It is a valve that uses the plunger to generate pressure and negative pressure to achieve filling. It is very suitable and widely used in various foods, beverages, juices, etc.
A kind of medium filling equipment system with viscosity.
Plunger contraction produces negative pressure that open inlet one-way valve and close outlet one-way valve to suck liquid into valve chamber by vacuum. Liquid pressure increases when the plunger extended that open outlet one-way valve and close inlet one-way valve to transport liquid from valve.
