FIELD SERVICE

Block & Terrace Fountains, Colorado

The City of Denver tasked Quadna with the evaluation of the block and terrace fountains, designed by Lawrence Halprin and located in lower downtown Denver. Dedicated more than 25 years ago, the fountains at Skyline Park were shut down due to drought and other factors in early 2000.  Quadna was asked to remove dated equipment and complete the fountains’ restorations. The rework included upgrading the system controls, the installation of ITT/Goulds PumpSmart 200s and rehabilitation of the circulation and filtration systems.

VIT Line Shaft Upgrade/Retrofit, Colorado

A mining operation in Southwestern Colorado began an expansion process that required the increase in discharge pressure of their existing VIT Line Shaft pumps.  Each individual pump, originally supplied by Quadna, is 150 ft long and weighs 12,000 lbs.  Quadna extracted each of the three pumps one at a time, retrofitted them with new bearings in the bearing retainers and new bowl assemblies.  Their discharge heads were then cleaned and repainted before being set back into their prior positions.  Start-up and inspection was performed one pump at a time to maintain gold production levels and prevent downtime.

 

40,000-Pound, 29-Foot Long Vertical Pump Solution, Arizona

One of the nation's largest generators of electricity contacted Quadna to investigate a problem it was experiencing with a 78X54 WMCC vertical column 2B circ water pump. The 40,000-pound pump, driven by a 1750 horsepower, 505 revolutions parts per minute, 400-volt motor, was removed using a 70-ton crane. During the removal process, a faulty valve caused more than a foot of water to flow from the cooling tower. Quadna’s field team leader had the pump reinstalled, constructed a steel wall to divert the water into the sump and continued the removal. The 29-foot-long vertical pump was repaired and reinstalled without issue.

Floating Barge Mining Solution, Colorado

In order to provide adequate fire suppression for its operations, a coal mining company located in Rangley, Colo., needed a pond-based pumping solution. The result was to build a floating barge that would house pumping equipment and force water from a pond to a water tank three miles up the side of a mountain. The barge approach also would alleviate the problem of changing pond levels, which can cause damage to pump stations.

Rob Giese, Quadna Grand Junction branch manager, says the Colorado office, in conjunction with the fabrication team in Phoenix, fabricated the barge incorporating two Goulds vertical turbine pumps, discharge piping and valves, a walkway, a discharge header, 360 degree guardrail and the motor control panel.

“The barge was fabricated in Phoenix per our design/drawings then fully assembled here to ensure everything fit properly,” says Giese. “The barge was approximately 17 foot x 17 foot square with 4.5 foot legs to prevent the pumps from bottoming out. The walkway was 12 feet and included a 20-foot stairway with a 3.5-foot landing to the shore. The walkway, which was pinned to the stairway and the floating barge, will allow for varying pond levels. Quadna installed Strongwell fiberglass grating panels for the service area around the pumps, the walkway and the stair treads. Once assembled, everything was match-marked, then disassembled into modular sections for shipment to the customer on a single flatbed truck. The control panel was shipped separately by the customer for installation.”