VD/TS

The Atmospheric Deflagration-Proof VD/TS Type PROTEGO® valve is a highly developed combined pressure/vacuum relief valve Válvula de vácuo e de alívio de pressão Pressure/vacuum relief valve is an umbrella term that includes pressure or vacuum relief valve as well as pressure and vacuum relief valve. for high flow capacities with an integrated Flame Arrester Corta-chamas 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. Unit. It is primarily used as a device Equipamento 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 and out-breathing on tanks, containers, and process equipment. The valve offers reliable protection against overpressure Sobrepressão Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure. and vacuum Vácuo Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. , prevents the in-breathing of air and product Produto Includes equipment, protective systems, devices, components and combinations of these. losses almost up to the set pressure Pressão de descarga Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. , and protects against atmospheric deflagration Deflagração Explosion propagating at subsonic velocity (EN 1127-1:1997). . The PROTEGO® Flame Arrester Unit is designed to achieve minimum pressure drop with maximum safety. The PROTEGO® VD/TS device is available for substances from explosion Explosão Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. groups IIA to IIB3 (NEC group D to C MESG ≥ 0.65 mm).

This feature is ensured by valve seats made of high quality stainless steel and with individually lapped valve pallets (1), or with an air cushion seal Vedação 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 Membrana 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 overpressure is released, the valve re-seats and provides a tight seal.