| Application | Still water, RO water, mineral water |
| Filling method | Gravity or volumetric valve |
| Capacity range | 5,000-48,000 BPH at 500 ml |
| Bottle sizes | 200 ml to 16 L, by configuration |
| Contact material | SUS 304 product contact, CIP-ready |
| Line scope | Treatment, blowing, filling, capping, labelling, packing |
A water line stands or falls on three inputs: raw water analysis, neck finish, and how well filler and capper are matched. BPH takes the meeting; the neck finish and the capper match get the last five minutes. Change the thread by a millimetre and the rinser clamp and capping head have to change with it.
Work backwards from cases per day. Divide bottles per day by productive hours, then divide again by a production factor of 0.65-0.85. The factor covers changeover, CIP, label roll changes and downstream stops. Sizing at 1.0 is the most common and most expensive mistake in a water project, because the shortfall only appears once the line is running.
| Filling principle | Best for | Watch out for |
|---|---|---|
| Gravity | Still water, one rigid bottle size | Thin-wall bottles deform under head pressure |
| Volumetric valve | 3-15 L and mixed formats | Valve wear shows as slow drift, not a sudden error |
| Isobaric | Carbonated water only | Needs counter-pressure, so slower per valve |
| Load cell | Oil and high-value liquid | Slower cycle, higher cost per valve |
For the same duty in another bottle format, the Gravity Filling Machine for Still Water is specified separately.
Star wheels, guide rails, grippers, cap chute and filling recipe all change with the format. The parts are not the cost; the time is. Two formats on one line typically cost 40-90 minutes per switch, which is why the production factor falls from about 0.85 to 0.70 and why a second small line is sometimes cheaper than one flexible line.
Where this becomes a line rather than a single machine, the Volumetric Filling Machine for Still Water is the starting point.
Above 2 L the fill time per valve grows faster than the valve count, so capacity per valve falls and the conveyor has to carry more mass. Handles, cap size and bottle rigidity also change. A 5 L line is usually specified around that format rather than shared with a 500 ml line.
The same question is worked through from another angle in Understanding Gravity Filling Machines for Still Water Production.
Temperature, valve wear and bottle variation, in that order. Water is less sensitive than oil, but a warm product foams more and a worn valve closes late. Weighing a sample every few hours catches the drift before it reaches the customer.
It follows the raw water analysis, not a standard package. Surface water usually needs multi-media filtration, RO and UV or ozone. Low-hardness municipal water may need only carbon filtration and disinfection.
Gravity holds a fill level, so accuracy depends on bottle geometry. A volumetric filler measures a chamber volume, which keeps it accurate when the format changes. For one rigid bottle size, gravity is enough; for 3-10 L or mixed formats, volumetric is safer.
It depends on whether blowing, packing and palletizing sit in the same hall. Fix the footprint by drawing the layout at 1:100 with conveyor radii included, then check the turning radius of the largest format.
Plan for 380 V three-phase power, 0.6-0.8 MPa compressed air, and a chiller if blow molding runs in-house. Exact consumption belongs in the utility schedule of the quotation, not in a rule of thumb.
For a complete line with blowing, filling, labelling and packing, plan several weeks on site after arrival, plus operator training. Civil work and utility readiness are the usual delay, not the machinery.
Country: Maldives
Product: PET Bottled Mineralized Water
Capacity: 24,000BPH (500ml); 2 Lines
Solution:Water Production Line
Country:Kazakhstan
Product: PET Bottled Sparkling Water, Canned Soft Drink, Canned Tea
Capacity: 25000CPH (250ml)
Solution:Three Lines,7000BPH(1.5L), 15000CPH(330ml),15000CPH(450ml)
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