A.02 SOW The Dalles Tainter Valve Unwatering Pump Rehab.pdf

PRODUCT DESCRIPTION

The Dalles Navigation Lock Tainter Valve Pump (and auxiliary components)

1. GENERAL REQUIREMENT DESCRIPTION

The Government requires replacement materials for an unwatering pump at The Dalles Navigation Lock. Government personnel will perform the final installation on-site.

Procure, assemble, and deliver the following:

1) Pump bowl assembly

2) Threaded pump column

3) Line shaft

4) Line shaft bearings

5) Line shaft couplings

2. REFERENCES 12

a. AWWA E103 (2015) Horizontal and Vertical Line-Shaft Pumps

b. AWWA C200 (2012) Steel Water Pipe - 6 In. (150 mm) and Larger

c. AWWA C208 (2017) Dimensions for Fabricated Steel Water Pipe Fittings

d. ASTM A27/A27M (2020) Standard Specification for Steel Castings, Carbon, for General Application

e. ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

f. ASTM A48/A48M (2003; R 2016) Standard Specification for Gray Iron

Castings

g. ASTM A108 (2013) Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished

h. ASTM A276/A276M (2017) Standard Specification for Stainless Steel Bars and Shapes

i. ASTM A576 (2017) Standard Specification for Steel Bars, Carbon, Hot-

Wrought, Special Quality

j. ASTM A668/A668M (2020a) Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use

k. ASTM A743/A743M (2019) Standard Specification for Castings, Iron-

Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application

l. ASTM B148 (2014) Standard Specification for Aluminum-Bronze Sand Castings

Reference drawing:

3. GOVERNMENT FURNISHED MATERIAL

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4. SAFETY PRECAUTIONS

5. SPECIFICATION

Designated materials must conform to the following specifications, grades, and classifications.

MATERIALS SPECIFICATION GRADE, CLASS

Aluminum-Bronze ASTM B148 Alloy No. C95500

Castings Cast Iron ASTM A48/A48M Class Nos. 150A 150B, and 150C; 30A, 30B, and 30C

Cast Steel ASTM A27/A27M Grade 65-35, annealed Cold-Rolled Steel Bars ASTM A108 min, Wt. Strm 65,000 psi Hot-Rolled Stainless ASTM A576 Graded G10200 and

G11410

Stainless Bars and Shapes

ASTM A276/A276M Grades S41600, S31600

Steel Pipe 6 inch and Larger

AWWA C200

Structural Steel ASTM A36/A36M

Epoxy coating is to meet the requirements specified in ANSI/AWWA E103-15.

Contractor is to procure/manufacture/assemble and deliver to The Dalles Dam, the following materials:

a. Pump Bowl Assembly – Qty: 1 each

i. Vertical Turbine Pump, rated at 1500 GPM at 118 feet of head with bell suction.

ii. Strainer Basket is to be stainless steel or epoxy coated steel.

iii. Ferrous surfaces (except stainless steel) shall be epoxy coated.

iv. NOTE: Pump will be driven by the existing 60HP, 1765 RPM electric motor and must be compatible with this motor.

v. Pump Bowl Assembly material is to be cast iron or cast steel.

vi. Pump Bowl Assembly to meet the specification requirements of

AWWA E103 (2015).

b. Columns:

Product Details:

Minimum wall thickness before epoxy coating shall be 0.322” 9’-11” column – Qty: 12 each 4’-11 ½” column – Qty: 2 each 3’-2” motor base column – Qty: 1 each Columns shall have a minimum wall thickness of 0.322” before epoxy coating

i. Columns are to be standard 8” Nominal pipe with a threaded coupling.

AWWA E103 (2015). Columns are to be straight butt thread at each end. Existing column threads are 8TPI RH with threaded female couplings for connecting columns together and holding bearing retainers in place. There is to be 2” of thread on ends of column.

ii. The column material is to be steel and meet material requirements for

AWWA C200 (2012)

iii. All columns and column couplings shall be epoxy coated inside and out minus the thread fitment areas. Epoxy coat all columns, and pump discharge pipe, exterior and interior, in accordance with AWWA E103 (2015).

c. Column Couplings:

4-1/2” long 8” standard column couplings threaded at Female 8TPI RH to match male threaded columns. Qty: 16 each.

i. Epoxy coat on all internal and external non-threaded surfaces in accordance with AWWA E103 (2015).

ii. The column coupling material is to be steel and meet material requirements for AWWA C208 (2017).

d. Line Shafts:

Product Details:

9’-11-1/2” – Qty: 12 each 5’ – Qty: 2 each 7’ Motor Shaft (threaded one side only, adjustment nut threads and keyway to be cut by The Dalles Dam machine shop). Qty: 1 each

i. 416 stainless steel 1-7/16” Pump shaft

ii. Must meet pump industry standards for straightness.

iii. All shafts threaded male both ends to fit with line shaft couplings except motor shaft.

e. Line Shaft Couplings:

416 stainless steel 1-7/16” 12 TPI LH Female threaded to accommodate line shaft threading. Pump shaft quality. Qty: 16 each.

f. Line Shaft Sleaves:

1-5/8” OD to match pump standard bearing inserts. 316 stainless steel Sleaves are 7” long and are to be centered 12” from one end of shaft to accommodate bearing surface. These may be made to shrink fit over the 1- 7/16” line shaft and will be installed by The Dalles Dam machine shop. Qty:

16 each.

g. Bearing Retainers:

8” bronze bearing retainer made for threaded column line shaft retention complete with pump standard rubber bearing inserts to accommodate 1-5/8” line shaft sleeve. Bearing retainer outer ring is to be ½” thick. Qty: 16 each.

h. Shaft Adjustment Nut:

Steel shaft adjustment nut cut for 1-7/16” 12TPI LH with set screw for locking to shaft after adjustment above motor. Qty: 1 each.

No coating required.

6. TESTING

7. INSPECTION/DOCUMENTATION

a. The contractor shall notify the Government technical representative when all parts are available for inspection at the contractor’s facility, prior to shipping.

The Government may inspect products for quality and to verify measurements on site, or require evidence of the same through other means (i.e. video or photos).

8. TECHNICAL REPRESENTATIVE

For field inspection contact: Jesse Alsup – (541) 506-8261

9. PACKAGING AND DELIVERY

a. All line shafts shall be packaged in a crate for protection, all threaded ends of both line shafts and columns shall be protected from damage in shipping and handling. Pump shall be crated for protection.

b. Delivery will be Monday thru Thursday 8:00-4:00pm at the Dalles Dam warehouse, I 84 Exit 88.

c. Contact the technical representative three business days prior to delivery (Business days/hours are Mon through Thursday 8AM-4PM) to coordinate access and delivery details.