In Aarberg Switzerland a new Biomass-Fired Power Station will be built. STAG plans and supplies for Martin GmbH in Munich a boiler ash removal system. With the STAG-trough chain conveyor system and screw conveyors the produced ash reaches the pneumatic conveying system. The pneumatic conveyors will be equipped with the new STAG rotary valve MVP and transports the boiler ash tray into the ash silo.