Pentair Flow & Filtration Solutions has introduced a new line of vertical lineshaft turbine (VLST) pumps — the BERKELEY 12VT series. The new pumps focus on the 12-inch (nominal bowl diameter) product range and feature increased performance in flow, efficiency and head-per-stage, delivering an average 29-percent improvement in head-per-stage versus the company’s current models.

“Berkeley has a strong tradition of driving innovation in its irrigation products,” says Chris Charland, senior product manager at Pentair Flow & Filtration Solutions — Water Technologies. “The 12VT joins Berkeley’s TMH Submersible Turbine Pumps, Pentek XE-6 6-inch Submersible Motors and Berkeley BVM Vertical Multi-Stage Pumps as recent examples of our commitment to providing one source for reliable, innovative and performance-driven products.”

Along with improved performance, the new pumps’ standardized component design gives customers more performance and options with less effort, simplifies business processes, and improves assembly and delivery times.

The design of the new Berkeley 12VT VLST pumps delivers a lineup that allows for shared designs, processes and tools across the entire performance range. The new pumps reduce the number of flow series in the 12-inch product line from 20 to eight, while improving performance coverage. The number of major components is also lowered from 88 to 23, which supports faster turnaround time, dealer quote preparation, pump building and delivery. Fewer components can make dealer inventory easier to forecast and stock, promoting quicker inventory turnover and taking less warehouse space.

The design of the Berkeley 12VT VLST pumps features flexible configuration options, including open impeller options for each of the eight new flow series, multiple bearing material choices for intermediate bowls to address most operating conditions, and a suction case/suction bell design that essentially requires two castings to support all eight flow series.

The 12VT also provides several durability improvements: ductile iron discharge case for higher strength and better corrosion resistance, an O-ring seal on the bowls to create a better sealing surface and a better load spread across the flange of the bowls, 416 stainless steel collets, and 300 series stainless steel hardware for better corrosion resistance.

Pentair delivers products, services and solutions for its customers’ diverse needs in water and other fluids, thermal management and equipment protection. With 2015 revenues of $6.4 billion, Pentair employs approximately 30,000 people worldwide. To learn more, visit