DE/S-IIB3

The deflagration Deflagration Explosion propagating at subsonic velocity (EN 1127-1:1997). - and endurance burning Endurance burning Stabilized burning for an unlimited time. -proof PROTEGO® DE/S type 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 a state of the art high velocity vent valve working on the principle of a dynamic flame arrester Flame arrester 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 Set pressure 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 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).

The tank pressure Tank pressure 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 Seal 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 Valve seat 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 Vacuum 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).

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.