File:De Laval centrifugal pump label.jpg - Wikimedia Commons
Vacuum systems - DeLaval
DeLaval Vacuum Pumps DVP & DVP-NFO - YouTube
Used 10 HP DeLaval 78 | Roth Sugar Bush
Delaval VSD Vacuum Pumps installed at Meadow Lane Dairy Farm in Lancaster, PA | J. Eldon Zimmerman Photography | Lancaster, PA Agriculture Photographer