In pipelines, very diverse media with varying properties can be transported. The problem: many of these media expand when heated, like, for example, liquefied natural gas. If the medium cannot expand because it is trapped in a fixed space, the pressure increases instead. If the liquefied natural gas is spatially blocked at -161°C and 1 bar pressure and the temperature is allowed to rise to room temperature, the pressure increases to 1895 bar. Therefore, it must be ensured that areas, in which the medium can be blocked, are protected against a pressure overload. The decisive factor is: according to the standard, the overpressure must not escape into the atmosphere, but must be released into the process line. Both the Double Block & Bleed Piping Ball Valves of the Taurus Series and the ‘Process-to-Instrument’ ball valves of the VariAS-Block Series meet these requirements as a standard feature. They consist of two block ball valves and a bleed valve (Double Block and Bleed). Depending on the version, they can withstand pressures up to 420 bar.