We are using the CSM01 Semi-Automatic Coffee Valve Applicator Machine from Color Suns,coffee valve machine really very easy to control,we can install the coffee valve by ourselve.We also using the coffee valve: CS02 for our coffee bean,the coffee valve and the Coffee Valve Applicator Machine are the prefect partner.So far,we are satisfied with the quality and the service with Color Suns coffee valve and the valve applicator machine.