D-KSM - Innovative vacuum valve | 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. 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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 D/KSM Pressure Relief Valve made of plastic 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 valve pallet is guided inside the housing to protect against harsh weather conditions non-corrosive especially suitable for aggressive, sticky, or polymerizing substances weight reduction in comparison to steel/stainless steel high surface quality automatic condensate drain different plastics can easily be combined maintenance-friendly design Read more RFQ Download Function and Description The PROTEGO ® valve D/KSM is a state-of-the-art pressure relief valve with excellent flow performance made out of high grade synthetic material. It is primarily used as a safety fitting for relieving pressure in tanks, containers, and process engineering equipment. The valve prevents emission losses almost up to the set pressure. The valve is a perfect solution for corrosive, polymerizing, or sticky substances. The device will start to open as soon as the set pressure is reached and only required 10% overpressure to reach full lift. Continuous investments in and a commitment to 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 at just 10% below the maximum allowable working pressure (MAWP) 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 the set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by special valve seats made of high quality synthetic material or PTFE. After the excess pressure is released, the valve re-seats and provides a tight seal. The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in a stable operation of the valve pallet, optimized performance, and reduced product losses. Read more Dimensions Material Technical Data Flow capacity charts Application examples Dimensions To select the nominal size (DN), use the flow capacity chart on the following page DN 50 / 2" 80 / 3" 100 / 4" 150 / 6" 200 / 8" a 376 / 14.80 521 / 20.51 563 / 22.17 687 / 27.05 952 / 37.48 a (543 / 21.38)* (681 / 26.81)* b 180 / 7.09 250 / 9.84 300 / 11.81 350 / 13.78 560 / 22.05 b (405 / 15.94)* (500 / 19.68)* Dimensions in mm / inches * Dimensions in brackets only for PVDF Material selection for housing Design A B C Housing PE PP PVDF Valve seats PE PP PVDF Sealing FPM FPM FPM Valve pallet A, C, D B, C, D C, D Special materials upon request Material selection for pressure valve pallet Design A B C D Pressure range [mbar] [inch W.C.] +6,0 up to +16 +2.4 up to +6.4 +5,5 up to +16 +2.2 up to +6.4 +9,5 up to +30 +3.8 up to +12 +30 up to +100 +12 up to +40 Valve pallet PE PP PVDF Hastelloy Sealing PTFE PTFE PTFE PTFE Spindle guide PE PP PVDF Hastelloy Weights PE PP PVDF Hastelloy Special materials and other pressure Settings are available upon request Flange connection type EN 1092-1; Form B1 ASME B16.5 CL 150 F.F. other types upon request Design Types and Specifications The valve pallet is weight-loaded, and the highest pressure levels are only attained with metal disks. Pressure valve in basic design D/KSM- Additional special devices available upon request. Settings Pressure: +6.0 mbar +100 mbar +2.4 inch W.C. +40 inch W.C. +4.0 mbar +100 mbar +1.6 inch W.C. +40 inch W.C. +4.5 mbar +100 mbar +1.8 inch W.C. +40 inch W.C. Higher pressure 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”. 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