Ensure consistent spray performance with the Graco 189557, designed for demanding professional projects. This compact airless sprayer component offers pinpoint pressure adjustment, delivering uniform coatings every time. Perfect for contractors using professional coatings, it integrates seamlessly into existing high-pressure filtration systems to maintain flow stability and protect expensive spray guns. Its durable construction and easy-to-read gauge guarantee professional-grade performance in every application.
Upgrade your airless sprayer setup with this essential Restrictor Air Regulator. Its reliable design optimizes airflow, reduces overspray, and extends pump life. Engineered to handle high-pressure demands, it enhances spray control and reduces downtime. Trusted in architectural coatings applications, it delivers consistent results across surfaces.
$34.76Compact, high-performance air regulators play a pivotal role in maintaining consistent fluid delivery in industrial spraying systems. Graco 189557 Restrictor Air Regulator transforms an ordinary air supply into a finely tuned, stable pressure source that keeps finish quality within tight tolerances. Ideal for automotive enamel, industrial coatings and specialty sealants, this unit strikes a balance between responsiveness and reliability. Technicians often pair it with replacement parts such as graco pump repair kits to streamline preventive maintenance and reduce downtime across busy production lines.
Regulator design integrates a micro-metrical adjustment screw that delivers incremental changes as small as 0.1 psi, ensuring uniform atomization regardless of compressor output fluctuations. Feedback sensor verifies setpoint stability and prevents pressure creep during extended spray cycles. In high-speed robotic operations, response time remains under 30 milliseconds, eliminating lag between trigger actuation and material deposition. Optional analog or digital gauges can be mounted to monitor downstream pressure in real time, aiding process optimization. Hand-tightened brass fittings secure effortlessly to 1/4 inch NPT manifolds commonly used in professional paint booths, lowering setup complexity.
Anodized aluminum housing resists corrosion and sheds particulate buildup to protect sensitive internals. Internally, stainless steel pistons and hardened ball bearings withstand continuous cycling for millions of operations without significant wear. Viton® seals maintain integrity across a wide temperature range, from sub-zero storage to peak 200 °F operational environments. Precision-machined O-rings deliver leak-free performance under pressures up to 150 psi. Field tests demonstrate that sustained usage in harsh shop conditions yields a service life well beyond standard regulator ratings.
Designed for seamless retrofit, this restrictor mounts inline with minimal reconfiguration, fitting standard ISO fittings found on pumps, manifolds and spray heads. Stainless steel ports accommodate a variety of hose diameters while maintaining a compact footprint. Hose clamps and mounting brackets slot into existing panels without requiring custom modifications. Operators working with high-viscosity materials or specialty coatings appreciate the consistent feed when using graco texture guns, preventing clogging and ensuring even spray patterns.
Position regulator downstream of primary air filters to shield internal components from moisture and debris. Before first use, cycle regulator through its full pressure span to seat seals and establish zero-leak operation. Periodic disassembly for visual inspection of diaphragms and spring assemblies helps identify wear before service intervals become critical. Cleaning rubber seals with manufacturer-approved solvents and lubricants extends life without compromising chemical resistance. Replacement of O-rings should follow pressure-testing protocols outlined in the maintenance manual.
Consistent pressure control reduces overspray and material waste by up to 15 percent, while delivering sharper atomization and shorter cure times. Quality control teams report fewer rejects and less need for touch-up sessions, translating into labor savings and higher throughput. Quick-change regulator swaps minimize line downtime, and predictable maintenance intervals allow for efficient stock management of spares. Investing in high-precision air regulation provides measurable returns in both performance and cost avoidance over standard regulators.
Authorized service centers supply genuine components and calibration certificates to ensure compliance with industry standards. Expert technicians can perform on-site performance validation, adjusting setpoints to match specific application profiles. For full repair and overhaul, a dedicated graco sprayer repair kit complements this regulator, delivering a comprehensive solution that covers seals, gauges and mounting hardware. Ongoing training and technical assistance guarantee that maintenance crews stay current with best practices.
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