Description
The GRACO 557344 is a valve designed as an air cock with a 1/4 NPT connection. It is used in medium-duty pumps and metering lubrication equipment to regulate and control airflow. The material is not specified, but it is engineered for reliable performance in industrial applications.
Key Features:
- Valve, Air Cock
- 1/4″ NPT
- Medium-duty pumps and metering lubrication equipment
- Precise airflow regulation
- Reliable operation in industrial environments
- Compact design (1.05″ length x 1.5″ width x 0.7″ height)
- Made in the USA
Applications:
Used in GRACO medium-duty pumps and metering lubrication equipment for controlling and regulating airflow in industrial lubrication systems.
Installation Notes:
- Using genuine GRACO parts ensures optimal performance, compatibility, and longevity of equipment.
- Ensure proper alignment and secure connection using 1/4″ NPT threads.
- Check for leaks after installation.
- Follow manufacturer guidelines for torque and sealing.
- Regularly inspect for wear or damage.
- Replace if signs of leakage or malfunction are present.
- Use only compatible replacement parts.






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