Graco 223-362 Packing Stack UHMWPE and Teflon

The Graco 223-362 Packing Stack serves as a replacement fluid seal assembly compatible with Graco Senator airless sprayers configured for 15:1 and 25:1 pressure ratios. Constructed using a composite design incorporating UHMWPE and Teflon, this component manages abrasion resistance and friction levels to sustain hydraulic pressure within fluid valves under operating loads. Technicians install this OEM part to resolve issues caused by worn packing units that result in fluid leakage or diminished pump efficiency during continuous spraying applications. Correct installation ensures the machine retains specified static pressure ratings and maintains consistent service intervals on residential or commercial jobsites. This durable element supports the pumping unit's performance by preventing internal material bypass and protecting critical piston components from premature abrasive wear.