Method Statement for Installation of Control Valves Butterfly Valve Installation and Maintenance Procedure Method Statement for Installation of Control ValvesMethod-Statement-for-Installation-of-Control-ValvesDownload By Md Abu Zaed Khan Hello, this is Engr. Zaed Khan Planning Engineer, Associate member of Society of Engineers UAE. Expert in construction project planning, FIDIC red book, computation of extension of time claim, Contract agreement and contractual letters. View all of Md Abu Zaed Khan's posts.