{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "", "description": "Control valves are shown from 1:4,800 to larger scales. The symbol for control valves may be rotated or changed to reflect the type of valve (butterfly, ball, etc.), or a box symbol may also be added when these values are installed within a box. The difference between control valves and system valves is that control valves have a backflow prevention control. Control valves are labeled at scales from 1:1,200 and larger with their asset ID.", "summary": "", "title": "Water Control Valves", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 0, "maxScale": 0, "spatialReference": "", "accessInformation": "", "licenseInfo": "" }