QL and QLQ Vertical Double Suction, Twin Volute Wet Pit
The Flowserve QL vertical, double suction pump has a single impeller and true twin volute design that produces more head and can operate at higher speeds than conventional, multistaged vertical turbine models. It can be used in all wet pit applications and virtually eliminates erosion and corrosion of the shaft, bearings and all internal components.
Applications:
Water Supply and Distribution (water), Descaling, Water and CO2 Injection, Agriculture, Flood Control, Cooling Water (metals), Sewage Collection and Treatment, Dewatering and Water Supply (mining), Fire Protection, Water Treatment, Ground Water Development and Irrigation, Leaching Acid, Cooling Water (power)
Industries:
General Industries, Mining, Water Resources, Power Generation, Primary Metals, Oil and Gas
Double Suction (First Stage) Impeller features large passageways and produces balanced hydraulic thrust for a stable performance curve with low shut-off pressure. The double-suction design on multistage pumps permits higher head and orating speed than vertical turbine models while maintaining excellent suction attributes.
Heavy Walled, Twin Volute Casing with robust transition diffuser moves liquid from casing to column through large waterways at low liquid velocity, minimizing corrosion, erosion and radial loads on bearings.
Suction Bells efficiently direct liquid into the impeller inlets with minimum resistance.
Bottom Liquid End Bearing is sealed for life with grease.
Optional Impeller Wear Rings enable restoration of original clearances for increased efficiency.
Operating Parameters
- Flows to 25 000 m3/h (110 000 gpm)
- Heads to 500 m (1640 ft)
- Pressures to 70 bar (1015 psi)
- Temperatures to 200°C (400°F)
- Column sizes to 1500 mm (48 in)
QL Vertical, Double-Suction, Twin Volute, Wet Pit Pump Chart
QL Vertical, Double-Suction, Twin Volute, Wet Pit Pump App
QLC and QLQC Series Pumps Poster
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Flowserve QLC and QLQC Series Double-Casing, Double-Suction, Twin-Volute Turbine Pumps Poster
QL Series Pumps Bulletin
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Flowserve QL Series Pumps – Vertical, Double-Suction Twin-Volute Turbine Pumps – QL – QLQ – QLC – QLQC
QL and QLC Centrifugal Pumps User Instructions
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Installation, Operation, and Maintenance for Single stage, double suction, vertical wet pit and canned centrifugal pumps
