

Monitor fluid clarity and maintain system integrity with the Graco 106217 Cap Lens Assembly, engineered for high-pressure spray systems.
The 106217 Cap Lens Assembly is engineered for demanding industrial finishing environments where high‑pressure flow, stringent visibility and system integrity are essential. Crafted from optical‑grade polycarbonate and equipped with a chemical‑resistant coating, this lens cap ensures clear monitoring of fluid conditions and maintains seal integrity under rigorous service cycles.
| Material | Optical‑grade polycarbonate with anti‑abrasion coating |
|---|---|
| Sealing System | Integrated Viton® sealing bead and dual O‑ring stack |
| Pressure Rating | Up to 5,000 psi (≈345 bar) service‑rated |
| Temperature Range | −20 °C to +80 °C operational |
| Optical Integrity | Transmissivity ≥ 92% maintained after wear testing |
This cap‑lens assembly is manufactured with precision dowel‑pin alignment (±0.01 mm) and chamfered lens edges to reduce stress concentrations under cyclic loading. A plasma‑deposited abrasion‑resistant coating protects the lens face against particulate erosion, while the high‑strength body resists deformation in high‑flow and vibration‑rich environments.
Designed for integration into premium spray modules, the 106217 assembly allows visual verification of fluid clarity, particulate ingress and flow uniformity—without shutting down the system. Its performance supports tighter control of pump cycles, real‑time monitoring and faster diagnostics during coating operations.
Ensure the mounting surface is clean, flat and free of debris. Apply thread locking compound if specified, position the assembly and torque to manufacturer specs. During service, inspect the lens for scratches, clouding or seal wear. Replace if transmissivity falls below threshold or if sealing performance is compromised.
Produced under ISO 9001 processes and full traceability, each unit undergoes nondestructive optical inspections, pressure decay tests and batch verification. This ensures the assembly meets stringent standards for industrial applications in finishing systems.
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