Attachment_1_R17PS00263_Specifications.pdf

Attachment 1 Solicitation R17PS00263

SPECIFICATIONS

Supply Contract: 224 Sump Pump Replacement

Project Background and Description: This supply procurement will facilitate replacement of the current sump pumping systems within the Folsom Dam with two vertical turbine style pumps.

The water being pumped is leakage from the dam and may contain dirt and small soft debris

(ear plugs, etc.) The current system, two submersible pumps, have been experiencing several failures annually due to a tight bandwidth, material choice, repeated starts /stops on the motor, and other factors. The vertical turbines will increase the band and are robust enough to transport soft debris and dirt out of the sump, leading to reduced Operation and Maintenance

(O&M) and repair costs. This is a supply purchase request as O&M Plant Mechanics and

Electricians will install the replacement pump and motors, and perform any necessary modification to accommodate the new pumps and motors.

Taco Pump, Model 7MH6C Vertical Turbine Pump Assembly, or equal with the following salient characteristics:

Vertical Turbine Style Pumps; Multi-Stage with a minimum of 70% efficiency

Pump and motor design operating point: 250 GPM at 100 ft. of head

NPSHR not to exceed 7 ft.

Pipe/column lengths not to exceed 10 ft. sections

Discharge piping diameter not to exceed 4 in.

Open line-shaft configuration, lubricated by pumped material (raw water with some sediment)

201 Stainless steel impellers

416 Stainless Steel shafting

304 Stainless steel bolt-on basket strainer

Vertical line-shaft motor

460 Volt, 3 Phase, 60 Hz

TEFC – totally enclosed fan cooled

Class F Insulation, Class B Rise at Full Load

Documentation: The vendor will provide all documentation necessary to validate the above specification requirements, assembly, installation, and operating instructions.

Acronyms:

GPM – Gallons per minute

ft. – Feet

in. – Inches Hz – Hertz HP – Horse Power NEMA – National Electrical Manufacturers Association