The Graco 115484 Pin Actuator delivers consistent, reliable spray control for your equipment. Designed to fit seamlessly into airless sprayer systems, this actuator ensures optimal performance with demanding finishes. Its precision mechanism enhances durability under professional coatings and withstands rigorous high-pressure filtration for long-lasting operation. Ideal for maintenance and service tasks, this compact component reduces downtime and maintains accuracy, making it a go-to upgrade for contractors and technicians.
Whether servicing industrial lines or tackling renovation projects, the Graco 115484 Pin Actuator enhances spray precision and maintains consistent patterns under challenging conditions. Its standardized design enables quick installation and broad compatibility with Graco units, ensuring versatility and ease of maintenance. Trust this compact yet powerful component to support high-volume applications and elevate performance in demanding work environments while simplifying inspection and repair workflows.
$3.53Engineered as a critical metering component for fluid control, the actuator pin in spray systems must withstand rigorous mechanical cycles and maintain precise actuation under fluctuating pressures. As an OEM replacement, the Graco 115484 Pin Actuator features precision-ground tolerances that uphold consistent axial travel and reliable seal engagement. Its streamlined profile minimizes flow turbulence and contributes to enhanced pump efficiency, ensuring durable performance during extended high-pressure operations.
Manufactured from hardened stainless steel with surface-hardened skirts, this actuator pin resists abrasion and chemical degradation even in aggressive media. A proprietary heat-treatment process refines grain structure to minimize wear, while PTFE and NBR seal interfaces preserve seal longevity under thermal cycling. The design also integrates advanced high-pressure filtration compatibility, preventing particulate ingress and maintaining uninterrupted fluid passage across maintenance intervals.
In airless sprayer applications, the actuator pin serves as a core interface between the reciprocating piston and valve assembly. Its optimized geometry delivers fast response times and precise shutoff, critical for fine atomization and consistent spray patterns. Engineered for minimal dead-leg volume, this pin supports fluid velocities up to 2 m/s, reducing surge and ensuring uniform application across varied viscosity ranges in demanding coating operations.
During professional coatings deployment, surface finish consistency and flow rate stability are paramount. The pin’s micron-level concentricity ensures homogenous pressure distribution, essential for high-viscosity polymer or solvent-based formulations. Integrating with diaphragm and piston pumps, this component sustains leak-free operation over thousands of cycles. Its robust interface mitigates backflow, enabling uninterrupted material delivery for panels, structures, and intricate substrates in industrial painting environments.
Detailed CAD modeling informs the pin’s geometry, featuring a tapered nose and precision fuselage to balance sealing force and friction. Tight tolerance ranges of ±0.01 mm on diameter and axial concentricity reduce dead zones and prevent pressure spikes. The chamfered edges facilitate smooth actuator engagement, while surface finishes below 0.2 µm Ra minimize friction and wear between the pin and valve seat during high-frequency cycling.
The core material selection prioritizes corrosion resistance and tensile strength. A 17-4 PH stainless steel backbone undergoes cryogenic stabilization to lock microstructures, while localized induction hardening on wear surfaces extends service life. Elastomeric seals use perfluoroelastomer (FFKM) for chemical resilience, and the dynamic seal grooves are designed to maintain preload over temperature swings. This balanced material set delivers consistent performance under variable pressure regimes.
Validated through accelerated lifecycle testing, the actuator pin endures over one million cycles at 3000 psi without dimensional drift. Actuation forces are calibrated to 5–10 N, offering quick response while preventing seal extrusion. Pressure ratings exceed 30 MPa, accommodating high-pressure filtration requirements. Dimensional stability is confirmed through thermal shock protocols from -20 °C to 80 °C, preserving micron-level precision in extreme environments.
Beyond coating equipment, this actuator pin integrates seamlessly into fluid metering valves, proportioning pumps, and inline flow diverters. Its compact form factor allows modular integration within manifold assemblies, optimizing spatial constraints in skid-mounted systems. Aerospace fluid delivery, automotive underbody sealant dispensing, and marine anti-corrosion treatments benefit from its consistent performance. Engineers leverage its predictable actuation characteristics for closed-loop control in servo-driven fluid systems.
Routine inspection involves verifying pin straightness and surface integrity. Scheduled replacement intervals, often aligned with seal maintenance, ensure uninterrupted system uptime. When wear is detected beyond 0.02 mm radial clearance, the actuator pin is swapped to prevent seal scoring and fluid bypass. Cleaning with non-abrasive solvents and reassembly with calibrated torque prevents distortion, safeguarding long-term reliability and reducing unscheduled downtime.
When integrated within reciprocating pump assemblies, the actuator pin’s friction profile directly influences volumetric efficiency. By minimizing drag through polished surfaces and optimized seal channels, volumetric losses are reduced, elevating pump efficiency by up to 5%. The pin’s design aligns with spool valve dynamics to support rapid stroke transitions, enhancing throughput in multi-cylinder configurations and improving energy utilization in high-output spray systems.
Installation demands precise alignment within the valve bore; use of optical comparators during setup validates concentricity. Calibration steps include verifying actuation timing and dwell period under nominal system pressures, adjusted via preloaded springs or electronic solenoid drives. Secondary seal compression is fine-tuned to deliver leak-free shutoff while maintaining low friction. Adherence to manufacturer torque specifications prevents distortion and ensures sustained operational integrity.
Engineered for demanding industrial environments, this actuator pin combines material science, precision machining, and rigorous testing to deliver repeatable performance. Its wear-resistant surfaces and seal-compatible interfaces extend service cycles, while the compact design supports diverse fluid handling architectures. For engineers specifying components in high-pressure fluid systems, the actuator pin stands as a proven solution that upholds efficiency, reliability, and consistent spray quality across complex applications.
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