The GRACO 25T571 MBL Lubricator, GBL is a modular box lubricator designed for automatic lubrication systems. It is typically constructed from robust materials suitable for industrial environments and is intended to deliver precise, reliable lubrication to machinery, helping to extend equipment life and reduce maintenance costs.

Key Features:

• Box Lubricator
• MBL Lubricator, GBL
• Modular, robust industrial construction
• Monitor block maintains pressure at 100–110 psi (7.0–7.7 kg/cm²) during operation; bleeds down to 50 psi (3.5 kg/cm²) within 45 seconds after stopping
• Designed to be easily interchangeable with other manufacturers’ pumps; compatible with various modular components (pumps, reservoir, heaters, oil level controls, drives, shaft rotation alarm, motor and mounting bases)
• Modular design for easy customization and maintenance
• Precision stroke length (~0.05") for improved flow and delivery
• Long piston and rocker life due to design that avoids bending and wear
• Alarm options available for shaft rotation monitoring
• Non-adjustable monitor block for consistent pressure management
• Dependable and backed by comprehensive distributor network

Applications:
Automatic lubrication of industrial machinery in harsh, high-wear environments such as mining, manufacturing, and agriculture. Suitable for systems requiring reliable, modular, and customizable lubrication solutions.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Assemble using standard modular components for easy customization
• When using the shaft rotation alarm (part number 24K466), mount it in the last pump station at the end of the reservoir opposite the drive end
• Reduce maximum pump quantity by 1 when installing the shaft rotation alarm
• Ensure proper electrical connections according to rated specifications (15 amps at 115/230 or 480 VAC, 0.5 amps at 125 VDC, 0.25 amps at 250 VDC)
• Regularly check oil level and system pressure for optimal operation