123460-2026-SWB-25(REBID)-2.pdf
PDF 405 KB Posted
- Solicitation number
- 123460-2026-SWB-25(REBID)
- Issued by
- Orleans Parish, New Orleans City, Louisiana
About this file
This is Addendum No. 2 to an Invitation to Bid issued by the Sewerage and Water Board of New Orleans for ITB 2026-SWB-25, covering check and gate valves for sewer and wastewater applications. The addendum provides responses to vendor questions and clarifies technical specifications for eight line items comprising approximately 68 valves in 6-inch, 8-inch, 10-inch, and 12-inch sizes, including both swing check valves and rising-stem gate valves. All valves must conform to specified standards including ANSI B16.10, ANSI B16.1, MSS SP-70, API 598, and ISO 9001:2008, with Class 150 pressure ratings. The original bid due date was October 6, 2026, at 11:00 a.m. CST. The initial contract term is one year with two optional one-year renewals, followed by up to three months of month-to-month continuation with 30-day written termination notice. Delivery is required within 30 calendar days of purchase order receipt, or bidders may propose their own manufacturing lead time for Board consideration. Delivery location is the Machine Shop at 8800 South Claiborne Avenue, New Orleans, on an F.O.B. Destination basis.
The addendum clarifies that valve body and bonnet materials must be cast iron (ASTM A126-B) with specific material grades for all components including stems, seats, wedges, and internal hardware. Epoxy coating is not required. External lever-and-weight assemblies are required for swing check valves. Face-to-face dimensions for the 12-inch swing check valve are confirmed as 27-1/2 inches for land length. Bolt-hole specifications for 10-inch valves are confirmed as twelve 1-inch-diameter holes on a 14-1/4-inch bolt circle. All eight line items are required; partial bids selecting only certain items are not acceptable. Bid prices must remain firm for 90 days after opening, and estimated quantities provided represent only the initial one-year contract period. A detailed ASME/ANSI B16.1 Cast Iron Flanges specification chart is provided as an attachment showing flange dimensions and bolt configurations for pipe sizes ranging from 1 inch through 60 inches.
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| File | Type | Posted |
|---|---|---|
| 123460-2026-SWB-25(REBID)-1.pdf | ||
| 123460-2026-SWB-25(REBID).pdf |
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Text version
“RE-BUILDING THE CITY’S WATER SYSTEMS FOR THE 21ST CENTURY”
Sewerage & Water Board OF NEW ORLEANS
625 ST. JOSEPH STREET
NEW ORLEANS, LA 70165 • 504-529-2837 OR 52-WATER
www.swbno.org
Addendum No. _2__
Date: 9/24/2026
Your reference is directed to the Invitation to Bid for: 2026-SWB-25 Check and Gate Valves for the Sewerage and Water Board of New Orleans, which proposals are due on October 6, 2026, at 11:00 a.m. CST.
1. Responses to Vendor Questions
1. Responses to Vendor Questions
a. Do the Check Valves on Bid# 2026-SWB-25 have to be AIS or BABA?
• No
b. The specs for the valves.
• APPLICABLE STANDARDS •Face to Face Dimension Conforms to ANSI B16.10 •Flanged Ends Conforms to ANSI B16.1 •Conforms to MSS SP-70 •Tested According to API 598 •Conforms to ISO 9001:2008
c. Bid item 7 for the 12” swing check valve specifies a land length of 27-3/8”.
The standard lay length for an AWWA C508 swing check valve is 27-1/2".
Could you confirm whether the lay length listed as 27-3/8" should instead be read 27-1/2"?
• 27-1/2" seems correct for the land length of the 12" check valve.
Variances in measurements on our end come from worn used valves and/or different tape measure tools tolerance.
d. What standards are required for the rising-stem gate valves and swing check valves—for example, AWWA C500, AWWA C508, MSS SP-70, or MSS
SP-71?
• Basic Design API 600 Face to Face Dimensions ANSI B 16.10 End Flange Dimensions 2" to 24"h ASME B16.5≥26" to ASME B16.47- A&B ASME B16.25 APPLICABLE STANDARDS •Face to Face Dimension Conforms to ANSI B16.10 •Flanged Ends Conforms to ANSI B16.1 •Conforms to MSS SP-70 •Tested According to API 598 •Conforms to ISO 9001:2008
e. What pressure rating is required: Class 125, Class 150, 150 psi, or another rating?
• Class 150 http://www.swbno.org/
f. Please confirm the required body and bonnet material, such as cast iron or ductile iron.
• Correct, see attached chart for reference.
g. For the required brass or stainless-steel seats, disc faces, and stems, please provide the acceptable material grades.
• Body Cast Iron A126-B;; Body Seat Ring Cast Bronze B62 3;; Wedge
Seat Ring Cast Bronze B62;; Wedge Cast Iron A126-B 5;; Stem Brass B16 6;; Bonnet Gasket Graphite Non-Asbestos;; Bonnet Bolt Steel A307-B;; Bonnet Nut Steel A536-B;; Bonnet Cast Iron A126-B;;
Packing Graphite Non-Asbestos;; Yoke Sleeve Ductile Iron A536 60- 40-18 12;; Gland Bolt Steel A307-B;; Gland Nut Steel A536-B;; Bolt Steel A307-B;; Yoke Cast Iron A126-B;; Nut Steel A536-B;; Stem Nut Cast Brass Mn- Brass;; Handwheel Washer Brass B16;; Handwheel Cast Iron A126-B;; Handwheel Nut Steel A563-B
h. Please confirm whether an epoxy coating is required and, if so, specify the coating standard and minimum dry-film thickness.
• Epoxy coating is not required.
i. Are external lever-and-weight assemblies required for the swing check valves?
• Yes
j. For the 12-inch swing check valve, please confirm whether the required face-to-face length is 27-3/8 inches, as stated, or 27-1/2 inches.
• Kennedy valve specs face to face length of 12” swing check valve as
26”. ASC Series 22FCW AWWA Swing Check Valve has a face-to-face length of 27.52”; 27-1/2" seems correct for the land length of the 12" check valve. Variances in measurements on our end come from worn used valves and/or different tape measure tools tolerance.
k. Please confirm the bolt-hole diameter for the 10-inch valves. The solicitation indicates twelve 7/8-inch-diameter holes.
• Pipe flange size 10 outside diameter 16 number of holes 12 diameter of bolt holes 1” bolt circle diameter in inches 14-1/4”.
l. Must every purchase order be delivered within 30 calendar days, or may bidders state their proposed manufacturing lead time on the Bid Form for the Board’s consideration?
• Stated lead time is acceptable.
m. Please clarify whether the approximate quantities are the estimated quantities for the initial one-year contract period or for the entire contract term
• Estimated quantities for 1 year contract period.
n. Please confirm whether bidders may quote selected line items rather than all eight items
• All items are required.
o. Flanges Specifications Chart
• See attached.
The changes, additions, and/or deletions included herein are hereby made part of the solicitation documents for 2026-SWB-25 Check and Gate Valves as fully and completely as if the same were set forth therein. The bidder shall be responsible for having knowledge of all addenda issued for this ITB.
This addendum consists of three (3) pages and one (1) attachment.
*** END OF ADDENDUM ***
Cast Iron Flanges - ASME/ANSI Class 125
ASME/ANSI B16.1 Cast Iron Pipe Flanges and Flanged Fittings - Class 125 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
ASME/ANSI B16.1 - 1998 - Cast Iron Pipe Flanges and Flanged Fittings - Class 125 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts:
Cast Iron Flanges - ASME/ANSI 125 lb
Pipe Size
(inches)
Outside Diameter
(inches) Number of Bolt Holes
Bolt Hole Diameter
(inches)
Bolt Circle
(inches)
1 4-1/4 4 5/8 3-1/8
1-1/4 4-5/8 4 5/8 3-1/2
1-1/2 5 4 5/8 3-7/8
2 6 4 3/4 4-3/4
2-1/2 7 4 3/4 5-1/2
3 7-1/2 4 3/4 6
3-1/2 8-1/2 8 3/4 7
4 9 8 3/4 7-1/2
5 10 8 7/8 8-1/2
6 11 8 7/8 9-1/2
8 13-1/2 8 7/8 11-3/4
10 16 12 1 14-1/4
12 19 12 1 17
14 21 12 1-1/8 18-3/4
16 23-1/2 16 1-1/8 21-1/4
18 25 16 1-1/4 22-3/4
20 27-1/2 20 1-1/4 25
24 32 20 1-3/8 29-1/2
30 38-3/4 28 1-3/8 36
36 46 32 1-5/8 42-3/4
42 53 36 1-5/8 49-1/2 https://www.engineeringtoolbox.com/ansi-cast-iron-flanges-d_297.html https://www.engineeringtoolbox.com/ansi-b16-pipes-fittings-standard-d_215.html
Cast Iron Flanges - ASME/ANSI 125 lb
Pipe Size
(inches)
Outside Diameter
(inches) Number of Bolt Holes
Bolt Hole Diameter
(inches)
Bolt Circle
(inches)
48 59-1/2 44 1-5/8 56
54 66-1/4 44 2 62-3/4
60 73 52 2 69-1/4
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