The Graco 181320 PIN tailpiece offers precision engineering to maintain optimal performance in airless sprayer setups for applying professional coatings. Its rugged stainless steel construction delivers superior durability and resists corrosion under the toughest job site conditions. Designed to meet exact OEM specifications, this component ensures consistent flow control, reduces wear on internal seals, and supports a smooth coating finish with every application. This replacement part is backed by strict manufacturing tolerances, guaranteeing a perfect fit and long-term operational stability in demanding spray applications.
Upgrade your setup with the PIN tailpiece to enhance reliability under high-pressure filtration demands and minimize backflow. Ideal for contractors working with heavy-viscosity paints or specialized coatings, it integrates seamlessly with standard pump assemblies and quick-disconnect fittings. Routine maintenance is simplified thanks to precision machining, which reduces clogging and extends service intervals while preserving peak performance.
$10.34Precision in fluid dispensing hinges on the tiniest details, and Graco 181320 Pin exemplifies how a single component can influence overall system performance. Engineered to meet demanding tolerances, this pin plays a vital role in regulating paint flow, handling diverse materials from low-viscosity solvents to thick, pigment-rich coatings, and ensuring consistent results under high-pressure conditions. Fluid dynamics specialists appreciate its tight machining tolerances, which minimize leakage and guarantee uniform delivery across repeated cycles. Applications span industrial coatings, automotive refinishing, wood finishing, and OEM assembly lines, making this replacement part indispensable in any setting that demands verifiable accuracy and unwavering reliability. Contributing to improved pump efficiency and reduced energy consumption, it also enhances sealing integrity and extends maintenance intervals.
Crafted from premium-grade stainless steel alloy, this pin undergoes CNC grinding followed by superfine polishing to achieve exceptionally smooth surfaces. Surface roughness falls below Ra 0.4 μm, limiting friction and dielectric accumulation in electrostatic processes. Material hardness is optimized to resist galling and abrasive wear, even when handling aggressive media or particulate-laden fluids. Many engineers integrate this element within an hvlp paint spray gun setup to exploit its robust pressure-handling capabilities, delivering consistent atomization at lower operating pressures and improved overall durability.
Seamless integration into existing assemblies makes replacement straightforward, thanks to standardized dimensional profiles aligned with Graco’s legacy pump models. Alignment with piston and intake seat systems ensures leak-free operation over wide temperature ranges, while cross-reference guides simplify part identification for maintenance teams. Such consistency translates into reduced downtime and quicker service intervals, as crews can swap pins without recalibration headaches. Inventory planners also benefit from universal fit across multiple pump series, enhancing stock flexibility and minimizing spare-parts overhead.
Through rigorous endurance testing, this component demonstrates outstanding flow stability across millions of cycles, maintaining output within ±2% of target volume. Stop-flow characteristics and pressure-decay measurements reveal minimal bypass and near-zero backflow, crucial for high-viscosity or shear-sensitive coatings. Field reports cite a noticeable reduction in pulsation artifacts post-upgrade. Technicians often pair this pin with hplv paint guns during critical application phases to achieve smooth finishes, consistent film build, and optimal transfer efficiency under rapid-cycle production demands.
Achieving peak functionality requires precise handling during installation. Prior to fitting, inspect the seat bore for residue or score marks, and verify that mating surfaces are free of contaminants. A light film of manufacturer-approved lubricant promotes smooth ingress without compromising seal integrity. Avoid over-torquing; excessive force can deform the pin, leading to irregular flow patterns. Document torque values and assembly steps in standard operating procedures to ensure repeatable accuracy across maintenance shifts.
Scheduled inspection and cleaning preserve optimal performance and extend the service life of this critical part. Ultrasonic cleaning baths with neutral pH detergents remove stubborn deposits without damaging the pin’s surface finish. In corrosive environments, periodic dimensional checks confirm that clearances remain within tolerance, reducing the risk of accelerated wear. During pump rebuilds, pairing this pin with fresh filters and seals enhances overall longevity. Service engineers often reference models such as the graco ultra 395 when verifying compatibility and documenting best practices for maintenance crews.
Incorporating this precision-engineered pin can transform application workflows by guaranteeing repeatable, high-quality results and reducing scrap rates across industrial painting or coating operations. Fluid system specialists will find that specifying the correct replacement component alleviates maintenance bottlenecks, increases uptime, and delivers consistent output—even under demanding production schedules. Whether fitting a new pump or refurbishing existing equipment, Graco 181320 Pin proves its worth through reliability, tight tolerances, and proven durability. Partner with authorized distributors to ensure genuine parts, access warranty coverage, and benefit from certified maintenance service.
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