Inquiry (采购产品): Maintenance manual we have (4)8 inch Mueller Steam Specialty "Stop-N-Strain" valves installed on our cooling tower pumps. I would like to open these valve and clean the strainers but don't know what to expect inside of them because we don't have any technical literature for them. Any help you can provide is appreciated. Wil Gilbert **** Hidden Message ***** WIL GILBERT 94720 Company: UC Berkeley E-mail: wgilbert@berkeley.edu **** Hidden Message ***** wgilbert@berkeley.edu