Discover the Graco 15E587 Hydraulic Suction Tube, a robust component engineered for seamless fluid transfer in demanding applications. Precision manufactured to integrate with a wide range of sprayer systems, this tube ensures consistent pressure regulation and unparalleled reliability. Ideal for both industrial and commercial projects, it enhances your equipment’s performance by optimizing fluid flow and reducing downtime. The compatibility with top-tier pumps and filters makes it an essential upgrade for any airless sprayer setup. Constructed from durable materials, the unit maintains stability under high pressure and resists wear, ensuring long service life. Users benefit from improved consistency when applying professional coatings, while the advanced design supports efficient maintenance routines. Incorporating high-pressure filtration, the Graco 15E587 Hydraulic Suction Tube delivers smooth, uninterrupted operation in a variety of environments, from construction sites to manufacturing plants. Maintenance is simplified with quick-release fittings and easy-to-clean internal passages. It withstands extreme temperatures and abrasive media.
The Graco 15E587 Hydraulic Suction Tube is engineered for seamless integration with fluid delivery systems in industrial spray applications where precision and reliability are paramount. Designed to handle high-volume throughput under rigorous duty cycles, this specialized component provides a direct fluid path from the reservoir outlet into the pump inlet, minimizing cavitation, entrained air, and flow pulsations. With over seven decades of Graco expertise in surface preparation and coating apparatus, the 15E587 is calibrated to deliver consistent material supply, maintain operational stability at fluctuating temperatures, and resist fatigue failures. Its robust construction enhances compatibility with common modular manifolds and automated stroke systems across a broad range of airless sprayer configurations.
Manufactured from precision-machined 316 stainless steel tubing and fitted with high-performance elastomer seals, the Graco 15E587 resists chemical degradation, corrosion, and abrasive wear, ensuring long service life in harsh environments. The tube’s ID is carefully balanced at 3/8” to optimize fluid velocity while minimizing shear stress on high-viscosity coatings. Critical sealing surfaces utilize custom-formulated nitrile and fluorocarbon compounds that withstand temperatures up to 200°C and resist solvent attack from aggressive polyurethane and epoxy formulations. Each unit undergoes ultrasonic cleaning, metallurgical traceability, and hydrostatic pressure testing at 10,000 psi to guarantee dimensional tolerances and seamless performance under sustained vacuum conditions. The 1/2”-14 NPSM inlet and outlet threads comply with ISO 5599-3 standards, enabling compatibility with popular pump reservoirs, quick-disconnect adapters, and manifold assemblies.
The Graco 15E587 features an internally flanged inlet designed to stabilize fluid entry and reduce turbulent eddy formation at the reservoir interface. Downstream, the tube exhibits a straight-bore alignment that precisely matches the pump’s port geometry, optimizing volumetric throughput and minimizing acoustic noise. All mating surfaces are precision-machined to a 16 Ra finish or better, preventing particulate entrapment and ensuring laminar flow. Standard O-ring grooves conform to ISO 5599-3 dimensions, facilitating interchangeability with Graco pumps, aftermarket manifolds, and quick-coupling systems. Its operational envelope spans from –14.7 psi vacuum to 5,000 psi positive pressure, supporting both priming cycles and reverse-flow purge functions. The nominal 18-inch length accommodates most standard reservoir depths while offering sufficient reach for custom tool integration.
Engineered to maximize pump efficiency, the 15E587 reduces inlet restriction, allowing the pump to maintain consistent displacement rates and minimize energy losses. Computational fluid dynamics (CFD) verified flow uniformity yields a 10% improvement in volumetric efficiency compared to legacy suction designs. Precision wall-thickness control mitigates thermal expansion and preserves dimensional stability under cyclical pressure loads. Empirical bench testing reveals less than 0.5% pressure drop at flow rates up to 1.5 gallons per minute, supporting even heavy-bodied materials. Elastomer life-cycle evaluations predict over 50,000 operating cycles before scheduled service, ensuring exceptional seal longevity and reducing unscheduled downtime in high-output production environments.
Ideal for demanding industrial projects, the Graco 15E587 is widely adopted in automotive finishing, marine hull priming, and protective linings for oil and gas infrastructure. Its design accommodates multiple formulations, including two-component epoxy emulsions, zinc-rich primers, and heavy-solids urethane blends. Integration with closed-loop control systems delivers precise fluid metering critical for uniform film build and thickness control. Field technicians value its resistance to pulsation shocks when cycling between spray and idle states, ensuring consistent atomization quality across complex geometries. From bulk pails to large-capacity tanks, this tube is the backbone of any professional coatings delivery setup.
Routine inspection of the suction tube assembly and its threaded interfaces is essential to preserve system integrity and maximize operational uptime. Installing a pre-filter or strainer with mesh ratings between 60 and 100 microns upstream can prevent particulate ingress and extend pump life, while inline filter modules with replaceable cartridges ensure effective barrier protection. The 15E587’s smooth internal surfaces and low Ra finishes simplify backflushing or clean-in-place (CIP) procedures. Coupled with differential pressure monitoring across filter housings, operators can detect media saturation early and perform maintenance without disrupting production. Consistent cleaning schedules, fluid audits, and compatibility checks with solvent-based flush agents further support long-term durability and high-pressure filtration performance.
In summary, the Graco 15E587 Hydraulic Suction Tube exemplifies precision engineering tailored for high-demand coating applications. Its corrosion-resistant materials, tight tolerances, and validated performance metrics deliver superior throughput, reduced maintenance, and reliable fluid conveyance. Compatible with a wide array of pump platforms and spray systems, it enhances overall system performance and process control. By optimizing fluid dynamics and sealing integrity, the 15E587 supports consistent finish quality while minimizing operational costs and downtime across industrial and commercial spraying environments.
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