The Graco 15J802 Cover Solenoid delivers reliable performance for airless sprayer systems, ensuring seamless integration with pumps and consistent flow during high-volume professional coatings projects. This precision-engineered cover safeguards the solenoid from debris and corrosion, maintaining optimal responsiveness and extending the service life of your equipment. Installation is straightforward with no special tools required, reducing downtime. Perfectly suited for contractors and industrial painters, it supports both solvent-based and waterborne materials, enhancing productivity on jobs.
Engineered for high-pressure filtration environments, the 15J802 Cover Solenoid coexists with advanced filtration systems to prevent clogging and ensure uninterrupted performance under intense operating conditions. Its robust polymer construction offers chemical resistance and simplifies maintenance intervals, while precise tolerances guarantee a secure fit on Graco pumps. Integrates seamlessly with Graco’s signature high-flow valves to support faster cycle rates and maximize pump efficiency. Upgrade your maintenance routine to achieve flawless finishes, consistent coverage, and extended equipment longevity across diverse professional coatings applications.
$6.93The Graco 15J802 Solenoid Cover plays a critical role in safeguarding the electromagnetic coil assembly of Graco proportioning pumps and valves. Engineered to maintain structural rigidity under continuous high-pressure cycles, this replacement cover is precision-molded from chemical-resistant polymer with an oil-filled interior chamber to protect the solenoid coil from contamination. The robust design ensures consistent field service life and contributes to stable voltage response and rapid actuation timing in demanding industrial spray applications. Installation is straightforward on legacy Graco controllers and proportioners, with drop-in compatibility across multiple model series. As a core component in modern fluid delivery networks, this cover enhances the reliability of an airless sprayer module even under elevated thermal stress.
In high-performance finishing systems, maintaining fluid integrity depends on every component from pump inlet to nozzle tip. The 15J802 cover is engineered to preserve the integrity of the solenoid chamber against particulate ingress and solvent attack. Its internal geometry aligns the plunger guide and sealing surfaces to minimize side loads, improving harmonic balance and extending overall seal longevity. The cover’s rib-reinforced structure resists deformational creep under cyclic magnetic forces, thereby reducing stray flux loss and boosting net actuation force. Testing in booth-mounted prime and purge cycles demonstrates enhanced response consistency, which is vital for precise material deposition when applying professional coatings to critical aerospace, automotive, or marine substrates. Maintenance schedules can be extended and pump downtime minimized, resulting in improved pump efficiency throughout the production run.
Manufactured from a thermoset polyester blend optimized for solvent resistance, the 15J802 component exhibits superior dimensional stability across a broad temperature window. The high-strength acrylic filler in the polymer matrix dampens vibration and reduces acoustic noise during electromagnetic transitions. Finite element analysis (FEA) verified that the rib pattern and wall thickness distribution achieve less than 0.2% deflection at pressures up to 5,000 psi. The integrated O-ring groove accepts industry-standard fluorocarbon seals, ensuring chemical compatibility with epoxy, urethane, and polyurea chemistries. The low-permeability profile prevents hydraulic fluid migration into the coil cavity, preserving dielectric characteristics and preventing coil saturation. Overall, material selection and mold tooling precision converge to deliver consistent part-to-part tolerance within micrometric accuracy.
Operational qualification tests indicate that the 15J802 cover sustains over 1,000,000 operational cycles without measurable wear on the coil housing interface. In accelerated aging chambers, thermal cycling between -20°C and 80°C did not induce micro-cracking or seal degradation. Flow tests conducted in tandem with high-pressure filtration modules confirmed that the cover design does not impede fluid paths or create localized turbulence that could compromise volumetric accuracy. When integrated into proportioning systems with tungsten carbide valves, the cover contributes to a 15% faster purge cycle and consistent shot-to-shot repeatability. These performance metrics underscore the component’s ability to support next-generation automated finishing cells while maintaining regulatory compliance and operational safety standards. Additionally, the cover’s EMI shielding properties maintain electromagnetic compatibility in densely packed control cabinets.
During scheduled preventive maintenance, technicians should inspect the cover seat surface and O-ring groove for signs of nicks or compression set. Replacing the fluorocarbon seal at intervals aligned with the fluid median chemical cycle life prevents marginal leaks and maintains optimal seal longevity. When reinstalling, apply a thin film of fluorinated grease to the O-ring and verify that the fastener torque is within the specified 20-25 in-lb range to ensure uniform clamp force. In systems utilizing multi-stage pressure relief valves or integrated high-pressure filtration manifolds, aligning the cover orientation with the coil return spring axis reduces mechanical wear on adjacent components. Detailed record-keeping of part serial codes via Graco documented service tags accelerates troubleshooting and future retrofits, especially in environments handling abrasive or pigmented materials where abrasive particle impact can influence housing integrity.
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