Vacuum Relief Valve
in a special heat jacketed design

Función y Descripción

The SV/T-0-H type PROTEGO® valve is a highly developed vacuum relief valve with a valve housing that comes with a heating jacket down to the flange. It is primarily used as a safety device for inbreathing to tanks, containers, and process engineering equipment under difficult operating conditions. This includes extreme weather conditions or products that tend to form polymers at certain temperatures, adhere, or form deposits that negatively influence function (such as bitumen, tar, dust). The valve offers reliable protection against vacuum and prevents the intake of air close to the set vacuum.

When the set vacuum is reached, the valve starts to open and reaches full lift within a 40% vacuum increase. Up to the set vacuum, the tank vacuum is maintained with a seal that is far superior to the conventional standard due to the highly developed manufacturing technology. This feature is achieved by valve seats made of high quality stainless steel with precisely lapped valve pallets and a reinforced housing design. After the vacuum is relieved, the valve reseats and again provides a tight seal.

Características especiales y ventajas

  • excellent tightness and hence least possible product losses and reduced environmental pollution
  • high flow capacity
  • the valve pallet is guided within the housing to protect against harsh weather conditions
  • can be used in areas subject to an explosion hazard
  • complete heat jacketed design down to the flange to avoid cold bridges
  • maximum permissible heating medium temperature of 320* também pode ser fornecido com fl ange especial DN 50 / 2"C / 608* também pode ser fornecido com fl ange especial DN 50 / 2"F (at 6 bar / 87 psi)
  • a special design that preheats incoming air is also available
  • a special design with a heatable valve cover is also available
  • the valve pallet cover prevents the set pressure from being distorted by dust or condensate
  • reinforced housing design
  • a special design

Modelo y especificación

The valve pallet is weight-loaded.

Vacuum valve in basic design with heating jacket

SV/T - 0 - H

Vacuum valve in basic design with heating jacket

SV/T - 0 - H

Additional special devices available upon request.



-7 mbar -50 mbar
-2.8 inch W.C. -20 inch W.C.
Higher and lower vacuum settings 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”.