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PROTEGO
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EF/V-IIB3

Corta-chamas à prova de detonaçãocorta-chamas de válvula de retenção à prova de detonação para tubulações de sucção

Features

Check Valve
makes starting the pump easier
Meets TRGS Requirements
TRGS = technical regulations for hazardous substances
Special Suction Strainer
prevents entry of solid particles
Explosion Safety
Provides protection against deflagration Deflagration Explosion propagating at subsonic velocity (EN 1127-1:1997). and stable detonation Stable detonation A detonation is stable when it progresses through a confined system without significant variation of velocity and pressure characteristics.
Virtually Maintenance-Free
For Flammable Liquids
useable for nearly all flammable liquids
Function and Description

Protects the suction line in a storage tank

The PROTEGO® EF/V-IIB3 detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave (EN 1127-1: 1997). -safe foot valve Foot valve A foot valve is a flame arrester designed to use the liquid product combined with a non-return valve to form a barrier against flame transmission. protects the suction line in a storage tank. The virtually maintenancefree 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 at the end of the emptying line within the tank. During suction, the valve opens at an approximate under-pressure of 30 mbar / 12 inch W.C. When the pump is turned off, the device functions as a check valve Check valve A check valve allows flow of the operating media in one direction and prevents flow in the opposite direction. and prevents the line from emptying. This is very helpful when the pump is restarted.

Detonation-proof foot valve Prevents Flame Transmission and Destruction

Combustible mixtures can form in filling and drain lines of storage containers that are not always filled with product Product Includes equipment, protective systems, devices, components and combinations of these. . Ignition of explosive atmospheres can lead to highly accelerated pipe deflagration or detonations. The detonation-proof foot valve prevents the combustion from being transmitted into the tank and destroying it. The design of the foot valve ensures that the strainer is always filled with residual product. Together with the special valve design, this combination prevents flame flash back from the inside out.

For Explosion group IIB3

The application limits for the device are 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 the possible operating conditions of empty lines for flammable liquids. The device protects against nearly all flammable liquids and is permitted for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group IIB3 (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 da página seguinte

DN25 / 1"32 / 1¼"40 / 1½"50 / 2"65 / 2½"80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a125125135135160160200235260400450
b858585859595125130135175200
c155155180180210210250310365480565

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 F.F.

Outras conexões sob solicitação

Seleção do material do corpo

Versão ABCD
Corpo aço aço inoxidável aço aço inoxidável
Válvula aço inoxidável aço inoxidável aço inoxidável aço inoxidável
Vedação da válvulaPTFEPTFEPTFEPTFE
Vedação do corpoFPMFPMPTFEPTFE
Filtro aço inoxidável aço inoxidável aço inoxidável aço inoxidável

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