Dosatron® D128R/D25F/D25RE2 Push Rod ORing

Product Overview

A failed or brittle O-ring in a Dosatron injector can compromise your entire fertigation strategy, leading to inconsistent chemical delivery or complete system shutdowns. During the peak of the growing season or mid-summer heat, you cannot afford the downtime caused by a leaking push rod. Supply chain delays often make small specialty parts difficult to source when you need them immediately. By stocking these essential O-rings now, your crews can perform immediate field repairs, ensuring your clients avoid crop loss or nutrient deficiencies while keeping your service schedule on track.

This genuine Dosatron push rod O-ring offers superior chemical resistance and seating properties compared to generic seals that often swell or degrade prematurely. Choosing these OEM components ensures the volumetric accuracy of the D128R and D25 series injectors remains intact, reducing the labor costs associated with repeated troubleshooting and secondary site visits. Maintaining a local inventory of these high-wear parts provides your business with a clear competitive edge through faster response times and reliable system performance in the field.

Product Specifications

Available Models & Sizes

This specific O-ring is engineered for the D128R and D25 series push rod assemblies. Please contact our technical sales team for full service kits, alternative seal materials for specialized chemicals, or bulk quantity pricing for your service trucks.

Key Features

• Genuine OEM replacement ensures a perfect seal and precise fit for the D25 and D128R internal assemblies.
• Advanced elastomer construction provides high resistance to common fertilizers and acidifiers used in irrigation.
• Maintains consistent injection ratios by preventing pressure bypass within the push rod mechanism.
• Durable design resists compression set, extending the interval between required maintenance cycles.
• Quick-swap profile allows your crews to perform rapid field replacements with minimal tools.
• Optimized shore hardness facilitates smooth reciprocation of the rod for long-term motor reliability.

Common Applications

• Agricultural and crop irrigation
• Greenhouse and nursery operations
• Chemical and fertigation delivery
• Commercial landscape irrigation
• Golf course fertigation maintenance
• Municipal sports turf management

Installation Notes

Before installation, ensure the injector is depressurized and the water supply is bypassed. Clean the push rod surface thoroughly to remove any mineral deposits or chemical residue that could compromise the seal. Apply a thin layer of manufacturer-approved silicone lubricant to the O-ring to prevent pinching during reassembly and to ensure smooth movement within the cylinder. Always check for leaks under full operating pressure after servicing the unit.