The D14MZ520 is engineered for applications that require higher concentrate injection rates while maintaining the accuracy and consistency Dosatron is known for. Powered solely by water flow, it delivers precise dosing from 5% to 20% (1:20 to 1:5 dilution ratios) without the need for electricity. Its water-driven dosing technology automatically adjusts to changing flow conditions, helping maintain a stable chemical concentration throughout the process. This results in better chemical utilization, improved process consistency, and dependable performance across a wide range of industrial applications.
- Connection Size: 3/4" NPT
- Percentage Range: 5 to 20%
- Unit Weight: 8.8 lbs
- Ounces Per Gallon Range: 6.400 to 25.60
- Flow: 0.05 to 9 GPM (0.19 to 34 LPM)
- Pressure: 7 to 57 PSI
- Dimensions: 26 1/8" x 10 1/4"
- Ratio Range: 1:20 to 1:5
Included Accessories:Mounting bracket, suction hose, weighted strainer, and quick start guide.
Pressure loss

Viscosity limits

To maximize dosing accuracy and equipment life, the D14MZ520 is best installed on a properly designed bypass system that allows for easy isolation and maintenance. Incorporating filtration upstream of the injector helps protect internal components from debris, while check valves and backflow prevention devices safeguard both the water supply and chemical concentrate. Positioning the concentrate tank near the injector and keeping the suction line as short as practical helps maintain consistent chemical draw and reliable operation. Dosatron also offers dedicated industrial plumbing kits and panel systems designed to simplify installation and optimize performance in demanding environments.
Every application is different. Flow rates, water quality, chemical compatibility, and installation requirements all impact the best injector configuration.
Contact a Dosatron expert today to determine the ideal setup for your application.
Find your maintenance kit in seconds — just check how long your pump has been in service.
Time in service | Recommended kit | Why | Buy Now |
|---|---|---|---|
Under 6 months | Mini Maintenance Kit | Quick refresh of the wear parts that go first — keeps dosing accuracy on spec. | Click here |
6 months – 2 years | Seal Kit | Replaces the seals and O-rings before leaks and dosing drift start. | Click here |
Over 2 years | Rebuild Kit | A full internal overhaul — restores your pump to factory performance. | Click here |
Over 5 years | Talk to our team | At this stage the motor piston typically needs replacing. We'll confirm the right solution for your unit. |
Need a single replacement part instead of a full kit?
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