The GRACO 221077 is a pressure dump valve designed for use in GRACO spray equipment. It is constructed for durability and long-term use, typically made from robust materials suitable for industrial environments. Its primary function is to safely relieve or dump pressure from the system, switching the sprayer between prime and spray modes as required. Key Features: Pressure Dump Valve 221077 Ultra Plus 1500, GM 3500, EM490 sprayers Durable construction for long-term use Enables safe pressure relief and mode switching Designed for reliability in demanding environments Applications:Used in GRACO spray equipment for pressure management and safe operation during maintenance or mode changes. Installation Notes: Using genuine GRACO parts ensures compatibility, reliability, and safety in high-pressure spray systems. Follow manufacturer’s instructions for installation and pressure relief procedures Ensure all connections are secure before operation Regularly inspect for wear and proper function