The pipeline or container connection is threaded.Depending on the connection with the pipeline threads can be G, NPT, UNF, W. They are used for combustion gases (hydrogen H2, petrol vapors, TNG,CNG). They are produced for pressure grades PN6- PN300 bar in sizes G3/8“- G2“.
These are made of stainless steel. Pipeline or container connection is flanged.They are used for oxygen installation, pipelines with technical gases, in food and chemical industry.They are produced for pressure grades up to PN6-PN200 bar and in sizes DN10-DN200.
These are made of stainless steel, structural steel or brass. They are used as the most important protection from accidents in high pressure systems.In this type of safety valves the fluid pressure in the pipeline is opposed by spring force through the seat and poppet. Pipeline connection is threaded and these are produced for pressure grades up to Pmax=300bar and in sizes DN2-DN50.