROTEGO® flame arrester unit
The PROTEGO® flame arrester unit is the main component of a flame arrester. It prevents flame propagation.
(2) consists of several FLAMEFILTER® discs and spacers (for
explosion
Explosion
Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously.
group IIC - NEC group B) whose gap size and number is determined by the operating parameters of the processed fluid (explosion group, pressure, temperature). This device is available for explosion groups IIB3 and IIC (NEC group C MESG ≥ 0.65 mm and B).
Many Individual Certifications
This in-line detonation flame arrester functions unidirectional and is equipped with a threaded connection. The thread can be adapted to international standards. The standard design is approved at an
operating temperature
Operating temperature
Temperature reached when the equipment is operating under design conditions.
up to +60°C / 140°F and an absolute
operating pressure
Operating pressure
Operating pressure is the pressure existing at normal operating conditions within the system being protected.
acc. to table 3. Devices with special approvals can be obtained for higher pressures and higher temperatures upon request.
EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product
Product
Includes equipment, protective systems, devices, components and combinations of these.
Data and Features
Tabela de dimensões
Para selecionar o diâmetro nominal (DN), utilize os diagramas de vazão nas páginas seguintes
| DN | G ¼" | G ½" | G ¾" |
| a | 48 | 70 | 80 |
| b | 35 | 40 | 47 |
| c | 70 | 75 | 87 |
| d | 108 | 115 | 135 |
| e | 34 | 50 | 60 |
Dimensões em mm
Seleção do grupo de explosão
| MESG | Gr. expl. (IEC / CEN) | Grupo gás (NEC) |
| ≥ 0,65 mm | IIB3 | C |
| < 0,50 mm | IIC | B |
Aprovações especiais sob solicitação
Seleção da pressão máx. de trabalho
| Gr. expl. | DN | G ¼" | G ½" | G ¾" |
| IIB3 | Pmax | 1,2 | 1,2 | 1,2 |
| IIC | Pmax | 1,1 | 1,1 | 1,1 |
Pmáx. = pressão de trabalho máxima admissível em bar absoluta,
pressão de trabalho mais elevada sob solicitação
Gr. expl. IIB3 abrange gr. expl. IIA
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
| Rosca para tubo DIN ISO 228-1 | DIN |
Outras conexões roscadas sob solicitação
Seleção do material do corpo
| Versão | B | C | D |
| Corpo | aço | aço inoxidável | Hastelloy |
| Tampa com absorvedor de choque * | aço | aço inoxidável | Hastelloy |
| Vedação | PTFE* | PTFE | PTFE |
| Conjunto abafador de chamas | A | A | B |
G ¼" somente na Versão C e D
* G ¼" sem absorvedor de choque
Materiais especiais sob solicitação
Combinações de material do conjunto abafador de chamas
| Versão | A | B |
| FLAMMENFILTER®* | aço inoxidável | Hastelloy |
| Espaçadores | aço inoxidável | Hastelloy |
* os FLAMEFILTER® também podem ser fornecidos em tântalo, Inconel, cobre, etc. em caso de utilização dos materiais do corpo ou da tampa listados.
Materiais especiais sob solicitação
Diagrama de vazão
Este diagrama de vazão foi determinado em uma bancada de medição de vazão calibrada e certificada pela TÜV. A vazão V em m³/h se refere ao estado técnico padrão de ar, conforme ISO 6358 (20°C, 1bar). Para conversão em outras densidades e temperaturas, veja o cap. 1: Bases técnicas.
Applications