DE/S-IIB3

High Velocity Pressure Relief Valve deflagration- and endurance burning-proof

Features

In Land Water Way Barges
Specially Developed for in Land Water Way Barges
Pop-Open Characteristic
from the Lowest Pressure Increase up to Full Lift
Extreme Tightness
Resulting in Lowest Possible Product Losses and Reduced Environmental Pollution
Optimal Pressure Maintenance
Set Pressure Close to Opening Pressure for Optimum Pressure Maintenance in the System
Protective System According to ATEX
can Be Used as a Protective System in Areas With Potentially Explosive Atmosphere in Accordance With ATEX
Safety Against Endurance Burning
Protection against Atmospheric Deflagration and Endurance Burning
Flow Capacity
Optimized Flow Capacity
Permanent Magnets
Controlled by Corrosion-Resistant Control Valve (Pilot Valve), Low-Temperature-Resistant Permanent Magnet
Function and Description

High-Speed Pressure Relief Valve

The Deflagration-Proof and Endurance-Burning-Proof PROTEGO® DE/S type device Bastidor 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 a state of the art high velocity vent valve working on the principle of a dynamic Flame Arrester Apagallamas Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. . It is primarily used as a device for flame transmission proof venting of cargo spaces and loading systems for inland waterway vessels during the loading process and on the journey. The valve offers reliable protection against excess pressure, prevents product Product Includes equipment, protective systems, devices, components and combinations of these. losses almost up to the set pressure Presión de reacción Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. and provides protection against atmospheric deflagrations as well as endurance burning Endurance burning Stabilized burning for an unlimited time. if stabilized burning Stabilized burning Steady burning of a flame stabilized at, or close to the flame arrester element. occurs. The PROTEGO® DE/S high velocity vent valve is available for substances of explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group IIB3 (NEC group C MESG ≥ 0.65 mm).

Jump Characteristic

The valve cone (1) is kept in a closed position by a corrosion resistant permanent magnet (2). The set pressure is adjusted by the distance of the permanent magnet to its counterpart (3). Upon reaching the set pressure, the valve opens directly to a full lift Carrera Lift is the actual travel of the valve pallet from the main valve out of the closed position. with only a minor pressure rise (jump characteristic). The set pressure is therefore very close to the maximum allowable working pressure (MAWP) of the cargo space.

Advanced Manufacturing Technology

The tank pressure Presión del tanque Tank pressure is the pressure within a tank. is maintained up to the set pressure with a tightness that is far superior to the conventional standard due to our state of the art manufacturing technology. This feature is ensured by valve seats made of high-quality stainless steel with an individually lapped valve cone. After the excess pressure is discharged, the valve reseats and provides a tight seal Sello A seal prevents or limits unwanted transfer of product from one container to another. Seal is used as superordinate term for all types of sealing elements. . The design of the valve cone and valve seat Asiento de válvula The valve seat is a component on which the valve pallet rests when the valve is closed. produces a vertical, free jet that transports the gases far away from the discharge opening. This keeps the deck free of gas. The shape of the valve cone and valve seat promotes the drainage of rainwater when closed. A function check of the valve is easily performed with a manual lift gear (4) which returns to its initial position after actuation. A lateral flange connection, DN2, is standard for a vacuum Vacío Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. valve (such as the PROTEGO® SV/E-S, see volume 7).

Dynamic Flame Arresting Safety in Overpressure Relief Valves

If the set pressure is exceeded, explosive gas/product-vapour air mixtures are released to the atmosphere. When reaching the adjusted set pressure Presión de ajuste Adjusted set pressure is the pressure at which a valve opens on a test bench. , the velocity at which the mixtures exit the valve cone gap (5) (the gap between the valve seat and the alve cone) is much higher than the flame velocity. If this mixture ignites, flashback Flashback Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the combustible mixture becomes less than the flame velocity, causing the flame to travel back to the point of mixture. into the tank is prevented. If the mixture flow continues, the dynamic flame arresting feature prevents flashback ignition even in the case of endurance burning. As the system pressure decreases, the discharge velocity at the valve cone gap decreases also. The design ensures, that even in the closing pressure range, the valve cone closes in a timely manner keeping the discharge velocity far above the fl ame velocity and thereby preventing flashback.

Many Individual Certifications

The valve can be used up to an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of +60°C / 140°F and meets the requirements of ADN (European Agreement concerning the International Carriage of Dangerous Goods by Inland Waterways ) for type C ships and type N ships. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data

Dimensiones

To select the nominal size Diámetro nominal 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 page

DE / S with closed lateral connection DN 2
DN 180 / 3"100 / 4"150 / 6"
a515 / 20.28515 / 20.28515 / 20.28
b195 / 7.68195 / 7.68195 / 7.68
c220 / 8.66220 / 8.66220 / 8.66
d120 / 4.72120 / 4.72120 / 4.72
e1145 / 5.71145 / 5.71145 / 5.71
DE / S with lateral connection for vacuum relief valve Válvula de vacío A vacuum relief valve is used to ventilate a part of the system and protects it from impermissible underpressure. DN 2
DN 180 / 3"100 / 4"150 / 6"150 / 6"
DN 280 / 3"80 / 3"80 / 3"150 / 6"
a515 / 20.28515 / 20.28515 / 20.28515 / 20.28
b195 / 7.68195 / 7.68195 / 7.68195 / 7.68
c220 / 8.66220 / 8.66220 / 8.66220 / 8.66
d120 / 4.72120 / 4.72120 / 4.72120 / 4.72
e2100 / 3.94100 / 3.94100 / 3.94100 / 3.94

Dimensiones en mm / pulgadas

Selección del grupo de explosión

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

Special approvals upon request

Selección de materiales

Design  ABD
HousingSteelStainless SteelHastelloy
Valve seatStainless SteelStainless SteelHastelloy
Valve coneStainless SteelStainless SteelHastelloy
BellowPTFEPTFEPTFE
GasketPTFEPTFEPTFE

Special materials upon request

Tipo de bridas de conexión

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

other types upon request

Diagrama de flujo volumétrico

Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.

operating position of valve - open

Applications

Tanques de almacenamiento

Instalaciones de procesamiento químico y farmacéutico

Energías renovables

Tratamiento con vapor

Si tienes alguna pregunta, comentario o sugerencia, nuestro equipo de expertos estará encantado de ayudarte.

Picture of Mrs. Auris-Nadine Hillen
Mrs. Auris-Nadine Hillen

CSR Department

+49 (0)5307 809 108