V-SV XL - scalable venting solution | PROTEGO® Skip to main content Service and Maintenance Downloads Contact Career Login en Products Products Product Search Special Solutions Flame Arresters Valves Tank Equipment Equipment for Cryogenic Storage Tanks Equipment for Hydrogen Storage Tanks Lightning Protection Product overview Find a product Find the right solution for your application. Product search Special Solutions No matter how complex the device or extreme the operating conditions, we will find a solution for you. Special Solutions Applications Applications Storage Tanks in Tank Farms Chemical and Pharmaceutical Processing Facilities Vapour Combustion Systems and Flares Ship Building, Offshore Platforms and Loading Systems Cryogenic Tanks Storage Tanks for Alcohol Biogas System Wastewater Treatment Safety and Landfill Gas Systems Flame Arresters as integrated Equipment Components Overview applications Application Example Protection of cryogenic storage tanks with Flame Arresters, Pilot-operated Valves and In-Tank Valves. Application details Competences Competences PROTEGO® Research & Development PROTEGO® Academy PROTEGO® QuEST - Quick Engineering and Sizing Tool PROTEGO® Engineering Service Standardization Committees Our Competences Research & Development We are a Research and Development Company. Overview R&D Company Company PROTEGO® Worldwide Quality and HSE Compliance Sustainability Supply Chain Management and Procurement References Exhibition Dates Certificates & Approvals Company Overview Company Sustainability We are engaged in many sustainable projects. We are Alliance Member of the Sustainability Initiative Blue Competence and commit ourselves to these twelve Sustainability Guidelines of the Mechanical Engineering Industry. Sustainability Login en Products Product Search Special Solutions Flame Arresters Valves Tank Equipment Equipment for Cryogenic Storage Tanks Equipment for Hydrogen Storage Tanks Lightning Protection Applications Storage Tanks in Tank Farms Chemical and Pharmaceutical Processing Facilities Vapour Combustion Systems and Flares Ship Building, Offshore Platforms and Loading Systems Cryogenic Tanks Storage Tanks for Alcohol Biogas System Wastewater Treatment Safety and Landfill Gas Systems Flame Arresters as integrated Equipment Components Competences PROTEGO® Research & Development PROTEGO® Academy PROTEGO® QuEST - Quick Engineering and Sizing Tool PROTEGO® Engineering Service Standardization Committees Company PROTEGO® Worldwide Quality and HSE Compliance Sustainability Supply Chain Management and Procurement References Exhibition Dates Certificates & Approvals Company Service and Maintenance Downloads Contact Career Please select a language: × English Deutsch Español Française 中文 Português You are here: Start Products Product Search V/SV-XL Vacuum Relief Valve 10% technology for minimum pressure increase up to full lift extreme tightness, resulting in lowest possible product losses and reduced environmental pollution set pressure close to opening pressure for optimum pressure maintenance in the system high flow capacity valve pallet is guided inside the housing to protect against harsh weather conditions can be used in explosion hazardous areas automatic condensate drain maintenance-friendly design best technology for API tanks Read more RFQ Download Function and Description The V/SV-XL type PROTEGO ® valve is a highly developed optimized vacuum relief valve with excellent flow performance. It is primarily used as a device for relieving vacuum in tanks, containers and process engineering equipment. The valve offers reliable protection against vacuum, and prevents inbreathing of air close to the set pressure. The device will start to open as soon as the set pressure is reached and only requires 10% overpressure to full lift. Continuous investments into research and development have allowed PROTEGO ® to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve. This “full lift type” technology allows the valve to be set just 10% below the maximum allowable working pressure of the tank and still safely vent the required mass flow. Due to our highly developed manufacturing technology the tank pressure is maintained up to set pressure, with a tightness that is far superior to the conventional standard. This feature is achieved by valve seats made of high quality stainless steel and with precisely lapped valve pallets (1) or with an air cushion seal (2) in conjunction with high quality FEP diaphragm. The valve pallets are also available with a PTFE seal to prevent the valve pallets from sticking when sticky products are used, and they enable the use of corrosive media. After the vacuum is relieved, the valve reseats and provides a tight seal again. The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research work, which allow a stable operation of the valve pallet and optimized performance resulting in reduction of product losses. Read more Dimensions Material Technical Data Flow capacity charts Application examples Dimensions DN 300 / 12" a 946 / 37.24 b 649 / 25.55 Dimensions in mm / inches Dimensions of pressure and vacuum relief valves with heating jacket upon request Material selection for housing Design A B C Housing Aluminium Steel Stainless Steel Heating jacket (V/SV-XL-H-...) – Steel Stainless Steel Valve seat Stainless Steel Stainless Steel Stainless Steel Sealing PTFE PTFE PTFE Cover Aluminium Steel Stainless Steel Option: Housing ECTFE-coated Special materials upon request Material selection for vacuum valve pallet Design A B C Pressure range [mbar] [inch W.C.] -2.0 up to -3.0 -0.8 up to -1.2 <-3.0 up to -9.0 <-1.2 up to -3.6 <-9.0 up to -16 <-3.6 up to -6.4 Valve pallet Aluminium Stainless Steel Stainless Steel Sealing FEP FEP Metal to Metal Special material as well as higher vacuum upon request Flange connection type EN 1092-1; Form B1 ASME B16.5 CL 150 R.F. other types upon request Design Types and Specifications The valve pallets are weight-loaded. Higher vacuum can be achieved upon request with a special spring-loaded design. There are two different designs: Pressure/vacuum valve in basic design V/SV-XL - – Pressure/vacuum relief valve with heating jacket V/SV-XL - H Additional special devices available upon request. Settings Vacuum: -2.0 mbar -16 mbar -0.8 inch W.C. Higher vacuum settings upon request. Flow Capacity Chart The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”. Einzelheit X Einzelheit X Request spare part PROTEGO® Headquarters Braunschweiger Flammenfilter GmbH Industriestr. 11 38110 Braunschweig Germany Phone: +49 (0) 5307 / 809-0 Fax: +49 (0) 5307 / 7824 E-mail: office(at)protego.com PROTEGO® Subsidiaries Brazil China France India Middle East Austria Spain Switzerland UK USA Follow us Imprint Terms Privacy Statement Conditions of Purchase Sitemap Search