ASCO 302-276 Rebuild Kit

The ASCO 302-276 Rebuild Kit is a field-proven solution for restoring critical solenoid valve performance in commercial and industrial HVACR systems. Specifically engineered for ASCO valve models 3UL19 and 3UL21, this kit allows technicians to perform a complete internal overhaul without replacing the entire valve body. By utilizing genuine OEM replacement parts, you ensure the assembly maintains its original 15-digit product code specifications and pressure ratings. This kit addresses common failure points such as internal leakage, sticking cores, and diaphragm wear. It is essential for high-cycle applications where fluid control reliability is non-negotiable. Whether you are servicing units for air, water, or light oil, these precision-engineered components provide the exact tolerances required to eliminate bypass issues and restore fast-acting pilot performance. Keep your systems within operational parameters and minimize unplanned downtime by keeping a 302-276 repair kit in your service vehicle.

• Precision Compatibility: Designed specifically for ASCO 3UL19 and 3UL21 solenoid valves, ensuring an exact fit for the core assembly and diaphragm seat.
• Comprehensive Service: Includes a high-grade diaphragm/seat assembly, core tube, springs, O-rings, and clips for a thorough top-to-bottom rebuild.
• Operational Consistency: Restores peak flow characteristics and pressure-holding capabilities to original factory standards.
• Reduced Maintenance Costs: Avoid the expense of total valve replacement and labor-intensive piping changes by servicing the existing valve body.

• How do I know if the 302-276 is the correct kit for my valve? Check the nameplate on your ASCO valve. This kit is the standard rebuild solution for the 3UL19 and 3UL21 series. Always verify the 15-digit code or serial number before installation.
• Does this kit resolve issues with a humming or buzzing solenoid? While humming is often caused by a faulty solenoid coil or debris, this kit includes the core tube assembly and springs which frequently resolve mechanical vibrations and sticking issues.
• Can I use this kit for high-temperature steam applications? This specific kit is optimized for standard fluid control. For high-temp or specialized chemical applications (like those requiring Viton or EPDM), please verify the suffix of your valve model to ensure material compatibility.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.