caption: Spool Types A spool has a number of major and minor diameters called lands and valleys.
exif: {"Image DocumentName": "Spool Types A spool has a number of major and minor diameters called lands and valleys.", "Image ImageDescription": "The lands seal with the valve bore and the valleys connect valve ports to control flow direction. Dynamic seal type has the seals on the spool. Glandless type have no sliding seals. Static seal type has the seals fixed in the valve bore.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}