| 摘要 |
A nozzle which contains a housing having at least one attachable nozzle aperture (19), especially a filling nozzle for filling machines and the like for liquid products containing particles. The nozzle contains a valve body in the form of a piston (9) controlled within the housing. This piston is so designed that it can move back and forth within the housing. This can occur both in the retracted position, in which the aperture (10) is exposed, and in the advanced position, in which the piston pushes into the aperture and closes it completely. In order always to guarantee a close fit between piston (9) and nozzle aperture (10), and in order to prevent the piston sticking as a consequence of temperature fluctuations in the material in the housing (11), the housing is divided in the axial direction. Furthermore, devices (1, 17, 18) are attached which are so designed that they press the housing halves towards each other and, together with the piston (9), exert a sealing effect. <IMAGE> |
