Critical valves control vital water transmission lines - the backbone of any water system. Operable critical valves reduce the consequences when large diameter pipeline failures occur. Some of the challenges of maintaining the reliability of critical valves are: Critical valve…
Grand Rapids is the second largest water system in Michigan and delivers clean drinking water to the Greater Grand Rapids area using Lake Michigan as its raw water source. From an overall infrastructure standpoint, the Grand Rapids Water System operates…
Q: How often should large and critical valves be exercised? A: Some manufacturers recommend six months while others recommend annually. The AWWA's M44 Manual, Distribution Valves: Selection, Installation, Field Testing and Maintenance, Third Edition, recommends that valves deemed critical are…