The Graco 113921 Concentrator SST is engineered for rigorous fluid control. This stainless steel concentrator optimizes high-pressure filtration, ensuring peak performance for critical applications. Integrate this part into your airless spray machine to achieve consistent flow and minimal downtime. Compatible with professional coatings and designed for seamless integration with your system, this component extends pump life and maintains purity.
Ideal for upgrade kits and maintenance schedules, the Graco 113921 ensures compatibility with a variety of airless paint sprayer accessories and delivers reliable performance under demanding conditions. With proven compatibility across popular airless sprayer setups, it provides a cost-effective solution for professionals seeking long-lasting results while maintaining system cleanliness. This versatile component enhances consistency and reduces downtime in demanding painting operations.
$629.34Constructed from marine-grade 316L stainless steel, the Graco 113921 Concentrator SST embodies precision machining and corrosion resistance tailored for demanding fluid handling in airless sprayer architectures. Its trim profile houses a high-precision flow path with laser-etched internal passages to minimize turbulence and maintain consistent volumetric throughput. CNC milling yields repeatable dimensional tolerances within ±0.02 mm, ensuring tight engagement between mating components. O-ring grooves accept FKM elastomers or optional PTFE lip seals to optimize seal longevity under cyclic pressure loading. Surface finishes are polished to Ra 0.8 μm, reducing particulate entrapment and facilitating rapid purge cycles when switching between solvent-borne and water-based materials. Analysts report that the concentrator’s geometry supports rapid response in dynamic control loops, enabling stable pressure feedback for ultra-fine atomization in professional coatings applications. It mounts directly onto compact pump heads to reduce system footprint.
Optimized for high-pressure filtration, the 113921 SST concentrator features an internal impingement chamber calibrated to generate a uniform shear layer at flow rates up to 10 L/min. Computational fluid dynamics (CFD) simulations guide port sizing to maintain a Reynolds number above 50,000 for effective particle suspension. Interchangeable screen modules accept graded mesh inserts, allowing filtration down to 20 μm without compromising throughput. The geometry minimizes dead zones and reduces pressure drop to under 3 bar at maximum rated pressure. Engineers routinely pair this concentrator with dedicated graco paint sprayer filters to ensure contaminant interception and to drive seal longevity metrics above 500,000 cycles. Its streamlined fluid path supports rapid backflush operations and integrates with ancillary sensors for real-time monitoring of differential pressure. Real-world tests under abrasive slurry conditions show minimal wear on internal surfaces during continuous operation.
Engineered to interface directly with high-displacement pump modules, the concentrator enables stable metering in variable flow scenarios without external flow control valves. A precision inlet port aligns with 0.001-inch concentricity targets to maintain laminar entry at pressures up to 3,000 psi. Finite element analysis (FEA) validates structural integrity under cyclic loading, confirming safety factors above 4:1 at maximum working pressure. Integrated thermocouple ports permit real-time temperature tracking, safeguarding fluid viscosity profiles in heat-sensitive coatings. Maintenance crews leverage quick-release clamps for rapid disassembly and cleaning, minimizing downtime. By coupling with reinforced graco paint sprayer hoses rated for over 5,000 psi, system designers achieve optimal pump efficiency while reducing pulsation-induced fatigue in downstream gear pumps or piston-driven systems. Data logging modules connect via standard analog or digital outputs to supervisory control systems for performance trending and predictive maintenance alerts.
When deployed in downstream finishing operations, the concentrator’s outlet port geometry supports direct mounting to spray manifold adapters that feed precision nozzle assemblies. The design incorporates a tapered ferrule seal to maintain concentric flow alignment and prevent radial runout at high throughput. A unique stainless steel baffle plate divides the flow into three balanced channels, reducing pulsation before metering into the spray head. This ensures consistent atomization across flat fan, round, or air-assisted tip configurations. By integrating with proprietary graco paint sprayer gun parts, technicians achieve repeatable spray patterns with minimal drift. The modular interface also accommodates quick-change couplings and multi-probe sampling ports for inline viscosity checks and solvent flush cycles without full system teardown. Throughput validation trials confirm less than 2% variance across system temperatures ranging from –10 °C to 60 °C, supporting multi-material line changeovers.
In field evaluations, integration of the 113921 concentrator within automated coating lines reduces maintenance intervals by up to 40% through improved fluid segregation and minimized cross-contamination. Operators benefit from standardized port dimensions that simplify schematic integration into supply loops with manifold valves and sensor racks. The module’s smooth internal contours enable rapid material changeover in multi-product facilities, whether handling epoxies, polyurethane lacquers, or waterborne emulsions. Periodic inspection of internal Teflon encapsulated seals using borescope cameras can preempt performance drift and extend service life. Advanced users often employ real-time pressure logging to calibrate feedback loops in robotic spray cells, maximizing transfer efficiency and ensuring uniform deposition. License-free CAD models are available for collision-checking and system simulation during equipment layout design. Technical teams report seamless compatibility with existing Graco ProMix pump stations, reducing commissioning time during scheduled plant upgrades.
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