The GRACO 563506 is a complete pneumatic Lube Sentry Valve assembly, constructed primarily from steel. It is designed for use in series-type lubrication systems to provide automatic warning and shutdown of compressors, pumps, and engines when oil is not flowing properly to primary dividers. The valve is intended to ensure reliable lubrication and protect equipment from damage due to insufficient oil flow.

Key Features:

• Pneumatic Lube Sentry Valve
• Steel
• 4–400 pints per day (1.89–189.2 liters per day)
• Up to 6,000 psi (414 bar)
• Series-type lubrication systems; compatible with oil lubricants (450–2000 SUS)
• Absence of check valves to avoid trapping contamination
• Bolted-together components for simplified maintenance
• Microswitch assembly can be removed without disturbing lines or shutting down equipment
• Reliable automatic warning and shutdown function
• Operates in temperatures from -20°F to 180°F (-29°C to 82°C)

Applications:
Used in series-type lubrication systems for compressors, pumps, and engines to monitor and control oil flow, ensuring equipment protection and reliable operation.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Install the Lube Sentry Valve downstream of the pump, filters, and controls, but ahead of the master divider valve
• Ensure proper alignment and secure bolting of components
• Regularly inspect seals and connections for leaks or wear
• Follow manufacturer’s guidelines for maintenance and replacement intervals