26QA004 Amendment 0001 Attachment 2 Drawing (revised) Chippewa M-001.pdf

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Multi-turn valve actuator, stem, and pedestal
Solicitation number
W912ES26QA004
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This is a technical drawing specification for a pedestal, stem, and stem cover assembly for the Low Flow Gate Machinery Replacement project at the Chippewa River Diversion in Watson, Minnesota, prepared by the U.S. Army Corps of Engineers, St. Paul District.

The pedestal assembly shall be fabricated from 304L/316L stainless steel plate per ASTM A240/A240M or ASTM A276/A276M, with a 3-inch Schedule 40S seamless pipe stem per ASME B36.19 and ASTM A312/312M specifications. The pedestal includes an 11-inch diameter base plate with eight evenly spaced 0.875-inch holes on a 9.5-inch bolt circle, and a 7-inch FA-14 flange at the top with four evenly spaced 0.688-inch holes on a 5.5-inch bolt circle per MSS SP-102. The stem features 2.000-inch ACME left-hand threads with specific pitch and length specifications, a tapped hole at the top for a lifting eyebolt, and is 33 inches minimum minus dimension Y1 in length. The stem cover assembly consists of a polycarbonate tube 60 inches plus dimension Y2 in length, with a PVC cap and adapter. Critical dimensions Y1 and Y2 are dependent on the selected actuator specifications and shall be determined from manufacturer catalog data. The contractor must provide actuator mounting hardware per manufacturer recommendations and may propose commercial off-the-shelf pedestals subject to contracting officer approval if there are variances in height or bolt hole patterns. The stem cover tube shall be fabricated 6 inches longer than required, with the government responsible for final sizing, cap attachment, and label application on-site.

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Other files

File Type Posted
Amendment 0003 QnA memo.pdf PDF
Amendment 0003 SF 30.pdf PDF
26QA004 Amendment 0002 SF 30.pdf PDF
26QA004 Solicitation (conformed version) - W912ES26QA0040001.pdf PDF
26QA004_Attachment_3___Lift_Force_Calculations.pdf PDF
26QA004_Attachment_1___Drawing___Chippewa_Low_Flow_Gate_Assembly.pdf PDF
26QA004 Amendment 0001 SF 30.pdf PDF

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PEDESTAL ASSEMBLY

NOT TO SCALE

STEM COVER ASSEMBLY

NOT TO SCALE

STEM

NOT TO SCALE

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US Army Corps of Engineers

SHEET ID

M-001

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GUSSET 6" x 3-3/4" x 1/4" TYP

(8) EVENLY SPACED (REF)

GUSSET 4" x 1-3/4" x 1/4" TYP

(4) EVENLY SPACED (REF)

3" SCHEDULE 40S PIPE

STEM NUT CENTERLINE

GENERAL SHEET NOTES

1. SELECT OR FABRICATE PEDESTAL USING 304L/316L STAINLESS STEEL PLATE PER ASTM A240/A240M OR ASTM

A276/A276M.

2. SELECT OR FABRICATE PEDESTAL USING 304L/316L SCHEDULE 40S SEAMLESS PIPE PER ASME B36.19 AND ASTM

A312/312M.

3. DIM Y1 IS DEPENDENT ON THE POSITION OF THE STEM NUT WITHIN THE SELECTED ACTUATOR. DIM Y2 IS

DEPENDENT ON THE HEIGHT OF THE SELECTED ACTUATOR AND PVC ADAPTER WHEN THREADED INTO THE

ACTUATOR. THESE DIMENSIONS ARE TO BE FOUND IN THE ACTUATOR MANUFACTURER AND PVC ADAPTER

MANUFACTURER CATALOG CUTS.

4. PROVIDE ACTUATOR MOUNTING HARDWARE PER MANUFACTURER'S RECOMMENDATION.

5. FA-14 FLANGE PER MSS SP-102. FA-14 FLANGE BOLT HOLE CLEARANCE NORMAL FIT CLASS PER ASME B18.2.8.

6. MACHINE-CUT OR COLD-ROLL THREADS PER ASME B1.5.

7. MAKE THE TAPPED HOLE AT THE TOP OF THE STEM OF SUFFICIENT DIAMETER AND DEPTH FOR THE INSERTION OF

AN EYEBOLT OF SUFFICIENT STRENGTH TO PICK UP THE ENTIRE STEM FROM A HORIZONTAL POSITION.

8. MAKE THE STEM COVER TUBE 6 INCHES LONGER THAN REQUIRED. DO NOT ATTACH STEM COVER CAP OR APPLY

THE STEM COVER LABEL. THE GOVERNMENT WILL CUT THE STEM COVER TUBE TO SIZE, ATTACH THE CAP, AND

APPLY THE LABEL ONSITE.

9. IF A COMMERCIAL OFF-THE-SHELF PEDESTAL IS PROPOSED, ANY VARIANCE IN PEDESTAL HEIGHT OR LOWER PLATE

BOLT HOLE PATTERN MUST BE APPROVED BY THE CONTRACTING OFFICER.

n7.000" FA-14 FLANGE

45.00° n0.688" HOLES ON 5.500"" BC TYP

(4) EVENLY SPACED

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I N

U

D n11.000" n0.875" HOLES ON 9.500" BC TYP

(8) EVENLY SPACED

n3.068" HOLE IN PLATE

TOP OF STEM AT GATE CLOSED

D

STEM COVER ASSEMBLY

TOP OF STEM AT GATE FULL OPEN

PVC CAP

PVC ADAPTER

STEM

TOP OF STEM AT GATE CLOSED

T R A V E L

POLYCARBONATE STEM COVER TUBE

P L U

S

D

THREADS: 2.000-0.25P-0.50L-ACME-2G-LH

TAPPED HOLE FOR LIFTING EYEBOLT

1/4

1/4

TYP

(REF)

1/4

1/4

TYP

(REF)

1/4

TYP

(REF)

1/4

TYP

(REF)

Ø 3.068" vØ4.000" x0.188"

22.50°

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THREADS: 2.000-0.33P-0.33L-ACME-2G-LH

1/8" X 45.00° CHAMFER

1/8" X 45.00° CHAMFER

P L U

S

D

REVISION HISTORY

ZONE REV DESCRIPTION DATE APPROVED

F18 1 STEM LENGTH 9/15/2026 DDA

N13 2 EDIT TO NOTE 3 9/15/2026 DDA

b6ct9jhr Highlight b6ct9jhr Highlight b6ct9jhr Highlight

File details come from the government source that posted it. Updated .