The Mechanical Core for High-Flow Dosing Precision
The Dosatron Plunger Assembly (Part #8PJ069AF) serves as the primary suction engine for the D8RE5AF series, the industrial-grade injector capable of handling water flow rates up to 40 gallons per minute. This assembly is responsible for creating the volumetric vacuum that draws concentrated additives into the mixing chamber, where they are blended uniformly with the mainline water flow. As a genuine OEM replacement, the 8PJ069AF restores the factory-calibrated precision of your unit, ensuring that your nutrient or chemical delivery remains constant at the desired 1% to 5% injection ratio, regardless of fluctuations in water pressure or flow speed.
Industrial Aflas Sealing for Alkaline Applications
What distinguishes the "AF" model is the integration of specialized Aflas seals, which are specifically formulated for superior resistance to high-pH, alkaline chemistries and specialized industrial additives. While standard seals may degrade when exposed to aggressive alkaline products, Aflas maintains its structural integrity and sealing power, preventing vacuum leaks and ensuring a long service life in demanding environments. This complete plunger assembly allows for a rapid field replacement, eliminating the need to install individual seals and significantly reducing maintenance downtime. It is a critical component for maintaining the reliability of your facility's integrated pest management, sanitation, or fertigation protocols.
Key features
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Direct OEM Replacement: Specifically engineered for the Dosatron D8RE5AF series, ensuring a perfect factory fit and immediate restoration of 40 GPM dosing accuracy.
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Aflas (AF) Seal Integration: Provides industry-leading resistance to alkaline chemicals and high-pH additives, preventing premature seal wear and suction failure.
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Restores Volumetric Precision: Replaces worn internal plunger components to maintain a consistent 1:100 to 1:20 injection ratio for sensitive crop or facility treatments.
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Heavy-Duty High-Flow Construction: Built to handle the rigorous mechanical stresses of irrigation systems operating up to 40 GPM and 116 PSI.
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Complete Maintenance Solution: Simplifies complex repairs by providing a pre-assembled plunger unit, reducing labor costs and system downtime in commercial greenhouses.