The GRACO 556934 is a stainless steel check valve spring designed for use within GRACO equipment. Its primary function is to ensure proper operation of the check valve, maintaining flow direction and preventing backflow in fluid handling systems. Key Features: Check Valve Spring Stainless Steel Designed for GRACO equipment; consult manual for specific models Made from durable stainless steel for corrosion resistance Engineered for reliability and long service life Ease of maintenance due to robust construction Applications:Used in fluid handling and lubrication systems where check valve operation is critical, such as in industrial, mining, and agricultural equipment. Installation Notes: Using genuine GRACO parts ensures optimal performance, safety, and compatibility with GRACO equipment. Always refer to the equipment manual for specific installation instructions Ensure the spring is installed in the correct orientation within the check valve assembly Inspect for wear or damage before installation and replace if necessary