Overview
The Asco 306633 rebuild kit is a factory-engineered maintenance component designed to restore ASCO 8040 Series direct-acting solenoid gas valves to OEM performance specifications. Specifically engineered for 2-way direct-acting gas shutoff valves with AC coils—including models 8040G021, 8040G022, and 8040G023, this kit provides a cost-effective alternative to full valve replacement. Asco rebuild kits contain all of the parts that are subject to wear as well as detailed installation instructions.
Key Features
- Complete Seal Overhaul: Each kit includes high-wear internal components such as the diaphragm assembly, bonnet gasket, main body gasket, piston U-cup lip seal, and retaining ring, ensuring a complete seal overhaul.
- OEM-Spec Compatibility: Contractors ensure full compatibility with the original valve body and maintain the integrity of fluid control systems handling air, inert gas, or light oil.
- Eliminates Common Failure Points: Designed for high-cycle industrial and combustion control applications, this ASCO valve repair kit eliminates common failure points like internal leakage or slow actuation caused by degraded elastomers.
- Certified Components: Standards include CSA, FM, UL Listed certification for industrial-grade reliability.
Technical Specifications
- Kit Contents: Bonnet gasket, diaphragm assembly, main body gasket, disc holder, piston U-cup lip seal, retaining ring, spring, clip
- Solenoid Type: AC coil
- Elastomer Material: NBR elastomers
- Pressure Rating: 2 PSI for air and inert gas
- Coil Wattage (AC 60Hz): 11.80W
- Certification: UL, CSA, FM Listed
- Condition: New in Box
Typical Applications
The Asco 306633 rebuild kit serves industrial automation, HVAC combustion control, and gas-fired heating systems requiring reliable solenoid valve operation. Optimized for high-frequency combustion control and HVAC fluid control systems, this kit extends valve service life in predictive maintenance programs and emergency repair scenarios. It is ideal for field technicians performing in-service restoration of pilot gas shutoff valves in boilers, furnaces, and industrial burner systems.
Compatibility & Replacements
Compatible With
- ASCO 8040G021, 8040G022, 8040G023 solenoid valves
- Grainger items 4ELZ5, 5LU23, 5LU24
- ASCO 8040 Series AC-coil direct-acting gas shutoff valves
- Air, inert gas, and light oil applications
Replaces / Drop-In Replacement For
The Asco 306633 is the OEM rebuild kit specifically designed for ASCO 8040 Series solenoid valves. Verify your valve’s model number on the nameplate before ordering. Always cross-reference the valve catalog number with ASCO documentation to confirm kit compatibility.
Works With
- ASCO 8040 Series solenoid valve bodies (AC-coil models)
- Direct-acting 2-way gas shutoff valve systems
- Industrial burner control systems
- HVAC heating and combustion applications
- Field maintenance and repair workflows
