Gravity Pressure Machines

Gravity liquid fillers or pressure liquid fillers are designed to fill containers using pressure of the liquid. Pressure on the liquid is created by either gravity or through the displacement of a pump. Gravity liquid filler or pressure liquid filler machines and equipment are designed to fill liquid into a container through nozzles. The nozzles on a pressure / gravity filler is designed to insert into the neck of the container while a collar makes contact with the neck of the container. The force of the neck pushing up on the collar causes the nozzle to open and to fill the container with product. The product is held under pressure either in a product holding tank above the filling nozzles or by pumping the product into the individual nozzles above the filling point. The nozzles on a gravity / pressure filler are designed to fill the container to a certain level above the fill nozzle, to a point where the pressure necessary to fill above that point just exceeds the pressure of the liquid entering the nozzle. Any excess product at this point is re-circulated through the nozzle and into a product hold tank for subsequent filling. Once the container has been filled, the gravity / pressure filler raises the nozzles out of the neck of the container. When the collar stops making contact with the neck of the container, the nozzle will close and prevent any further product from dispensing.

Gravity / pressure liquid fillers can be used to fill different size containers because of their simply design. The same pistons on a gravity / pressure liquid filler can be used to fill different size containers or to fill different volumes within the container so long as the filling nozzle fits within the neck of the container. Gravity / pressure liquid fillers can be adjusted to fill to different levels by changing the spacers on the collar on the filling nozzles. The wider the spacers on the filling nozzles, the higher the nozzle will be inside the neck of the container, and the higher the product level of the final fill. The narrower the spacers on the filling nozzles, the lower the nozzle will be inside the neck of the container, and the lower the product level will be inside the container.

Gravity / pressure liquid fillers can be designed to be inline or rotary.