Description
The GRACO 4-411-02 is a piston assembly with an integrated O-ring, designed for use in GRACO E & ER series fluid handling guns. The part is engineered to provide reliable sealing and smooth piston movement, ensuring optimal performance and durability in high-pressure fluid transfer applications. Material specifics are not detailed in available sources, but GRACO pistons are typically constructed from robust metals with high-quality elastomeric seals.
Key Features:
- Piston Assembly with O-Ring
- Metal piston with elastomeric O-ring
- GRACO E & ER series fluid handling guns
- Reliable sealing for high-pressure applications
- Engineered for smooth piston movement
- Designed for durability and long service life
- Ease of maintenance with replaceable O-ring
Applications:
Used in GRACO E & ER series fluid handling guns for precise and reliable fluid transfer in industrial lubrication and maintenance systems.
Installation Notes:
- Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your equipment. Non-genuine parts may compromise safety and efficiency.
- Ensure the equipment is depressurized and isolated before installation.
- Inspect the O-ring for damage and replace if necessary.
- Apply appropriate lubricant to the O-ring and piston as recommended by GRACO.
- Follow torque specifications for assembly to prevent leaks and ensure proper function.
- Refer to the equipment manual for detailed installation procedures.
- Regularly inspect the piston and O-ring for wear or damage.
- Replace the O-ring as part of routine maintenance to prevent leaks.
- Keep the piston assembly clean and free from debris.
- Use only GRACO-approved lubricants and replacement parts.






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