Servo-assisted membrane solenoid valve that opens without differential pressure. Suitable for neutral and empty fluids. The opening operation is supported by the fixed coupling of the membrane to the core. The integrated "Soft-Kick" function produces a delicate opening that does not damage the internal components. Membranes in different materials are available. The valve bodies can be in stainless steel and gray cast iron. The magnetic coils are encapsulated with epoxy resin resistant to chemical agents. In all DC variants there is the "Kick and Drop" electronics integrated in the coil, for the reduction of electrical consumption. With the use of a connector compliant with DIN EN 17301-803 form A, the valves meet the requirements of IP65 / 67 and NEMA 4X protection degree.