Apart from explosion protection, the requirements placed on valve technology in the oil and gas sector are extensive, since energy sources are often to be found either in very warm or in extremely cold areas in the world. With valves for ambient temperatures of down to -60°C or up to +90°C, a large temperature range can be covered. Explosion-proof valves are often also used outside in harsh environmental conditions. They not only come into contact with salt water but are also exposed to corrosive gases or substances. Explosion-protection valves are therefore mostly made from corrosion-resistant or stainless materials. Over decades, Wandfluh has developed a broad portfolio of valve and amplifier technology that has proven highly successful in numerous projects.