TDA Oil Accountability Contract Drawings - Vol 2b of 4.pdf

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Attached to
THE DALLES OIL ACCOUNTABILITY MEASURES
Solicitation number
W9127N26RA004
Issued by

About this file

This document is a technical drawing (Sheet ID M-304) for The Dalles Lock and Dam Columbia River Powerhouse Oil Accountability project, prepared by the U.S. Army Corps of Engineers Portland District. The drawing details a specific installation for a lower guide bearing sump, featuring precise technical specifications for oil monitoring infrastructure, including pressure sensors, valve configurations, and connection methods. Key technical notes emphasize critical installation requirements such as using two-ferrule mechanical grip fittings, leak testing procedures, coordinating with the Contracting Officer during fish unit outages, and installing a pressure sensor with a 0-20 PSI range. The drawing is part of a larger project aimed at improving oil accountability and monitoring at the dam, with a focus on minimizing potential oil releases into the Columbia River through automated instrumentation and precise measurement techniques.

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Text version

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CLBRG & OIL LEVEL

BOTTOM OF SUMP TANK

NEW PIPE INTO EXISTING FITTING AT

REMOVE EXISTING PLUG AND THREAD

NOTE 8

INFORMATION

SEE SENSOR

PRESSURE TRANSDUCER

AND NPT ON BOTTOM

TWO-FERRULE MECHANCIAL GRIP CONNECTION ON TOP

NORMALLY CLOSED BALL VALVE WITH LOCKABLE HANDLE,

OTHER END.

MECHANICAL GRIP FITTING ON THE

SENSOR END, AND TWO-FERRULE

NPT CONNECTION ON PRESSURE

BALL VALVE WITH LOCKABLE HANDLE,

NORMALLY OPEN ISOLATION

NPT HEX PIPE PLUG TO PREVENT DRIPS

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GENERAL NOTES:

TITLEDRAWING NUMBER

FIELD-VERIFY ALL CONDITIONS PRIOR TO PURCHASE.

WITH FEMALE NPT CONNECTION.

8. PROVIDE PRESSURE SENSOR WITH RANGE 0 TO 20 PSI

FOR DATES (USUALLY DECEMBER 10TH TO JANUARY 31ST.)

IN-WATER WORK PERIOD. CONSULT CONTRACTING OFFICER

7. FISH UNIT OUTAGES MUST BE COORDINATED WITH THE

6. EXISTING PIPING IS COPPER.

5. SEE ALSO SPECIFICATION SECTIONS 22 00 00 AND 40 95 00.

RECOMMENDATIONS.

EXCEED SENSOR MANUFACTURER INSTALLATION

FERRULE MECHANICAL GRIP FITTINGS, WHICH MEET OR

4. UNLESS OTHERWISE SPECIFIED, FITTINGS MUST BE TWO-

BE LEAK-TESTED SUCCESSFULLY.

TURBINE OIL OR PIPING. AFTER REASSEMBLY, PIPING MUST

SHAVINGS OR DUST OR DEBRIS OR FILINGS MAY ENTER THE

THE OIL-FILLED EQUIPMENT. NO LIQUIDS OR POWDERS OR

BE CLEANED PRIOR TO INSTALLATION OR ASSEMBLY ONTO

AIR-TIGHT COVERING FOR OPEN PIPES. COMPONENTS MUST

THE TURBINE OIL, IN ANY WAY. PROVIDE TEMPORARY CLEAN

THAT NO WORK CONTAMINATES BEARING PIPING, OR ANY OF

SCHEDULE FOR THE GOVERNMENT TO DRAIN OIL. ENSURE

3. COORDINATE WITH THE CONTRACTING OFFICER REGARDING

WITH CONTRACTING OFFICER. FIELD-VERIFY ALL CONDITIONS.

INFORMATION ONLY. CONFIRM EXACT INSTALLATION LOCATION

2. THIS IS A CONCEPTUAL SKETCH. ALL DIMENSIONS ARE FOR

ANY PHOTOGRAPHS IN AS-BUILT SUBMITTALS.

1. BOLD/RED INDICATES EQUIPMENT TO INSTALL. DO NOT USE

DDP-20864-44 LOWER GUIDE BEARING ASSEMBLY

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FISH UNIT LOWER GUIDE BEARING

NOT TO SCALE

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