Dosatron D8RE3000 Doser 1:3000 to 1:800. Bypass, Acid Duty Seals

What a Dosatron 40 GPM Injector Does Without Any Electricity The Dosatron D8RE3000 needs no electrical supply of any kind. Water pressure drives a piston, and that piston draws concentrate from a drum. The mix leaves at a fixed ratio no matter how the flow varies. It is rated from 500 l/h up to 8 m3/h, or 2.2 to 40 GPM. Operating pressure runs 0.15 to 8 bar, or 2.2 to 116 PSI. Connections are 1-1/2 in male NPT. Maximum water temperature is 104 degrees Fahrenheit, which matters on any line that carries warmed water. The unit weighs about 7.3 lbs. Overall height is 26.3 in with a width of 8.5 in. Concentrate is drawn through a PTFE suction tube at a rate between 0.15 and 10 litres an hour. Reading the Part Number Before Committing to a Chemical Dosing System The suffix on this part number is not decoration, and it changes what the unit will tolerate. The legend is as follows. RE means the ratio is adjustable rather than fixed. VF denotes the dosing seals for acid side additives, covering pH 1 through 7, where AF covers the alkaline range instead. K is the version rated for strong acids above 15% concentration. BP is the integrated bypass, which lets a grower shut injection off and run plain water down the line without unplumbing anything. II is only the regional code for North and Central America. So this is the adjustable 1:3000 to 1:800 model in its acid duty build, with a bypass fitted. The ratio range translates into real dosing numbers. At 1:3000 you are adding 0.033 percent, which is 1.26 mL per gallon. At 1:800 that climbs to 0.125 percent, or 4.73 mL per gallon. Those are small volumes, and that is the point of this ratio band. It suits concentrated products, acids and sanitisers rather than general feed. If a crop needs 1:500 to 1:50 the D8RE2 is the sibling model, and 1:100 to 1:20 is the D8RE5. Key Features No electricity at all: Water pressure drives the piston, so there is nothing to plug in. Ratio holds under changing flow: The dose stays proportional whether the line runs fast or slow. 1:3000 to 1:800, adjustable: That is 0.03 to 0.125 percent, set on a graduated sleeve. Acid duty dosing seals: The VF seals cover pH 1 through 7, with K rated above 15% acid. Integrated bypass fitted: Shut injection off and send plain water down the same line. 1-1/2 in male NPT: Sized for a main line rather than a single bench feed. 2.2 to 116 PSI operating window: Which is 0.15 to 8 bar. Ships with what it needs: Mounting bracket, PTFE suction tube, strainer and owner's manual. Technical Specifications Specification Value SKU D8RE3000VFBPIIK Brand Dosatron Model D8RE3000, the adjustable 1:3000 to 1:800 unit Water flow range 500 l/h to 8 m3/h (2.2 to 40 GPM) Operating water pressure 0.15 to 8 bar (2.2 to 116 PSI) Injection ratio 1:3000 to 1:800 Dosage percentage 0.03 to 0.125% Dose per gallon 1.26 mL at 1:3000 up to 4.73 mL at 1:800 Ounces per gallon 0.043 to 0.160 Concentrate draw 0.15 to 10 l/h Connections 1-1/2 in male NPT, 40 x 49 mm Maximum water temperature 104 degrees Fahrenheit (40 C) Unit weight About 7.3 lbs Overall dimensions 26.3 in high x 8.5 in wide, 6.9 in diameter Suction tube PTFE, 4 x 6 mm, 1.75 m long RE in the part number Adjustable ratio rather than a fixed one VF in the part number Dosing seals for acid side additives, pH 1 to 7 K in the part number The version rated for strong acids above 15% concentration BP in the part number Integrated bypass for manual additive shut off II in the part number Regional code for North and Central America Supplied with Mounting bracket, suction tube, strainer, owner's manual Siblings in this range D8RE2 at 1:500 to 1:50, D8RE5 at 1:100 to 1:20