Dosatron PLUNGER ASSY AF SEAL FOR D8RE3000

The Mechanical Core for Ultra-Low Dose Precision The Dosatron Plunger Assembly (Part #8PJ074AF) is the primary internal engine responsible for the volumetric suction within D8RE3000 series injectors. Engineered for high-flow environments up to 40 gallons per minute, this assembly is specifically calibrated for ultra-precise low-dose applications, maintaining a consistent 1:3000 to 1:800 (0.03% to 0.125%) injection ratio. As a genuine OEM replacement, it restores the mechanical integrity required to draw concentrated additives into the mixing chamber, ensuring that sensitive crop treatments or water sanitation protocols remain accurate regardless of mainline pressure fluctuations. Industrial Aflas Sealing for High-pH Applications This "AF" designated assembly features specialized Aflas seals, providing superior resistance to alkaline chemicals, high-pH fertilizers, and aggressive detergents. Unlike standard seals that can become brittle or fail when exposed to basic solutions, Aflas maintains its structural flexibility and sealing power, preventing vacuum leaks and protecting the injector's internal motor from wear. This complete plunger unit allows for a rapid field replacement, eliminating the need to install individual O-rings and significantly reducing maintenance downtime in commercial greenhouses, nurseries, and industrial water treatment facilities. Key features: Direct D8RE3000 Series Replacement: Specifically engineered for 40 GPM ultra-low dose injectors, ensuring a perfect factory fit and immediate restoration of dosing precision. Aflas (AF) Seal Integration: Provides industry-leading resistance to alkaline chemicals and high-pH additives, preventing premature seal failure and suction loss. Ultra-Precise Low-Dose Suction: Maintains the factory-calibrated 1:3000 to 1:800 injection ratio for critical chemical applications and water treatment. Heavy-Duty High-Flow Construction: Built to handle the mechanical stresses and hydraulic forces of industrial irrigation systems operating at up to 40 GPM. Complete Maintenance Solution: Simplifies complex field repairs by providing a pre-assembled plunger unit, reducing labor costs and system downtime.