Dosatron 1-1/2-Inch & 2-Inch Dosing Injectors

Dosatron 1-1/2-inch and 2-inch Dosing Injectors are heavy-duty, water-powered proportional dispensers engineered for high-volume commercial, industrial, and agricultural applications. Operating without electricity, they utilize line water pressure to deliver precise, volumetric dosing of concentrated liquids—such as fertilizers, sanitizers, pH adjusters, and livestock treatments—directly into the water stream. The mechanical proportioning principle ensures a constant, accurate dilution ratio regardless of fluctuations in water pressure or flow rate.

Technical Specifications & Operating Parameters

• Connection Sizes: Primary 1-1/2-inch NPT and specialized 2-inch NPT for ultra-high-flow applications.

• Flow Rate Range: 2.2 to 40 GPM for 1-1/2-inch D40 Series models; 5 to 100 GPM for the 2-inch D20S Series.

• Operating Pressure: Functions within a range of 4.3 to 116 PSI for the D40 Series and 2 to 120 PSI for the D20S Series.

• Maximum Fluid Temperature: 104°F (40°C).

• Housing Materials: Constructed from durable, chemical-resistant polypropylene or polyacetal.

Seal Material Selection for Chemical Compatibility
The choice of internal seal material is critical for injector longevity and chemical safety.

• Viton (VF): The standard for neutral to acidic pH solutions, including most fertilizers, pesticides, acids for pH correction, and surfactants.

• Aflas (AF): Required for alkaline solutions with a pH greater than 7, such as "pH-up" products, calcium hydroxide, calcium carbonate, and potassium carbonate.

• Kalrez (K): Specifically engineered to handle aggressive oxidizers like peracetic acid (PAA), found in advanced sterilants and sanitizers such as ZeroTol and SaniDate.

D40 Series: 1-1/2-Inch High-Volume Injectors
The D40 Series forms the core of the large-format injector lineup, with a maximum flow rate of 40 GPM. It is available in multiple models, each defined by a specific, adjustable dilution range to suit various application needs.

• D40MZ2: Provides a dilution range of 1:500 to 1:50 (0.2% to 2%), equivalent to 7.5 to 75 mL per gallon.

• D40MZ5: Offers a higher-concentration range of 1:100 to 1:20 (1% to 5%), or 37.5 to 190 mL per gallon.

• D40MZ1000: Designed for precise, lower-concentration applications from 1:1000 to 1:100 (0.1% to 1%), or 3.75 to 37.5 mL per gallon.

• D40MZ3000: Engineered for ultra-precise, low-dose applications, with a range of 1:3000 to 1:500 (0.033% to 0.2%), or 1.25 to 7.5 mL per gallon.

Common features across the D40 Series include an integrated bypass valve to take the unit offline without disrupting water flow and a design that allows for installation in parallel to increase total system flow capacity. Many models are also part of the Nutrient Delivery System (NDS), identifiable by an "HY" suffix in the model number, which includes a Schedule 80 threaded union for simplified in-series installation with other system components.

D20S Series: 2-Inch Mega-Flo Injector
The D20SVFII injector, part of the Mega-Flo Series, is engineered for the highest flow requirements, handling up to 100 GPM. It shares the robust, water-powered operating principle but on a larger scale, with a dilution range of 1:500 to 1:50 (0.2% to 2%). This unit is suited for large-scale irrigation, industrial processing, or livestock operations where substantial water volume must be treated.

Maintenance, Calibration, and System Integration
Durability is supported by a structured maintenance program. Key components for upkeep include specific Mini Maintenance Kits for routine service, Seal Kits for annual refurbishment, and complete Rebuild Kits to restore the injector to its original performance specifications. Consistent calibration is essential for maintaining dosing accuracy. For integration into comprehensive automated systems, these injectors are compatible with plumbing kits, monitor kits, and electronic controllers designed for high-flow applications.