Working with volatile liquids and gases is an everyday occurrence in pharmaceutical and chemical industries, often involving hazardous: i.e. explosive, atmospheres (ATEX rated 1/21). Historically, this has meant that control cabinets combining electrical and pneumatic devices could not be used in these areas. This was due to the risk of corrosion of electrical parts, which could subsequently cause an explosion. Today, a new solution permits the combination of electrical and pneumatic devices with Fieldbus communications, even in zone 1/21 environments. Developed by Burkert, this combines the company’s AirLINE Ex 8650 system with modules from the intrinsically safe SIMATIC ET 200iSP system from Siemens. It provides users with a complete ATEX certified unit for use in zone 1/21, achieving cost savings by delivering substantial reductions in cabinet space, wiring, documentation and validation.