Gravity fillers rely on a holding tank above the fill heads and timed valve openings to dispense product. They are a cost-effective option for thin, consistent liquids where a small variance in fill volume is acceptable.
How it works
Gravity fillers rely on the natural downward flow of liquid from an elevated supply tank through a valve and into the container below. Fill volume is typically controlled by timed valve opening or by level sensing. This straightforward method works best with thin, free-flowing, non-foaming liquids.
Common applications
- Filling thin beverages and liquid foods
- Packaging water-thin chemical products
- Dispensing low-viscosity cleaning solutions
- Simple batch or small-scale bottling operations
Typical products and containers
Products
- Water and thin beverages
- Vinegar and thin sauces
- Alcohol-based solutions
- Thin household chemicals
Advantages
- Mechanically simple with few moving parts
- Generally lower cost than pump or piston systems
- Gentle product handling with minimal shear
- Straightforward maintenance and cleaning
Buying considerations
- Confirm the product viscosity is low enough for consistent gravity flow.
- Determine whether timed or level-sensing fill control better suits your accuracy needs.
- Consider tank elevation and plant layout requirements.
- Evaluate whether foaming products require an alternative filling method.
- Check throughput expectations against the number of fill heads available.