AURORA 3804 Pump and Motor Skid for SEWPP

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2.1        AURORA 3804 Pump and Motor Skid 2.1.1        Type: Horizontal, end-suction, single-stage centrifugal pump 2.1.2        Model: Aurora 3804 (flexible-coupled, base-mounted) 2.1.3        Mounting: Fabricated steel base plate supporting pump and motor 2.1.4        Suction flange (Y): 8.00″ (203 mm) 2.1.5        Discharge flange (X): 7.50″ (191 mm) 2.1.6        Dimension D: 4.75″ (121 mm) 2.1.7        Dimension Z: 6.13″ (156 mm) 2.1.8        Dimension C (face-to-face): 1.81″ (46 mm) 2.1.9        Dimension CP (center-to-pump plate): 2.56″ (65 mm) 2.1.10        Casing: ASTM A536 ductile iron 2.1.11        Impeller: 316 SS, dynamically balanced, key-locked to shaft 2.1.12        Shaft sleeve: 316 SS 2.1.13        Shaft: AISI C1045 steel 2.1.14        Wear ring: 416 SS 2.1.15        Mechanical seal: Carbon with 303 SS parts and Buna-N elastomers 2.1.16        Power frame & bracket: Cast iron 2.1.17        Bearing life: Heavy-duty power frame rated for 100,000 hours 2.1.18        Mechanical seal: Internal self-flushing, lubricated seal 2.1.19        Back-pullout design: Allows service without disturbing piping 2.1.20        Volute: Single volute for this size (double volute on larger models) 2.1.21        Gauge taps: Provided on suction and discharge flanges 2.1.22        Typical operating speed: 1,770 RPM (60 Hz) 2.1.23        Working pressure range: Up to ~175 PSI 2.1.24        VFD-compatible: Flexible coupling allows for variable speed operation 2.1.25        Motor coupling: Flexible-coupled, mounted on base 2.1.26        Motor frame: Sized per power requirements 2.1.27        Base skid: Steel fabricated plate with pump and motor mounts 2.1.28        VFD-compatible configuration supports energy-efficient operation 2.1.29        Back-pullout cartridge simplifies maintenance 2.1.30        Corrosion-resistant wetted components (316 SS impeller & sleeve) 2.1.31        Re-greaseable bearings extend service intervals 2.1.32        Suitable for applications up to approximately 175 PSI

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LABOR - The Contractor shall supply the pump and motor skid, disconnect and remove the existing pump, and install the new pump and motor skid in place. The Houston Water, Drinking Water Operations Branch maintenance staff will support the contractor as needed.

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