The GRACO 17N357 is a repair kit containing check valve cartridges with carbide seats and o-rings, designed for use in Endura-Flo 3D350 and 4D350 air-operated diaphragm pumps. The carbide seats provide enhanced durability and resistance to wear, making this kit ideal for maintaining reliable fluid transfer and supply in demanding industrial environments.

Key Features:

• Check valve repair kit
• Endura-Flo 3D350, 4D350 (350cc)
• Carbide seat check valve cartridges with o-rings
• Endura-Flo 3D350, 4D350 pumps
• Enhanced durability due to carbide seats
• Includes 4 check valve cartridges and 4 o-rings
• Designed for easy maintenance and replacement
• Reliable performance in demanding fluid transfer applications

Applications:
Maintenance and repair of Endura-Flo 3D350 and 4D350 air-operated diaphragm pumps used in fluid transfer, paint circulation, and piggable paint systems requiring lower pressure ranges and extended diaphragm life.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, compatibility, and longevity of your equipment.
• Always follow the manufacturer’s instructions for installation and maintenance.
• Ensure the pump is depressurized and isolated from the system before starting work.
• Replace all o-rings and check valve cartridges as a set for best results.
• Inspect all components for wear or damage before installation.
• Regularly inspect check valves and o-rings for signs of wear or leakage.
• Use only GRACO-approved replacement parts to maintain warranty and performance.
• Keep a maintenance log for all repairs and replacements.