ASCO 312-577 Repair Kit

The ASCO 312-577 Rebuild Kit is a comprehensive maintenance solution engineered specifically for high-performance ASCO solenoid valves. Designed to restore optimal pressure containment and flow characteristics, this ASCO valve repair kit includes a precision-machined core assembly, high-grade NBR (Nitrile) seals, and stainless steel springs. These components are critical for maintaining the tight tolerances required in 2-way solenoid valves, ensuring reliable seating and preventing internal leakage in air or water applications. For the service technician, utilizing a genuine ASCO 312577 kit ensures full compatibility with Series 8210 valve bodies, maintaining the original design pressure ratings and response times. Field technicians prioritize this kit for its ability to eliminate solenoid hum and chatter caused by worn pilot orifices or debris-fouled diaphragms. Replacing these valve internal components during scheduled maintenance prevents catastrophic failure and extends the operational lifespan of the fluid control system.

• Chemical Resistance: Equipped with NBR elastomers for excellent compatibility with air, inert gas, and water.
• Precision Engineering: Restores factory-spec MOPD (Maximum Operating Pressure Differential) to your solenoid valve assembly.
• Hardware Quality: Includes 300-series stainless steel springs to resist corrosion and ensure consistent cycle life.
• Ease of Installation: Contains all necessary O-rings and gaskets to perform a complete swap-out of the valve internals.

What ASCO valve series is the 312-577 kit compatible with?
This rebuild kit is primary designed for ASCO 8210 Series valves, specifically those with 3/8" to 3/4" NPT pipe sizes using standard NBR seals.

Can I use this kit for high-temperature steam applications?
No, this kit features NBR seals. For steam or high-temp media, an EPDM or Viton-based ASCO replacement kit would be required to ensure thermal stability.

How do I know if my solenoid needs a rebuild vs. a coil replacement?
If the valve is leaking through or failing to open despite the coil receiving proper voltage and creating a magnetic field, the internal plunger or diaphragm in the 312-577 kit likely requires replacement.

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.