Positive Displacement Pump Prevents Particle Build Up
Posted on: June 13, 2023The SPX Waukesha series of positive displacement pumps include advanced sanitation technologies, long-life features, and installation flexibility. They are also Clean-in-Place (CIP) capable that are engineered to perform in food & beverage, dairy, pharmaceutical, and personal care industries.
U3 Series – Pump for Life Program
- Pumps for Life Lifecycle Program
- Buy a new U3 Pump
- Maintain with Genuine SPX FLOW Parts
- Trade in old pump for new pump at a remanufactured price
Key Features & Benefits
- CIP capability available. Pump body has optional internal flat body profile and will free drain with vertical ports. Optional rotor and body hub drilling provided for difficult CIP cleaning applications.
- Cover is free draining in horizontal or vertical port positions.
- Rotor/shaft connection sealed from product zone.
- Single mechanical seals standard. Optional double mechanical seals also available.
- Seal flush optional: seal areas interconnected to improve circulation and draining of seal flush fluid. Steam-In-Place also is optional.
- Optional Aseptic design
- Heavy-duty stainless-steel bearing frame standard
- Double tapered roller bearings
- Greased lubed bearings for positive lubrication to all bearings over entire speed, temperature, and pressure range
- 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
Universal 3 Series Positive Displacement PumpIndustry/Application:
A major processor of sauces, dressings, and dips uses positive displacement (PD) pumps to transfer its products that contain suspended particulates such as tomato, onion, pepper pieces, garlic, basil, and salt.Problem: The customer* had been using PD pumps in their process lines for many years. However, after a period of time, they discovered small ingredient particulates beginning to accumulate around the cover O-ring even after completing the clean in place (CIP) cycles giving rise to a risk of contamination. Sanitation personnel were then forced to open and further clean the pumps manually (on designs meant to be fully CIP-able) – delaying production times significantly.
Solution: The customer tested a Waukesha Universal 3 PD Pump that utilizes a L-shaped gasket in the front of the body which mates up with the flat pump cover, preventing particles from accumulating. The customer ran multiple test products and CIP solution through a model U3 size 045. After each run, the pump was disassembled for inspection and no accumulation around the L-gasket was found.
Result: The customer was delighted with the results and has informed SPX FLOW that they are making plans to replace other pumps with the Waukesha Universal 3 series. As an additional benefit, U3 pumps use the same shaft seals for model sizes 30-130, helping to further reduce spare parts inventories.
* Company name not disclosed for confidentiality reasons