NRMAH0002300361KAW Attachment A.pdf

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FABRICATION OF WELDED POP-UP FLOAT ASSEMBLIES – QUANTITY 22 – NOAA SEATTLE, WA
Solicitation number
NRMAH0002300361KAW
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Text version

90°

D

D

SEE DETAIL F

4 PLCS

H

SECTION D-D

SCALE 1 : 4

92X

2-4

2-4

3 PLCS

DETAIL F

SCALE 1 : 2

1.

Additional Notes:

3. PRIOR TO PAINTING, ENSURE ALL WELDS ARE

AIRTIGHT BY PERFORMING A VACUUM TEST.

SEE SHEET 2 FOR DETAILS.

REVISIONS

ZONE REV. DESCRIPTION DATE APPROVED

A UPDATED PORTS TO UPPER AND LOWER WELD-IN TEMPERATURE

PROBES, 1 UPPER 1/8" NPT, AND 1 PRESSURE SENSOR PORT 6/9/2020 SJA

ITEM NO. PART NUMBER DESCRIPTION QTY.

1 000468 Pop-Up Float Body 1

2 000467 Top Flange 1

3 000458 Release Drop Weight Body 1

4 001130 SAE -2 Port 1 5 000581 Temperature Probe Housing 2

6 000475 Drop Weight Anti-rotation Guide 1

7 000470 Bottom Tube 1 8 000476 Lower Ring 1

9 000477 Handle 2 10 000567 Pressure Sensor Mount 1

D

B

A

B

C

D

8 7 6 5 4 3 2 1

5 4 3 2 1

A

NOAA-PMEL

OF

CHECKED

UNLESS OTHERWISE SPECIFIED

.X 0.05

.XX 0.02

.XXX 0.005

Engineering Division

DESCRIPTION

DRAWING NUMBER

Welded Float Assembly

11/4/2022

DRAWN

SJA

TOLERANCES ARE:

DATE

THIRD ANGLE PROJECTION

NO MODIFICATION OF SPECIFIED

DIMENSIONS OR MATERIALS IS

ALLOWED UNLESS APPROVED

BY NOAA ENGINEERS.

BREAK SHARP EDGES 0.005 MIN

MACHINED FILLETS 0.015 MAX

SURFACE FINISH 125

DO NOT SCALE DRAWING

ANGLES 1

FRACTIONS 1/16

DECIMALS PLOT DATE

7600 Sand Point Wy NE Seattle, WA 98115 206-526-6800

DATE

3/25/2020

SHEET

PRODUCT

Pop-Up

DIMENSIONS ARE

IN INCHES

Notes:

ANTI-ROTATION GUIDE PARALLEL TO 1.

BOTTOM TUBE ORIENTATION TO OTHER

FEATURES NOT CRITICAL.

PAINT: CLEAN ALL SURFACES AND PREP FOR 2.

PAINT. MASK OFF THE BOTTOM MOTOR

SHAFT HOLE, THE NPT HOLE, THE SAE PORT,

AND THE UPPER FLANGE HOLE TO THE

OUTTER EDGE OF THE O-RING GROOVE.

APPLY 93% ZINC CONTENT SPRAY COLD

GALAVANIZE PAINT MCMASTER 7725T313 OR

SIMILAR.

ASSEMBLY NUMBER

500131 500131

CONFIGURATION REV.

Default A

C

Welded Float Assembly Vacuum Test, Galvanic Coating and Delivery Instrucions Specifications Sheet

1. Install the 1/8 NPT plug (part and location #2) into the tank.

2. Install the plastic plug in the bottom (part and location #4).

3. Install the vacuum gauge valve assembly into the SAE port (part and location #3).

4. Thoroughly clean all dirt and debris from the o-ring groove and surrounding surfaces with isopropyl alcohol.

5. Thoroughly clean the o-ring (size 256 70 shore A durometer Buna-N o-ring) with isopropyl alcohol and apply o-ring grease Dow Corning 4 or similar.

6. Thoroughly clean the surface of the aluminum plate with isopropyl alcohol and remove all debris.

7. Install the o-ring and aluminum lid (parts and location #1).

8. Connect Firm Polyurethane Tubing (1/8" ID, 1/4" OD) to vacuum pump (supplied by vendor).

9. Ensure the quarter turn valve is open and begin pulling vacuum. The aluminum lid may need to be pressed down to establish a seal.

10. Allow the pump to pull a vacuum somewhere between 12 and 15 in-hg. Close the quarter turn valve and record the final gauge reading.

11. Allow the vessel to sit for 24 hours. If the vacuum gauge reading has fallen by more than 2 in-hg over the duration, it could indicate a leak somewhere or a problem with the weld. You may try tightening the npt plug more and trying again, or there may be a pinhole in a weld somewhere.

12. Once the vessel passes the vacuum test it can move on to spray galvanize paint.

13. Ensure that all holes the o--ring surfaces are properly masked before applying paint.

14. Use Crown Cold Galvanize Coating, 93% zinc rich, premium 7007 spray paint to fully coat the welded assembly.

15. Protect the upper flange o-ring surfaces with cardboard or foam for delivery.

D

B

A

B

C

D

8 7 6 5 4 3 2 1

5 4 3 2 1

A

NOAA-PMEL

OF

CHECKED

UNLESS OTHERWISE SPECIFIED

.X 0.05

.XX 0.02

.XXX 0.005

Engineering Division

DESCRIPTION

DRAWING NUMBER

Welded Float Assembly

11/4/2022

DRAWN

SJA

TOLERANCES ARE:

DATE

THIRD ANGLE PROJECTION

NO MODIFICATION OF SPECIFIED

DIMENSIONS OR MATERIALS IS

ALLOWED UNLESS APPROVED

BY NOAA ENGINEERS.

BREAK SHARP EDGES 0.005 MIN

MACHINED FILLETS 0.015 MAX

SURFACE FINISH 125

DO NOT SCALE DRAWING

ANGLES 1

FRACTIONS 1/16

DECIMALS PLOT DATE

7600 Sand Point Wy NE Seattle, WA 98115 206-526-6800

DATE

3/25/2020

SHEET

PRODUCT

Pop-Up

DIMENSIONS ARE

IN INCHES

ASSEMBLY NUMBER

500131 500131

CONFIGURATION REV.

Default A

C

Sheet1
Drawing View4
Drawing View16
Section View D-D
Detail View F (1 : 2)

Sheet2

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