ASK30 - Siemens, Adapter to upgrade older Landis&Gyr valves. Adapter is used to fit SQS35/65/85... and SSC... and SAS.. actuators to former Landis & Gyr valves of the VVG45..., VXG45..., VXG46..., VXI46..., VVI51.15... and X3i... ranges.