The GRACO 558906 is a brass mating coupler designed for use with grease fill studs on Trabon™ reservoirs. It features a 1/4 inch NPT female thread and includes a check valve to prevent backflow. This part is intended to securely connect lubrication equipment, such as Lube Master, LubriSystem, and PH Manual Pumps, to Trabon reservoirs for efficient grease transfer.

Key Features:

• Mating coupler/coupling
• 1/4 in. NPT female
• Brass
• Maximum working pressure: 2.1 MPa
• For use with Lube Master, LubriSystem, PH Manual Pumps, and other Trabon grease pumps
• Check valve to prevent backflow
• Threaded connection for secure fit
• Reliable brass construction for durability

Applications:
Used in lubrication systems to connect grease pumps to Trabon reservoirs, facilitating efficient and reliable grease transfer in industrial and maintenance settings.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of lubrication systems.
• Ensure threads are clean and undamaged before installation
• Hand-tighten the coupler to avoid cross-threading
• Check for leaks after installation and during operation
• Regularly inspect the check valve for proper function