Dosatron Hobby System SYSD15RE05VF – 4 Inline Proportional Dosers for Electricity-Free Irrigation

Four bottles, four pumps, zero electricity

The Dosatron Hobby SYSD15RE05VF System is a complete, pre-assembled, and ready-to-install dosing line: 4 D15RE05VF proportional dosers + 5 fittings that connect them in series along the same irrigation pipe. Each pump injects a different product, so you can deliver a four-part recipe in a single pass of water.

Dosatron has been manufacturing hydraulic proportional dosing pumps in Tresses (France) since 1974. They are installed in-line with the irrigation water and use the pressure of the water itself as the sole driving force: zero electricity. They draw the concentrate from the bottle and inject it at a fixed percentage of the flow rate, so the dose is always proportional to the volume of water even if the flow rate and pressure vary. That is exactly what a peristaltic pump does not do.

What's included

• 4 Dosatron D15RE05VF dosers (0.05–0.5%, Viton seals)
• 5 fittings for in-series assembly
• Mounting bracket for wall or structure mounting
• Suction hose for each doser
• Weighted filter for the bottom of the bottle
• Connections required to seal the line

Specifications

• Water flow rate: 100–1,134 l/h
• Operating pressure: 2.5–6 bar
• Dosing: 0.05–0.5% per pump
• Connection: 3/4" BSP
• Expandable: up to 8–9 injectors in series
• Total weight: 6.585 kg

For what cultivation scale?

The Hobby System is sized for installations of 12 to around 96 plants, that is, in the range of 4 to 6 lights. Above that flow rate (1,134 l/h), you need to move up to the D3RE / D14MZ range, which goes up to 3,000 l/h.

How to choose your Dosatron

1. Installation flow rate. Up to around 1,100 l/h → Hobby range. Up to 3,000 l/h → D3RE / D14MZ range.
2. Available pressure. The Hobby range requires a minimum of 2.5 bar—this is the most common mistake, it will not work with 1.5 bar mains pressure. The D3RE starts from 0.3 bar.
3. Recipe percentage. Concentrated base fertilizer → 0.2–2% (D3RE2). Additive, pH adjuster, or silicate → 0.03–0.3% (D3RE3000).
4. Product chemistry. VF (Viton) for neutral or acidic; AF (Aflas) for alkaline.
5. One pump per bottle. A four-part recipe requires 4 pumps in series. That is why this system comes with four.

Expand it and maintain it

• D15RE05VF Expansion Doser (ref. 500205): the standalone unit for adding a fifth (or sixth, or seventh...) bottle to this system, up to 8–9 injectors in series.
• Dosatron Hobby Kit: the flagship product of the range, if you do not yet have the line assembled.
• Dosatron Line Accessories: starter kit, monitor kit, mixing chamber, and water hammer arrestor—the latter is highly recommended with several pumps in series.
• Valve Maintenance Kit: it is the spare part for the Hobby range (D15RE05VF and SYSD15RE05VF). Keep one in stock.

At GrowIndustry we only work with proven quality products and trusted brands.

Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.

Your satisfaction is our priority.

1. First, measure the pressure in your system: the system requires a minimum of 2.5 bar to operate.
2. Fix the mounting bracket to the wall or structure at a height that keeps the containers below it and accessible.
3. Mount the four dosers on the bracket and connect them using the 5 fittings, paying attention to the water flow direction marked on each body.
4. Connect the 3/4" BSP inlet to the irrigation line, with an upstream filter, and the outlet to the drip line.
5. Place each weighted suction hose with its filter into its container and adjust the percentage of each pump according to the recipe (0.05 to 0.5%).
6. Slowly open the water valve, bleed the air, and check the EC and pH at the outlet before irrigating the crop.