Thrust Bearing Coolers for BONNEVILLE LOCK & DAM, Oregon

TECHNICAL SPECIFICATIONS

                                                                                Technical Specifications

                                                                                 Thrust Bearing Coolers

                                                                             Bonneville Lock & Dam, Oregon

      1  General

          Supply eight (8) complete thrust bearing cooler assemblies.  Furnish all labor, material, and equipment to fabricate complete            thrust bearing coolers.

       2  References

           Thrust Bearing Oil Cooler, Drawing No. W57780070645_R3

      3   Government Furnished Equipment (GFE)

           None

     4    Submittals

           Provide initial shop/fabrication drawings for government to verify proposed design within 30 calendar days from date of                     contract award.

     5   Specifications

           Provide eight complete Thrust bearing oil coolers assemblies based on dimensions shown in Thrust Bearing Oil Cooler,                     Drawing No. W57780070645_R3

           Provide “first article” initial set of a thrust cooler to government test fit in a unit prior to fabrication of the remaining seven (7)               units.

           Each cooler assembly shall consist of one right-hand and one left-hand section that are bolstered together at the split plate               referenced on Drawing No. W57780070645_R3 on the top left corner as “Split”.

           The headers shall be constructed of 2” minimum Schedule 40 carbon steel pipe, ASTM A106 Grade B. 

           The split plates shall be carbon steel, ASTM A516 Grade 70.

           Gaskets shall be 60 durometer neoprene.

           Hardware shall be zinc plated carbon steel, ASTM A516

           Tubes shall be 5/8” OD x 0.049 minimum wall 90/10 copper-nickel, ASTM B111. 

           Fins shall be 1.375” OD x 0.02” nominal thickness, aluminum 1100 fin, 9 fins per inch.

           Tube joints shall be rolled and brazed. 

           Brackets shall be carbon steel “L” brackets with mounting holes. (10 brackets per cooler) ASTM A516

           Connections shall be 2” Class 150 carbon steel ANSI flanges. 

           All carbon steel surfaces coated with Glyptal 1202. 

           All flange openings shall be covered for transit.

          Cooler assemblies to be shipped in wooden skids.   

     6   Testing and Inspection

           Preliminary inspection and hydrostatic test by USACE representative at place of manufacture will be required prior to                         delivery of first available complete assembly.

           Contractor shall notify Government of inspection at least 14 days prior to date of inspection. 

           All cooler assemblies shall be hydrostatically tested at place of manufacturer by the Contractor before they are delivered.                 They shall be tested to 75 psi.  The coolers shall hold this test pressure for 60 minutes without losing more than ½ psi. To be             followed up by a testing report issued to government before arrival at Bonneville Dam Warehouse. 

      7   Acceptance 

           Final inspection and acceptance will be completed at the Bonneville Dam Warehouse, Bonneville Lock and Dam, Cascade               Locks, Oregon, 97014.  The project can be accessed via south entrance gate from Interstate 84.  Monday through Thursday             0700 to 1630, excluding federal holidays.  Prior to shipment, the contractor shall notify the Bonneville Project POC a                         minimum of 2 days in advance.