SECTION 11314A DETAIL PUMP SPECIFICATON FERMENTED SLUDGE PUMPS

This spec was part of the Des Plaines, IL River WRF project tat bid Feb 26, 2015.


SECTION 11314A

DETAIL PUMP SPECIFICATON FERMENTED SLUDGE PUMPS


PART 1 GENERAL

1.1 SECTION INCLUDES

A. Fermented Sludge Pumps:
1. Fermented Sludge Pump No. 1: P-7-17-1.
2. Fermented Sludge Pump No. 2: P-7-17-2.

1.2 SYSTEM DESCRIPTION

A. The Fermented Sludge Pumps shall be capable of pumping fermented return activated sludge from the Fermentation Basins to the influent splitter box of the Aeration Tanks.

1.3 REFERENCES

A. See General Pump Specification, Section 11314, SCREW IMPELLER DRY PIT CENTRIFUGAL PUMPS - GENERAL.

1.4 DESIGN REQUIREMENTS

A. General Requirements:
1. Liquid Pumped: Return activated sludge.
2. Specific Gravity: 1.0.
3. Maximum liquid temperature: 68° F.
4. Percent Solids, %: 0.75 – 1.25.
5. Suction flange size, inch: 6.
6. Discharge flange size, inch: 5.
7. Pump Orientation: Horizontal.
8. Motor nameplate horsepower: 15 HP.

B. Hydraulic Requirements:
1. Primary Design Flow:
a. Design flow, gpm: 620.
b. Design TDH, feet: 38.6.
c. Minimum percent efficiency: 75%.
2. Secondary Design Flow:
a. Design flow, gpm: 280.
b. Design TDH, feet: 25.4.
c. Minimum percent efficiency: 50%.
3. Minimum spherical passing, inch: 3.

1.5 SUBMITTALS

A. See General Pump Specifications, Section 11314, SCREW IMPELLER DRY PIT CENTRIFUGAL PUMPS - GENERAL.

1.6 DELIVERY, STORAGE AND HANDLING

A. See General Pump Specification, Section 11314, SCREW IMPELLER DRY PIT CENTRIFUGAL PUMPS - GENERAL.


PART 2 PRODUCTS

2.1 See General Pump Specifications, Section 11314, SCREW IMPELLER DRY PIT CENTRIFUGAL PUMPS - GENERAL.


PART 3 EXECUTION

3.1 See General Pump Specification Section 11314, SCREW IMPELLER DRY PIT CENTRIFUGAL PUMPS - GENERAL.


END OF SECTION