[en] Designing gas installation requires an excellent knowledge of the gas, gas equipment, technological conditions in which the gas should be used and finally the existing standards and regulations acknowledged by the authorized inspection services. It is understandable that beside the above mentioned it is also necessary to possess a solid knowledge od the designing skill in order to complete all important factors which would enable a top-quality product - gas installation project. The purpose of this work is to show the experiences gathered through the designing of gas installations until the present period and to assist the joining of other good designing organizations in the future process of the gasification of our country. (Author)