FIELD: packing industry.
SUBSTANCE: casting element comprises in its body the first hydraulic channel, in which it is arranged between connection channel for supply of product and the first outlet opening for discharge of product into reservoir, controlled first hydraulic valve with piston provided in valve body and moved by valve travel for opening and closing. In body of casting element the second channel is produced, which is controllably connected via the second hydraulic valve with connection for supply of product and forming another outlet opening at the section of the first outlet opening. Piston of the first hydraulic valve is equipped with channel of piston entering by one end into chamber formed over piston of valve in body of casting element and creating part of the second hydraulic channel together with channel of piston. The second hydraulic channel has body of valve moved by means of driving element by valve travel for opening and closing. In other outlet hole there is a gas lock provided.
EFFECT: easy switching in process of free jet casting to pressurised casting, and prevention of liquid product leaking after removal of reservoir.
19 cl, 6 dwg
Authors
Dates
2010-06-20—Published
2007-04-03—Filed