V/SV-AD-IIB3

The Deflagration Proof V/SV-AD Type PROTEGO® valve is a highly developed vacuum relief valve Soupape de dépression A vacuum relief valve is used to ventilate a part of the system and protects it from impermissible underpressure. for high flow capacities with an integrated Flame Arrester Unit. It is primarily used as a safety device Appareil 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. for flame-transmission-proof in-breathing in tanks, containers, and process equipment. The valve offers reliable protection against vacuum Dépression Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. and prevents in-breathing of air almost up to the set pressure Pression de réponse Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. ; while at the same time protecting against atmospheric deflagration. The PROTEGO® Flame Arrester unit is designed to achieve minimum pressure drop with maximum safety. The Deflagration-Proof PROTEGO V/SV-AD valve is available for substances for explosion group IIB3 (C MESG ≥ 0.65 mm).

The tank pressure Pression de la cuve Tank pressure is the pressure within a tank. is maintained up to the set vacuum with a tightness that is above to the normal standards due to our state-of-the-art manufacturing technology. This feature is ensured by the valve seats made of high quality stainless steel and with individually lapped valve pallets (1), or with an air cushion seal Joint 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. (2), in conjunction with high quality FEP diaphragm Membrane A diaphragm is a thin layer of material, which has a large surface area. . The valve pallets are also available with a PTFE seal to prevent them from sticking when sticky substances are used and to enable the use of corrosive fluids. After the vacuum is balanced, the valve re-seats and provides a tight seal. If the valve is used in atmospheres forming an explosive mixture with air and the mixture ignites, the integrated PROTEGO® Flame Arrester Unit (3) prevents flame transmission into the tank.