EC TITLE: Settled Water Pump Motor Size IncreasePROJECT: 3 Kings Water Treatment Plant

EC NO.: 2DATE: 3/6/2020STATUS: Acknowledged

SECTION 1: BY CONTRACTOR

QUESTION:

The duty point of the Settled Water Pumps was updated after revisions to the hydraulic model. In order to provide flexibility tooperations and not risk restricting the duration or operation of the plant during high flow periods the rated HP of the Settled WaterPump motors will need to be increased from 40 to 50 horsepower.

DRAWING NO.: 900-E-2001 ELECTRICAL - SWGR-700-01 -ONE-LINE DIAGRAM

POTENTIAL COST IMPACT:

SPECIFICATION SECTION: 44 42 56.03Vertical TurbinePumps

POTENTIAL SCHEDULE IMPACT:

PROPOSED SOLUTION:

Update the rated motor horsepower from 40 to 50 as shown in the attached revision to Vertical Turbine Pump Data Sheet, 04, inSpecification Section 44 42 56.03 and the revisions to the following drawings:

General Sheets001-G-0010

Process and Instrumentation060-N-20001060-N-20002060-N-20003

Electrical900-E-2001900-E-2003900-E-6006

COMMENTS:

INITIATOR: Zalla, Joseph/SLC

PRIORITY: NormalREQUESTED RESPONSE DATE: 3/20/2020

SECTION 2: BY REVIEWER

ENGINEERING CLARIFICATION

VPO® by Simplex Group Printed Date: 10/19/2020

RESPONSE:

COMMENTS:

REVIEWED BY: Sam Conant REVIEWED DATE: 3/13/2020

ENGINEERING CLARIFICATION

VPO® by Simplex Group Printed Date: 10/19/2020

3KINGS WTP PHASE III DESIGN

PW/DEN003/694342 VERTICAL TURBINE PUMPS FEBRUARY 10, 2020 44 42 56.03 SUPPLEMENT 4 - 1 ©COPYRIGHT 2020 JACOBS

VERTICAL TURBINE PUMP DATA SHEET, 04

Tag Numbers: PMP-200-105-01, -02, -03, -04

Pump Name: Settled Water Pump 1, 2, 3, 4

Manufacturers and Product: (1) Flowserve Worthington (2) Fairbanks Morse (3) Weir Floway (4) National Pump (5) ITT Goulds Pumps (6) Sulzer Johnston

SERVICE CONDITIONS

Liquid Pumped (Material and Percent): Clean Water (total free chlorine <=3ppm)

Pumping Temperature (Fahrenheit): Normal 68 Max 80 Min 40

Specific Gravity at 60 Degrees F: 1.0 Viscosity Range: 1.0

pH: 7.0-8.0 Abrasive (Y/N): N

Possible Scale Buildup (Y/N): N Corrosive (Y/N): N

Max. NPSH Required at Rated Capacity (Ft. Absolute): 25.4

Altitude (Feet above Mean Sea Level): 6,842

Area Classification: Unclassified Ambient Temperature (degrees F.): 55 to 104

Location: Indoor (Y/N): Y Outdoor (Y/N): N

PERFORMANCE REQUIREMENTS

Capacity (US gpm): Rated: 1,420 Secondary: 680

Total Dynamic Head (Ft): Rated: 75 Secondary: 26

BHP at Rated Point: 35.2 Secondary: 5.8

Min. Pump Hydraulic Efficiency at Rated Capacity (%): 80

Max. NPSH Required at Rated Capacity (Ft. Absolute): 23.0

3KINGS WTP PHASE III DESIGN

VERTICAL TURBINE PUMPS PW/DEN003/694342 44 42 56.03 SUPPLEMENT 4 - 2 FEBRUARY 10, 2020 ©COPYRIGHT 2020 JACOBS

Max. Pump Speed at Rated Capacity (rpm): 1,800

Constant (Y/N): N Adjustable (Y/N): Y

DESIGN AND MATERIALS

Pump Type: Open Line Shaft Bowl: Cast Iron, ASTM A48, Class 30

Bowl Wear Rings: 316 SST, ASTM 276

Bowl Lining: As specified in, 09 90 00 Painting and Coating, System No. 1

Bowl and Suction Bell Maximum Diameter (inches): Bowl and Suction Bell shall be sized for 5.5 ft/s entrance velocity at Rated Capacity

Bowl Bearings: Product lubricated fluted synthetic rubber, Viton (FKM) with Type 316 stainless steel backing, ASTM A276/A276M

Column: ASTM A36/A36M, 3/8-inch minimum wall thickness

Column Lining: As specified in, 09 90 00 Painting and Coating, System No. 1

Line Shaft Bearings: Product lubricated fluted synthetic rubber, Viton (FKM) with Type 316 stainless steel backing, ASTM A276/A276M

Discharge Head:

Type: Flanged Material: Fabricated Steel, ASTM A36/A36M

Discharge Nozzle Size (inches): 10

Flange Standard/Class: ANSI/AWWA C207 Class D

Plain End (Y/N): N Thrust Tie Lugs (Y/N): N

Impeller:

Type: Enclosed Material: 316 SST, ASTM A276/A276M

Impeller Wear Rings: 316 SST, ASTM A276/A276M

Head Shaft Material: 316 SST

Shaft Sealing: Packing (Y/N) N Mechanical (Y/N) Y Type: Cartridge

Seal Lubrication: Seal Plan 13

3KINGS WTP PHASE III DESIGN

PW/DEN003/694342 VERTICAL TURBINE PUMPS FEBRUARY 10, 2020 44 42 56.03 SUPPLEMENT 4 - 3 ©COPYRIGHT 2020 JACOBS

Coupling: Falk (Y/N) ______ Fast: (Y/N) ______ Spring-Grid (Y/N) ______

Gear Type (Y/N) ______ Spacer (Y/N) ______

Manufacturer Standard (Y/N) Y

Baseplate Material: Carbon Steel, ASTM A36/A36M

Sole Plate (Y/N) Y Material: Carbon Steel, ASTM A36/A36M

Motor Base Material:

DRIVE MOTOR (See Section 26 20 00, Low-Voltage AC Induction Motors.)

Horsepower: 40 Voltage: 460 Phase: 3

Synchronous Speed (rpm): 1,800 Service Factor: 1.0

Motor nameplate horsepower shall not be exceeded at any head-capacity point on pump curve.

Enclosure: DIP _____ EXP ______ ODP ______ TEFC _X_____ CISD-TEFC ______ TEWAC ______ WPI ______ WPII ______

Mounting Type: Vertical Hollow Shaft N Nonreverse Ratchet (Y/N) N

Vertical Solid Shaft Y

ABMA 9 and ABMA 11, B-10 Motor Bearing Life (hrs): 100,000

Adjustable Speed Drive Range: 40 Hz min to 60 Hz max. See Section 26 29 23, Low-Voltage Adjustable Frequency Drive Systems.

REMARKS

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020

DIGITALLY SIGNED:

02/10/2020