Overhaul Archimedes Screw Pumps FC440

The system shall meet the following requirements: a- System shall be an open screw pump consisting of a spiral screw, upper and lower bearings and a drive assembly. b- Screw pumps shall be place in a steel trough at an angle of inclination ranging from 30 degrees with a hydraulic lift of 40 feet. c- Screw pumps sealed lower bearing shall be designed with a long lasting sleeve bearing and integrated grease lubricating system or a permanently greased lubricated roller bearing. d- Bearing assemblies must be design for continuous operation in both submerged and non-submerged conditions. e- System shall be non-clogging with no pre-screening required. f- System shall be designed and rated for use as an intermediate lifting pump in waste-water treatment plant operations/conditions. g- Footprint of system and connection points must match existing anchor bolt configuration of system at MCB Camp Lejeune’s wastewater treatment plant. h- System must have efficiency rating of up to 75% efficient. i- System shall be designed for lifting of return sludge from clarifier back to the aeration basing in active sludge treatment cycle, requiring a gentle lift to reduce the break-up of fragile activated sludge floc particles.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 03 -	Concrete, Cast-in-Place Concrete.
Division 22 -	Plumbing, Plumbing Piping, Plumbing Equipment.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems.
Division 33 -	Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Water Utility Pumping Stations, Wells.
Division 44 -	Pollution and Waste Control Equipment, Water Pollution Control Equipment.