Dosatron® D128R Wishbone Spring Valve Assembly

Product Overview

A compromised check valve or weakened spring in your fertigation system is a single point of failure that can lead to immediate system shutdowns and uneven nutrient delivery. When the peak growing season hits and your crops depend on precise chemical injection, a snapped or corroded wishbone spring can result in significant crop loss or costly downtime. With seasonal supply chains often experiencing long lead times and back-orders, waiting until a failure occurs is a risk your operation cannot afford. Reliable professionals know that stocking critical wear parts now provides the relief of keeping your projects on schedule and your client systems running without interruption during the summer heat.

The Dosatron D128R Wishbone Spring Valve Assembly is engineered for superior chemical resistance compared to generic aftermarket components that degrade quickly under pressure. By choosing genuine Dosatron replacement parts, your crews reduce the frequency of maintenance calls and avoid the labor costs associated with repeated repairs on the same unit. This assembly ensures the volumetric proportioning remains accurate, protecting your reputation for precision and giving you a competitive edge by maintaining system integrity long after the initial installation.

Product Specifications

Available Models & Sizes

This specific assembly is designed for the Dosatron D128R series; however, various valve components are available for the broader D14 and D25 models. Please contact our technical sales team for full configurations, bulk pricing, or to verify compatibility with your specific injector serial number.

Key Features

• Corrosion-resistant stainless steel construction ensures long-term durability in harsh chemical environments.
• Precision-tensioned wishbone spring maintains consistent valve seating for accurate dosing performance.
• Direct OEM fitment reduces installation time and eliminates the need for field modifications.
• Comprehensive assembly design includes all necessary components for a complete valve refresh.
• Robust material selection resists fatigue from high-frequency cycling in commercial applications.
• Engineered to maintain a tight seal, preventing backflow and protecting the main water supply.

Common Applications

• Agricultural and crop irrigation
• Greenhouse and nursery operations
• Chemical and fertigation delivery
• Commercial landscape irrigation
• Golf course and sports turf maintenance
• Potable water supply systems

Installation Notes

Before beginning the replacement, ensure the water supply is shut off and the system pressure is fully relieved to prevent injury. Your crews should use standard non-marring tools to disassemble the injector body and carefully seat the new wishbone spring assembly according to the manufacturer's diagram. Always check for proper orientation of the valve components and perform a brief leak test at low pressure to ensure code compliance and verify that the unit is drawing concentrate correctly.