Dosatron® PJDI117VF Check Valve Assembly

Product Overview

A compromised check valve in your chemical injection system can bring an entire fertigation schedule to a grinding halt. When these components fail, you risk chemical backflow, inaccurate dosing, and potential damage to your main water supply, leading to costly code violations or ruined crops. During the peak of the growing season or mid summer heat, equipment downtime is a luxury your clients cannot afford. With global supply chains remaining unpredictable, waiting until a valve fails to secure a replacement often means weeks of back-orders. Planning ahead and securing this critical assembly now keeps your systems running at peak efficiency and ensures your projects remain on schedule when every drop counts.

The Dosatron PJDI117VF Check Valve Assembly represents a significant technical upgrade over generic or lower grade alternatives. Engineered specifically for the D14 series injectors, this assembly features chemical resistant seals that prevent the premature degradation often seen in standard components. By utilizing this genuine OEM part, your crews spend less time on repeated maintenance calls and more time on new installations. This assembly ensures consistent pressure thresholds and prevents siphonage issues, providing your business with the competitive edge of delivering reliable, precise nutrient delivery systems that stand up to professional use.

Product Specifications

Available Models & Sizes

The PJDI117VF is the standard check valve assembly designed specifically for the Dosatron D14MZ series units with VF seals. While this assembly is a universal fit for the specified injector model, different seal materials like Aflas or EPDM may be required for specific acid or alkaline applications. Please contact our technical sales team for full configurations, bulk pricing, or compatibility checks with other chemical injection models in your fleet.

Key Features

• Constructed from chemical resistant industrial polymers to prevent housing fatigue and cracking.
• Equipped with high quality Viton seals to withstand common fertilizers and mild acids.
• Precision weighted internal components ensure immediate sealing to prevent backflow during system cycles.
• Direct OEM replacement design allows for seamless integration without modifying the injector body.
• Streamlined internal geometry reduces turbulence and maintains accurate injection ratios.
• Modular assembly design simplifies future seal replacements and internal cleaning for your service crews.

Common Applications

• Commercial landscape irrigation
• Agricultural and crop irrigation
• Greenhouse and nursery operations
• Golf course maintenance and fertigation
• Chemical/fertigation delivery
• Municipal parks and public spaces

Installation Notes

To install the PJDI117VF Check Valve Assembly, first ensure the system is depressurized and the water source is shut off. Hand tighten the assembly onto the suction hose connection point of the injector, taking care not to over torque the threads as this can damage the seals or housing. For optimal performance and code compliance, always ensure the suction tube is clear of debris before reconnecting. Manufacturers recommend a periodic inspection of the internal spring and seat every season to maintain dosing accuracy and prevent backflow into the water supply.