U3 Universal 3 Series Pump

The U3 Universal 3 rotary positive displacement pumps from Waukesha Cherry-Burrell take sanitary performance to a new level while maintaining superior reliability with long-life engineering enhancements.

The U3 pump series offers the same Waukesha Cherry-Burrell legendary reliability and great new features that will make it the gold standard in sanitary applications. The front-loading seal design makes maintenance easier and dramatically reduces downtime. The new sanitary features and the long-life engineering design will make this pump a must-have in your new systems.

This pump offers a front-loading seal design with no bearings in the product zone. Operating pressure capacities up to 500 psi (34.5 bar) and a standard 316L stainless steel body and cover make this an attractive hygienic pump option for your most challenging food and beverage industry applications. Assembled and tested in Delavan, WI, with Waukesha 88 non-galling rotors and a standard 304 stainless steel gear case, it provides an ideal fluid transfer solution that can withstand the rigors of daily processing environments.

Key Benefits

The U3 delivers high performance and longevity through its excellent design and quality construction. These pumps provide years of service with very high reliability. When needed, Anderson Dahlen can repair your U3 pump with a rapid turnaround. The Waukesha Cherry-Burrell Universal 3 Series has these key benefits:

High-pressure capability, up to 500 psi/34.5 bar, for more demanding jobs
Longer service life, resulting from a fresh engineering approach and durable, high-quality components
The right seal for countless applications, plus interchangeability when needed
Metal rotor: Waukesha 88 non-galling alloy for close-running clearance
Design conformity to 3A sanitary and ISO 9001:2015

Key Sanitary Features Include:

Front loading seal design
CIP capability is standard
Cover is free draining in horizontal or vertical port positions
Cover seal is a profile design to improve cleanability
Rotor/shaft connection is completely sealed from the product zone, which reduces the risk of corrosion

Single mechanical seals are standard. Optional double mechanical seals, o-ring, and lip seals also available. Seal types can be changed without additional machining
Stainless steel gear case and bearing frame are standard
Aseptic fittings available
Seal flush and steam-in-place optional

Key New Long-Life Features Include:

Up to 500 psi (34.5 bar) pressure capability
Pumps rated to 300F (149C) as standard
Special rotor nut designed for extended service without loosening
No bearings in the product zone
New shafts are shorter and have larger diameter 17-4 PH shafts
Double tapered roller bearings
Greased lubed bearings for positive lubrication to all bearings over entire speed
Body retaining screws for maintaining mechanical seal contact during inspection
Extended outer seal life. A wave spring, instead of an O-ring, mechanically loads the seal
Unique mechanical seal design utilizes 2 pin stationary seal and special design shaft for rotary seal

Common in These Industries:

Download the U3 Series Pump Manual
Your resource for maintenance, parts lists, and general operation for the Waukesha Cherry-Burrell Universal 3 Series Rotary Positive Displacement Pump.

Download the Preventative Maintenance Checklist for Positive Displacement Pumps
Implementation of a preventative maintenance plan keeps products running at optimal levels and protects your product investment. Use this checklist to be sure your pumps run at peak operation.