Two of the electric high service pumps (HSPs) that send finished drinking water out for distribution from the Fort Pierce Utilities District (FPUA) Henry Gahn Water Treatment Facility were aging, deteriorated, and in need of improvement. Under a continuing design-build services contract, FPUA retained Globaltech to provide design and construction/installation services for the sequential replacement of HSP No. 3 and HSP No. 4.

In both cases, Globaltech installed new pumps, frames, 400 hp electric motors, and coupling assemblies to match the flow and pressure capacity of the existing HSPs.

The existing pump bases were brought up to current Hydraulic Institute Standards.

A new variable frequency drive (VFD) and electrical service to HSP No. 4 was provided, while HSP No. 3’s existing VFD was reused.

Additional project elements included:
New suction and discharge elbows and piping
Suction and discharge flanged manual butterfly valves
Replacement of the existing pump discharge hydraulic control valve with a hydraulically dampened tilting disc swing check valve
Installation of a new HDMI panel in the pump room for local control and monitoring of all four high service pumps
Installation of related minor piping, accessories, and I&C elements

Project Achievements / Benefits

• Greatly improved reliability and parts uniformity with new equipment
• Improved operating efficiency and control with the installation of the new VFD
• Improved operational functionality with local HDMI display and control