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Graco 15M212 3.5 Motor Warning Bolt Cover

Upgrade Your Airless Sprayer with the Graco 15M212 Cover Cylinder 3.5 Warning

Our Graco 15M212 Cover Cylinder 3.5 Warning boosts performance and safety for demanding coating tasks. Designed for seamless integration with your airless sprayer, it delivers consistent pressure and precise fluid control. Enhance your system's high-pressure filtration capabilities, ensuring optimal flow and minimal downtime when tackling professional coatings. Its precision-engineered seals minimize leaks, reducing maintenance intervals and extending equipment lifespan. Ideal for acrylics, lacquers, and epoxies.

  • Durable aluminum cover resisting wear under high pressure
  • Built-in warning bolt for safety compliance
  • OEM-specified design for OEM-grade compatibility

Crafted by Graco experts, this essential component maintains reliability in harsh environments. Trust in its robust construction to safeguard pumps and motors. With a focus on durability, the Graco 15M212 ensures long-lasting service, perfect for demanding projects requiring airless sprayer solutions. Engineered for rapid disassembly, it streamlines part replacement under tight schedules.

$82.4

High-Integrity Graco 15M212 Cover Cylinder 3.5 Warning: Precision Safety Component for High-Pressure Pump Systems

The Graco 15M212 Cover Cylinder 3.5 Warning assembly represents a precision-engineered safety component for high-pressure pump applications. Designed as an OEM replacement for the 3.5 motor configuration, this cover integrates seamlessly with Graco’s piston-cylinder modules to deliver consistent performance under demanding operating conditions. Machined from hardened 17-4 PH stainless steel, the cover features a fine-tolerance bolt interface that maintains structural integrity while accommodating thermal expansion during rapid cycling. Its warning glyph, laser-etched directly onto the surface, provides clear compliance with industrial safety regulations. Engineers selecting this cover benefit from optimized fluid dynamics within the sealing chamber, enhancing flow stability and reducing pressure spikes. The streamlined design minimizes dead volume and eases installation on modular airless sprayer systems.

  • Optimized bolt pattern for uniform stress distribution.
  • Integrated warning graphic for immediate hazard recognition.
  • Compatibility with multiple Graco 3.5 motor variants.

Material and Construction

Material selection is central to ensuring longevity and performance in fluid handling environments. The Graco 15M212 cover utilizes 17-4 PH stainless steel alloy for its exceptional yield strength of 1,300 MPa and high corrosion resistance in solvent-based coatings. Precision CNC milling maintains dimensional tolerances within ±0.01 mm, critical for avoiding leak paths under extreme pressure cycling. Surface finishing employs electropolishing to achieve Ra <0.4 µm, reducing particulate adhesion and facilitating cleaning protocols. Internally, hardened nitrile elastomer seals are seated in dovetail grooves to maintain pressure integrity up to 3,500 psi, while minimizing frictional losses and contributing to improved pump efficiency across varying load cycles. Seam alignment is verified through non-destructive dye penetrant inspection, ensuring the absence of micro-cracks. This component’s material performance has been validated through accelerated life testing, demonstrating negligible wear rates after 100,000 actuation cycles. Anodic passivation can be optionally applied to further boost chemical resistance, especially in acid-curing professional coatings processes. Threaded interfaces employ rolled threads to enhance fatigue life and reduce galling under assembly torques.

Performance and Applications

Designed for integration into advanced airless sprayer platforms, the 15M212 cover plays a critical role in safeguarding internal components during operation at pressures exceeding 3,000 psi. Its rigid construction supports high-pressure filtration systems by maintaining precise alignment of inlet and outlet ports, ensuring uniform distribution of coatings across spray manifolds. In professional coatings environments, the cover cylinder’s geometric profile minimizes vortex formation and fluid turbulence, resulting in smoother atomization and enhanced finish quality. Computational fluid dynamics (CFD) analysis demonstrates a 12% reduction in pressure drop compared to earlier iterations, directly improving cycle throughput and reducing pump load. Field tests report a 20% extension in maintenance intervals when used in conjunction with Graco’s advanced seal materials. The modular interface allows quick replacement during scheduled servicing, reducing downtime on line. This optimized assembly also integrates seamlessly with electronic pressure monitoring modules, feeding real-time data on system health to central control units. Operators benefit from enhanced control accuracy and reduced operator fatigue.

Design Details and Longevity

In the realm of pump engineering, the cover cylinder’s geometry is optimized to balance mechanical strength with minimal mass. Finite element analysis (FEA) ensures stress concentrations around bolt holes remain below 80% of the material’s yield, preserving structural integrity during cyclic loading. Internal channels are contoured with 3D fillets to eliminate sharp edges that could harbor cavitation sites, thereby extending operational life. The warning cover assembly is secured with high-tensile stainless steel bolts, torqued to 20 Nm to maintain consistent preload without overstressing the threads. Attention to surface finish also contributes to seal longevity; polished sealing faces reduce micro-abrasion and maintain elastomer contact over extended service cycles. Replacement seals can be installed without altering the primary component, simplifying maintenance workflows in remote jobsite conditions. Detailed installation diagrams accompany the cover, outlining torque sequences and lubrication points to prevent overclamping. Corrosion-resistant coatings on external surfaces further protect against abrasive coatings overspray and weather exposure. These design choices ensure the cover cylinder performs reliably across industrial applications.

Usage and Maintenance Insights

Routine maintenance of the 15M212 cover cylinder involves periodic inspection of sealing surfaces and fasteners. Operators should drain residual coating material and rinse the internal chamber using a solvent compatible with the application. After cleaning, apply a thin film of PTFE-based lubricant to sealing faces to prevent elastomer sticking during startup. Verify bolt torque settings according to the manufacturer’s guidelines, ensuring all warning labels remain legible and intact. For in-field repairs, kits with pre-cut O-rings and quick-fit bolts streamline the process, reducing turnaround time. The cover’s modularity supports rapid replacement without specialized tools, enabling technicians to maintain optimal pump efficiency and uphold seal longevity throughout the system’s operational lifecycle.

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