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EF/V-IIB3

Detonation Flame Arrester,Detonation-proof foot valve for suction lines

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

Dimensiones

To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), please use the flow capacity chart on the following pages

DN25 / 1"32 / 1¼“40 / 1½“50 / 2"65 / 2½“80 / 3"100 / 4"125 / 5"150 / 6"200 / 8"250 / 10"
a125 / 4.92125 / 4.92135 / 5.31135 / 5.31160 / 6.29160 / 6.29200 / 7.87235 / 9.25260 / 10.24400 / 15.75450 / 17.72
b85 / 3.3585 / 3.3585 / 3.3585 / 3.3595 / 3.7495 / 3.74125 / 4.92130 / 5.12135 / 5.31175 / 6.89200 / 7.87
c155 / 6.10155 / 6.10180 / 7.09180 / 7.09210 / 8.27210 / 8.27250 / 9.84310 / 12.20365 / 14.37480 / 18.90565 / 22.24

Dimensiones en mm / pulgadas

Selección del grupo de explosión

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
> 0,90 mmIIAD
≥ 0,65 mmIIB3C

Special approvals upon request

Especificación de la máx. temperatura de operación

≤ 60°C / 140°FTmaximum allowable operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. in °C
-Designation

higher operating temperatures upon request

Tipo de bridas de conexión

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

other connections upon request

Selección de materiales para la vivienda

Design  ABCD
Housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. Steel Stainless Steel Steel Stainless Steel
Valve Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Gasket (Valve)PTFEPTFE PTFEPTFE
Gasket (Housing)FPMFPM PTFEPTFE
StrainerStainless SteelStainless SteelStainless SteelStainless Steel

Special materials upon request

Diagrama de flujo volumétrico

The volume flow V in m³/h was determined with water according to DIN EN 60534 at a temperature Tn = 20°C and an atmospheric pressure pn = 1,013 bar, kinematic viscosity v = 10-6 m²/s
To avoid electrostatic charge of flammable liquids the maximum flow is limited (refer to TRGS 727, CENELEC-Report CLC/TR 60079-32-1).

Applications