CBS – University – Saudi Arabia

High Efficiency VSX® Pumps Provide Increased Comfort at High-tech Science Oasis

King Abdullah University of Science and Technology (KAUST) near Jeddah, Saudi Arabia, combines several planning and design elements that meet under the theme of sustainability. The University’s new campus was constructed from scratch on a 22-mile (36km) stretch of desert 50 miles (80km) north of Jeddah along the Red Sea. The campus is part of a larger master plan which includes a new town of 10,000 to 12,000 people that surrounds and supports the University.

KAUST was designed to propel the Kingdom into the 21st century with modern teaching facilities and equipment costing US$1.5 billion. The University’s mission is to advance science and technology to new levels by educating tomorrow’s leaders while catalyzing the diversification of the Saudi economy and addressing challenges of regional and global significance.

All campus buildings meet the strict ASHRAE 55 Standards for thermal and environmental requirements for human occupancy, guaranteeing that interior temperatures and humidity will remain at comfortable levels. Xylem’s Bell & Gossett brand VSX® pumps help meet the campus’ HVAC needs that result from the extreme climate in the region as well as from some very demanding system challenges.

After meeting and surpassing a long list of application requirements – including a minimum specification for 80% efficiency – Bell & Gossett Series VSX double-suction, split-case pumps were selected for district cooling at the University campus. The requirements also set strict guidelines for Net Positive Suction Head (NPSH), and identified limited space areas that required small pump footprints. VSX pumps were chosen because of their proven vertical split-case (VSC) platform that features vertical suction and discharge flanges that reduce equipment footprint by up to 40% compared to horizontal double-suction and large inline pumps.

A total of 27 large Series VSX VSC model and VSH model pumps were installed throughout the campus. These large pumps have motors ranging from 300 to 1000 HP:


  • Nine VSX-VSC 14x16x22A, 7,500 GPM /130 Ft. with 300Hp, 4160V/60/3, TEFC, 1200 RPM motors
  • Nine VSX-VSC 12x14x22A, 7,500 GPM /380 Ft. with 900Hp, 4160V/60/3, TEAAC, 1800 RPM motors
  • Nine VSX-VSH 16x18x19A, 15,000 GPM /196 Ft. with 1000Hp, 4160V/60/3, TEAAC, 1800 RPM motors

, Thuwal, Saudi Arabia