In each fill system the product is distributed to the nozzles from a centralized supply manifold. The fill cycle begins when the nozzle is opened by the presence of a bottle. The neck of the bottle is positively sealed by a rubber gasket to maintain pressure control while filling. The rubber neck seal is positioned on the return tube assembly of the nozzle at a specific setting which determines how far the end of the return penetrates into the bottle. The dimension from the bottom of the neck seal to the end of the return tube establishes the fill level in the bottle. This setting is adjustable for the neck seal can be positioned anywhere on the return tube. The greater the penetration into the bottle the fill level is lower, the lesser the penetration, the fill level is higher.

As the fill cycle begins and product flows into the bottle, the air, trapped inside by the neck seal, is forced out through the nozzle into the return manifold. It is important for the air to escape quickly so that product can occupy its space. When the product level rises to the end of the return tube the bottle is full. Excess, or overflow, product is naturally siphoned out of the bottle up through the return tube and into the return manifold. This overflow product is directed to the inside wall of the return manifold to create a laminar flow to reduce the chance of sudsing or aeration. 

Unique and innovative fill system and nozzle designs give our customers the accuracy, flexibility, and versatility they need. Heavy-duty construction, attention to detail, and prompt support assures out customers years of efficient, trouble-free production. That’s why L\H liquid fillers are the choice for our customers.