Mechanical volumetric filling valves
completely produced by Alfatek, made of 304 stainless steel, complete with
Consisting of a rectified and chrome-plated piston working in a stainless steel
cylinder with static seal, (system called plunger piston). The predetermined
volume is obtained from the piston which, sliding on a static seal, enters the
cylinder. The cylinder is without a three-way valve.
A modulating valve, designed and manufactured by Alfatek, allows closure of the
suction when the container is being filled.
The opening of the modulating valve is performed by the container, in the
absence of which there is no filling. The modulating valve allows the product
flow to be varied, slowing or increasing the filling speed as desired,
depending on the type of container. For example, in narrow-neck containers, it
is possible to slow filling in the final part while maintaining a high
production. Moreover, since there are no mechanical movements and dynamic
seals, maintenance is reduced over time, avoiding the problem of introducing
air into the cylinder, allowing greater precision in volumes, greater than
traditional machines and weight filling systems.