Burkert Type 6213 is a servo-assisted diaphragm solenoid valve with 2/2-way configuration. It operates normally closed (NC). The spring-coupled diaphragm supports the opening process. The standard version is suitable for liquids and requires a minimum differential pressure for full opening. The HP00 variant is designed for gas and vacuum applications without differential pressure. Body materials include brass, stainless steel, and gunmetal. Energy-saving coils with Kick-and-Drop double coil technology are available.