The GRACO 25R439 KIT is a low level sensor designed for heavy-duty performance, engineered to monitor and signal when lubrication fluid tank levels are critically low. It is intended for use with GRACO lubrication equipment to prevent pump cavitation and equipment damage by alerting operators or shutting off air flow to pumps when the tank is empty. The sensor is constructed for reliability and long service life in industrial environments.

Key Features:

• Low Level Sensor
• 25R439 KIT
• Heavy-duty, engineered for industrial use
• Designed for use with GRACO lubrication systems (specific compatibility with Fluid Defender or similar systems implied, but not explicitly stated for 25R439)
• Engineered for lasting, heavy-duty performance
• Prevents pump cavitation and equipment damage
• Reliable operation in industrial environments
• Quick shipping and expert support available

Applications:
Monitoring lubrication fluid tank levels in above ground, stationary tanks for industrial lubrication systems. Used to prevent pump cavitation and equipment damage by signaling low fluid levels.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
• Set the level sensor height at least 2–3 inches above the pump inlet to prevent pump runaway conditions
• Tighten the cord grip on the cable to finger tight, plus one-half turn to secure the sensor in place
• Connect level sensor wires according to the equipment manual and local codes
• All accessory circuits are low voltage (less than 48 VDC)
• Regularly inspect the sensor and wiring for wear or damage
• Ensure proper tightening of all connections to prevent sensor movement
• Follow preventative maintenance schedules for peak performance and longevity