Introduction
The Universal APU2 Series by Waukesha Cherry-Burrell represents the latest in rotary positive displacement pumps, designed for challenging chemical and industrial applications, particularly in automotive and motorcycle manufacturing. These pumps benefit from decades of product improvement, offering enhanced performance and service life.

Features
The pumps feature a 316 stainless steel body and cover, non-galling Waukesha '88' alloy rotors, and mechanical seals. They are capable of handling pressures up to 500 psi (34.5 bar) and include heavy-duty bearing frames with double tapered roller bearings. The design ensures no bearings in the product zone, reducing vibration and extending seal life.

Installation Flexibility
The APU2 Series offers bi-directional flow and interchangeable installation dimensions with Universal 1 AP Series pumps. It supports versatile 3-way mounting and allows for upper or lower drive shaft positioning.

Applications
These pumps are suitable for water-borne and solvent-borne paints, clear coats, metallic flake paints, and base coats. Optional coatings like Armolloy® and Composite Diamond Coating (CDC) are available for abrasive applications.

Benefits
The APU2 Series protects shear-sensitive paints, prevents pigment separation, and maintains metallic flake integrity. It offers substantial energy savings, constant flow regardless of system pressure changes, and minimal heat addition to the product.

Specifications
The series includes various models with different capacities and pressure ranges, suitable for a wide range of applications. The pumps are designed for easy maintenance, with features like silicone-free grease-lubed bearings and body retaining screws.

Design and Performance
The pumps utilize an external circumferential piston (ECP) operating principle, ensuring smooth flow without destructive pulses. They are engineered for high volumetric efficiency and good flow control, even with high viscosity fluids.

Conclusion
The Universal APU2 Series pumps are engineered for high performance and long service life, making them ideal for demanding industrial applications. They offer flexibility, efficiency, and reliability, backed by Waukesha Cherry-Burrell's extensive experience in pump design and manufacturing.