The APV W+ pump is engineered for high efficiency, low energy consumption, and exceptional hydraulic performance. Its robust stainless-steel construction, optimized impeller design, and tight internal tolerances help facilities reduce operating costs while meeting demanding hygienic and production requirements across food, dairy, beverage, and pharmaceutical applications.

APV W+ Pump
Seal Advantages
- Internal seal design optimizes cooling and lubrication of seal surfaces, while the seal chamber is built to efficiently dissipate heat. Both work to reduce the risk of "dry-running"
- Directed flow assures thorough cleaning of the seal area
- The stationary spring is located outside the product contact area to maintain cleanliness
- Two sizes cover all models
- Front-loading seal simplifies maintenance: only the pump housing and impeller have to be disassembled, then the product seal faces can be replaced quickly from the front
- Can easily be rebuilt into a double mechanical shaft seal for use with water flushing or with a barrier medium for aseptic applications
- Double mechanical is the mirror image of single: same seal faces and o-rings
Performance
The W+ range consists of several standard models with pressure and flow capacities to 360 psi (25 bar) and to 2,300 GPM (522 m3/hr), and several special versions which may be specifically adapted to customer requirements. The W+ pumps are modular, so that any pumping job can be done with a perfectly customized W+ pump.

Theory of Operation:
Centrifugal Pumps
A centrifugal pump operates by converting mechanical energy from a rotating impeller into kinetic energy within the pumped fluid. In sanitary centrifugal pumps such as those from Waukesha and APV, fluid enters the pump through the inlet eye at the center of the impeller. As the impeller rotates at high speed, centrifugal force accelerates the fluid radially outward along the impeller vanes, increasing its velocity.
This high-velocity fluid then enters the volute casing, where the expanding geometry converts velocity into pressure, producing a smooth, continuous flow at the discharge. The precision-machined volute, enlarged ports, and hygienic impeller designs used in Waukesha and APV pumps help minimize turbulence, reduce shear, and improve efficiency, making them ideal for sanitary applications requiring gentle product handling, cleanability, and consistent flow performance.
Key Applications
Food & Beverage
Dairy
Pharmaceutical & Cosmetics
Chemical & Industrial
Frequently Asked Questions
The W+ Series is designed for long service life, simplified maintenance, and energy-efficient operation. Fewer wear components, precision-engineered hydraulics, and standardized parts across the series help reduce downtime, spare-parts inventory, and overall maintenance costs, making it a cost-effective long-term solution.



