A. Coordinate pump requirements with drive manufacturer and be responsible for pump and drive requirements. B. Where adjustable speed drives are required, furnish a coordinated operating system complete with pump, drive, and speed controller. C. The portable by-pass pump specified will be used to pump raw sewage. D. The pump manufacturer shall supply the pump and specified accessories. E. The only acceptable manufacturers shall be: 1. Cornell 2. Pioneer 3. Godwin F. Design Requirements 1. Max Flow 1000 GPM @ 78tdh 2. Minimum Solid Handling Size 3 Inches 3. Max TDH 175ft 4. Minimum Suction Lift 20 Feet 5. Max Operating Speed 2200 RPM 6. Suction Connection 4” 150# ANSI B16.5 7. Discharge Connection 4” 150# ANSI B16.5 G. The bid item shall be delivered to the owner within 24 weeks of issuance of order and order to proceed as per bid specifications. 2.02 SUPPLEMENTS A. Some specific requirements are attached to this section as supplements. 2.03 COMPONENTS A. The pump shall be fitted with fully automatic priming system and full flow discharge check valve. The priming system shall be capable of priming the pump from a completely dry pump casing, and by design will not discharge pumpage into the atmosphere. The pump must be capable of running totally dry for periods of up to 24 hours, then re-priming and returning to normal pumping volumes. Priming systems that require manual water additions to facilitate pump priming are not acceptable. A demonstration of the pumps ability to repeatedly cycle from dry suction/pump/snore/pump shall be required. This will necessitate the draining of all residual water from the pump case to initiate dry suction starting conditions. B. The sound attenuation enclosure shall be critical grade. Noise level 69DBA at 30 feet. C. The pump shall be capable of station suction lifts to 20 vertical feet. It shall also be capable of operation using extended suction lines.
