The Graco 114481 Switch, Reed is a precision-engineered component designed for high-volume pumping systems in demanding industrial environments. Lightweight yet robust, this reed switch delivers consistent actuation and exceptional longevity, reducing downtime and ensuring seamless performance in your airless sprayer assemblies. Crafted with corrosion-resistant materials and precision magnetics, it offers superior responsiveness and compatibility with diverse formulations and high-pressure filtration operations. Easy to install and calibrated for optimal sensitivity, this OEM-grade replacement elevates fluid delivery accuracy and equipment reliability across a variety of applications.
Combine this switch with industry-leading valves to optimize your selection of professional coatings equipment. Exceptionally suited for rugged job sites, it maintains precise trigger response even under high-pressure filtration conditions and abrasive media. By enhancing system integrity and reducing service cycles, it supports superior finish quality and extended uptime, making it an essential upgrade for contractors, painters, and finishers seeking uninterrupted, high-performance operations.
Graco’s OEM reed switch, part number 114481, serves as a critical sensing element within fluid handling assemblies, providing accurate magnetic actuation when integrated into piston-driven modules and control manifolds. This small-form sensor is engineered to detect plunger positions, flow cycles and pressure end stops in diaphragm and piston pumps. Its design is optimized for use in high-pressure, dynamic systems where precise switching events can influence overall pump efficiency, cycle consistency, and system response times. Suitable for retrofit or original equipment integration in equipment such as dark-colored chemical dispensers, inline monitors, and specialized airless sprayer rigs, the Graco reed switch offers robust performance across broad industrial environments.
Functionally, this reed switch features two hermetically sealed ferrous reeds enclosed in a welded stainless housing, delivering consistent response under repeated magnetic exposure. The slim profile and epoxy-based potting compound ensure ingress protection against slurry, solvent vapors and fine particulates, extending operational life even in demanding environments. Chemical resistance to aggressive coatings and solvent blends is balanced by a nitrile O-ring interface on the assembly mount, preventing leakage at flange ports. Enhanced spring-return sensitivity allows end-of-stroke detection with minimal magnetocaloric hysteresis, leading to stable actuation thresholds through thousands of cycles, which contributes to extended seal longevity in intermittent duty cycles.
Constructed from 304L stainless steel, the enclosure resists pitting from corrosive cleaning agents and protective professional coatings. Internally, a precise 0.010" reed gap minimizes contact bounce, and gold-nickel plating enhances corrosion resistance. The unit’s seamless design reduces dead volumes for improved cleanability, while glass-to-metal seals maintain vacuum integrity across -40 °F to 180 °F. Pressure-tolerant epoxy fills further fortify the reed chamber, preventing moisture ingress and supporting consistent magnetic response throughout thermal cycling.
The reed switch supports up to 500,000 actuation cycles at rated load, providing high reliability for continuous duty industrial pumps. Electrical specification includes a maximum switching capacity of 15 W and contact resistance below 100 milliohms after 10,000 actuations. Typical operate time is 0.5 ms with release time under 0.3 ms, ensuring rapid feedback for closed-loop control systems. Mechanical vibration tolerance up to 10 g RMS at 20–2000 Hz and shock ratings of 50 g meet IEC standards. By delivering precise actuation signals, this switch contributes to optimized feedback loops that improve pump efficiency and overall system energy performance.
Installation is straightforward via a standard 1/4"-28 UNF threaded adapter or low-profile DIN clip, accommodating panel thicknesses from 0.062" to 0.250". The M4 threaded mounting holes align with common bracket patterns for swift retrofit. Electrical termination utilizes insulated quick-connect tabs (0.110" × 0.020") with recommended crimp torque of 0.2 Nm to prevent lead fatigue. Users should maintain a 0.125" clearance between the switch body and adjacent magnetic field sources to avoid false triggering. Color-coded teflon-coated leads simplify polarity checks during commissioning, reducing downtime in field service operations.
With an MTBF exceeding 100 million cycles under rated loads, maintenance requirements are minimal. Its epoxy-metal seal repels ingress when downstream high-pressure filtration units introduce fine particulates, and it withstands rapid backpressure variations. Periodic inspections every 1,000 hours suffice to verify mounting and lead condition. Classified to IP67 when installed correctly, the component complies with RoHS and industry chemical exposure standards. The absence of mechanical springs or lubricants in the reed assembly eliminates key wear points, enhancing long-term reliability.
Engineers leverage the Graco 114481 reed switch in diverse applications such as paint dispensing equipment, adhesive metering pumps, and precision laboratory instruments. In conjunction with proportional valves, it enables closed-loop control for consistent batch-to-batch processing in automotive refinish and marine coating lines. Its compact size makes it suitable for tight envelope designs, and the robust construction delivers reliable performance in both low-viscosity fluid handling and abrasive cyclic operations. By integrating this switch into PLC systems, technicians can monitor actuator position in real time, optimize cycle timing, and achieve process repeatability essential for quality assurance in large-scale production.
In modern fluid control architectures, the Graco 114481 reed switch elevates system performance by enabling real-time feedback and advanced diagnostics on pump cycle states. Its compact footprint contributes to space-efficient manifolds, and the hermetic design reduces leak paths, thereby improving seal longevity and minimizing contamination risks. Integration with networked controllers and IoT platforms allows predictive maintenance algorithms to trigger alerts before faults occur, reducing unscheduled downtime and optimizing throughputs. By leveraging precise actuation signals, operators can fine-tune valve curves and torque profiles, ultimately enhancing pump efficiency and consistency in high-demand industrial processes.
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