Lincoln Lube 85627 1:1 Pneumatic Diaphragm Pump for Oil and Antifreeze

The Lincoln Lube 85627 is a 1:1 air-operated double diaphragm pump designed for efficient handling of new and used oil, antifreeze, and other viscous or solid-laden fluids in industrial and automotive shop environments. Built with a durable aluminum body and Buna-N wetted parts, this self-priming pump delivers reliable performance in demanding lubrication applications.

Technical Specifications:

• Flow Rate: Up to 45 GPM (170.3 liters per minute)
• Maximum Pressure: 125 PSI (8.6 bar)
• Inlet/Outlet Size: 1 inch NPT
• Air Inlet: 1/2 inch NPT female
• Maximum Suspended Solids: 1/4 inch particles
• Pump Body: Lightweight, corrosion-resistant aluminum
• Wetted Parts: Buna-N (nitrile) for oil resistance

Key Features and Benefits:

• Compressed Air Operation: Air-driven design with directional air distribution valve and pilot valve in the center section
• Self-Priming Design: Capable of dry priming under most suction lift or flooded suction conditions
• Low Interval Velocities: Reduces internal wear and extends pump life while moving abrasive materials without damage
• Gentle Pumping Action: Does not shear fragile or sensitive materials
• Variable Flow Control: Regulate air supply to adjust flow rate as needed
• Environmentally Friendly: No motors, seals, or packing to leak
• Deadhead Protection: Automatically stops when discharge is closed, eliminating need for bypass systems or relief valves
• Runs Dry Safely: Can operate without liquid without damage

The pump operates through two outer chambers connected by suction and discharge manifolds, with check valves controlling fluid direction. Liquid moves through the "wet end" while the air valve system in the center controls the pumping action, making it ideal for transferring oils, antifreeze, and other shop fluids efficiently and safely.