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420/520 UHC (EHP)

Product catalog summary

Introduction
Waukesha Cherry-Burrell has been a leader in the design and manufacturing of external circumferential, piston-type, positive displacement pumps for over 50 years. These pumps are used globally in various industries including food, dairy, beverage, pharmaceutical, chemical, and industrial applications. The Universal 420 and 520 models are designed for high-volume capacities, with the 420 model pumping over 1.6 gallons per revolution and the 520 model over 2.3 gallons.

Sanitation and Long-life Features
The pumps feature a sealed rotor/shaft connection, sideway mounting for better draining, and are made from 316 stainless steel. They include non-galling Waukesha “88” alloy rotors and mechanical seals as standard. Long-life features include large diameter shafts, heavy-duty bearing frames, and greased lubed bearings, ensuring durability and reliability.

Installation and Maintenance Flexibility
The pumps offer bi-directional flow, multiple mounting options, and field interchangeable seal options. They are designed for easy maintenance with external shimming and bearing lube fittings on both sides of the gearcase.

Performance and Engineering
The pumps are engineered for high efficiency and long service life, with features like larger shafts for greater torque capacity and high-pressure capability up to 200 psi. They are suitable for a wide range of applications, including high viscosity fluids and non-lubricating or abrasive fluids.

Specifications
The document provides detailed specifications for models 420-UHC and 520-UHC, including dimensions, displacement per revolution, nominal capacity, pressure range, maximum RPM, and temperature range.

Design Features
The pumps use arc-shaped pistons in annular-shaped cylinders to reduce slippage and ensure smooth flow. The exclusive Waukesha design allows for efficient pumping of both low and high viscosity fluids without galling or seizing.

Quality Control and Support
Waukesha Cherry-Burrell ensures quality through thorough inspection and testing at every manufacturing stage. They offer a robust sales and service network for customer support and have received ISO 9001 certification.

Additional Information
For more technical details and product information, customers are directed to the SPX Flow Technology website.