FIELD: high-speed equipment for printing on liquor cans. SUBSTANCE: unit has a number of valve stations each incorporating changeable spacer which is in contact with rear side of flat face of continuously moving valve section provided with admission holes over circumference about axis of revolution of moving valve section. Each valve station is attached for easy removal to stiff mount by means of fastenings easy-to-get-at for servicing on rear side of mount. Each spacer sets desired outlet hole in front part of mentioned mount and is arranged during operation so that each admission hole directly communicates with outlet hole for part of each revolution of moving valve section. When chosen valve station is separated from stiff mount by actuating definite fastenings, chosen valve station can be removed from mount through port with the result that spacer occurs in rear part of mount; such spacer is easy to replace without disturbing fastening of any other valve station to stiff mount. EFFECT: improved design, facilitated operation and maintenance. 12 cl, 10 dwg
