Purchase of a 30" Rate of Flow Backwash Valve and Actuator for Myers WTP

Mobile Area Water and
Sewer System
4725 Moffett Road
Mobile, AL 36618-2236
Joyce Sawyer, Buyer II PO Box 180249
(251) 694-3110 Office Mobile, AL 36618-0249
jasawyer@mawss.com
INVITATION FOR BID
JULY 31, 2026
INVITATION FOR BID NUMBER IFB 26-040
NAME OF BID Purchase of a 30" Rate of Flow Backwash Valve and Actuator for Myers WTP
MAWSS Purchasing Dept. Bid Box If sending bids by UPS/Fed Ex, deliver to:
East Visitor Entrance 1610 Shelton Beach Rd. Ext., Mobile, AL 36618
BIDS WILL BE RECEIVED AT
4725 Moffett Road Attn: Purchasing
Mobile, AL 36618 with IFB# marked on envelope
BID OPENING DATE August 18, 2026
BID CLOSING TIME 10:30 am Central Time
AWARD WILL BE MADE BY Total Cost & Lead Time
HE Myers Water Treatment Plant
MATERIAL DELIVERED TO 1475 Hubert Pierce Rd.
Mobile, AL 36608
Randy Sullivan (251) 378-3483 Email: lsullivan@mawss.com or
ADDITIONAL INFORMATION CONTACT
John Jordan (251) 378-3492 Email: jjordan@mawss.com
APPLICABLE SDP POLICY None
Sealed bids must be in the Purchasing Department no later than the time specified in order to be considered. Submissions
received after the deadline will not be considered. Envelopes must bear the name of the supplier, company address and the
words "IFB 26-040 30" Backwash Valve and Actuator" or "IFB 26-040 NO QUOTE." Facsimile or email bids will not be accepted.
All bids must be submitted on the attached forms, or your bid will be disqualified. Bidder shall furnish all the information
required by the solicitation. The bidder's name must be typed or printed on the bid sheet and signed by the bidder or
appropriate authorized executive officer of the bidder's company. Bidders must initial any changes or erasures. Bidders should
retain a copy of bids for their records.
Bidders shall acknowledge receipt of all addenda to this solicitation by signing and returning each addendum or by identifying
the addendum number and the date on the bid form. Failure to acknowledge receipt of any addendum by a bidder will result
in rejection of the bid if MAWSS determines that the addendum contains information that materially changes the requirements.
All bids shall be quoted FOB Destination, freight prepaid with no additional charges. Unless otherwise specified in the bid, all
prices will be on a firm-fixed price basis and are not subject to adjustments based on costs incurred. MAWSS reserves the right
to reject any or all bids submitted, to waive any informality in any bid or in the bid process, or to terminate the bid process at
any time, if deemed by MAWSS to be in MAWSS's best interest.
A Purchase Order and this "Invitation for Bid" with "Specifications," "Conditions," "Bid Form," signed by the successful bidder's
authorized representative, and all attached drawings and other documents furnished by MAWSS to the bidders with the
Invitation for Bid in order to illustrate the contract requirements, will constitute a contract for the goods and/or services to be
purchased.
IFB 26-040 30" Backwash Valve and Actuator Page 1 of 9

IFB 26-040 30" BACKWASH VALVE AND ACTUATOR
CONDITIONS
The Board of Water and Sewer Commissioners of the City of Mobile will accept bids for the 30" Backwash Valve and Actuator
in our Purchasing Department Bid Box located at the East Visitor Entrance at 4725 Moffett Road, Mobile, AL. 36618 no later
than 10:30 a.m. local time on August 18, 2026. Bids will be opened immediately after bid closing time in the Operations Center
Board room located at the East Visitor Entrance. Award will be by Total Cost & Lead Time. The bidder offers and agrees, if this
bid is accepted, to furnish the items as defined in the specifications for the unit price set opposite each item. Pricing shall be
FOB Mobile, Alabama. All items shall be delivered to HE Myers WTP at 1475 Hubert Pierce Rd, Mobile, AL 36608 or to the job
site as needed. The bidder shall state the expected length of delivery time on the Bid Form.
A site visitation is recommended. Please contact Randy Sullivan to set up a time for the site visit at 251-378-3483 or 251-533-
5202.
Bidder understands and agrees that manufacturer and part numbers are provided for descriptive purposes only. Items of equal
or better quality will be considered but must be approved by MAWSS in writing. Upon delivery, if the quality, durability or
performance of any product represented as equal or better is determined by MAWSS to be unsatisfactory, MAWSS will require
a suitable substitute or will require that the originally specified item be delivered, at the unit price originally offered by bidder.
No substitution for items to be provided pursuant to this contract shall be permitted during the contract period without the
express written consent of MAWSS. All items provided shall be for commercial use and for the purposes reflected in the
contract documents.
No bid on closed out or discontinued item(s) will be accepted. Item(s) that have a determinable shelf life must be disclosed at
the time of bid submittal. Bidder understands that his/her bid shall be good and may not be withdrawn for a period of sixty
(60) calendar days after the scheduled closing time for receiving bids.
MAWSS reserves the right to reject any or all bids submitted, to waive any informality in any bid or in the bid process, or to
terminate the bid process at any time, if deemed by MAWSS to be in MAWSS's best interest.
Bidder understands and agrees that quantities will be purchased by MAWSS on an "as needed" basis to replenish inventory.
MAWSS shall not be committed to the purchase of a pre-established minimum quantity for any one item.
A bidder may not modify its bid after bid opening. Errors in the extension of unit prices stated in a bid or in multiplication,
division, addition or subtraction in a bid may be corrected by the MAWSS Purchasing Buyer prior to award. In such cases, unit
prices shall not be changed.
It is the responsibility of the bidder to determine prior to the bid opening whether any amendment, additions, deletions or
changes of any type have been made to this Invitation for Bid, Conditions, Specifications, Bid Form or any other bid documents.
Bid documents and any amendments made to this bid will be posted on our website at www.mawss.com.
Invoicing Requirements: Invoices should be emailed to Accounts Payable at AcctsPayable@mawss.com with purchase order
number on the invoice.
END OF CONDITIONS
IFB 26-040 30" Backwash Valve and Actuator Page 2 of 9

IFB 26-040 30" BACKWASH VALVE AND ACTUATOR
SPECIFICATIONS
PART 1 EXPERIENCE REQUIREMENTS
A. All equipment shall be furnished by a supplier or manufacturer having at least twenty (20) U.S. installations of the
type being proposed, including coordination and assembly responsibility for the valve, actuator and associated
devices for a complete package, each with a minimum of ten (10) years of satisfactory service.
B. A list of similar installations shall be furnished with the shop drawing submittal, including names and telephone
numbers of contacts.
1.01 DELIVERY, STORAGE AND HANDLING
Delivery, storage and handling shall be in full accordance with manufacturer's instructions.
1.02 WARRANTY
All Valve and actuator assemblies shall be warranted for a period of two (2) years from date of shipment. A certificate
listing actuator serial numbers shall be provided prior to shipment in order to validate the warranty.
PART 2 PRODUCTS
2.01 BUTTERFLY VALVE FLANGED
A. One (1) new 30" flanged Dezurik BAW butterfly valve or equivalent shall be provided. Contractor is required to ensure
product bolt spacing matches existing equipment. Equivalency is not determined prior to bid opening. Equivalency is
determined at the sole discretion of the owner and is based upon characteristics that may include but are not limited
to material quality, sizing, durability, and other applicable characteristics relevant to the intended installation and use.
B. Butterfly valves 24-72" (600mm and larger) shall meet or exceed the latest revision of AWWA Standard C504 and shall
meet or exceed the requirements of this specification. All valves shall comply with the requirements of the AWWA
class specified or if the AWWA class is not specified, the valve shall meet the requirements of AWWA C504 class 150B.
C. Valve bodies shall be of cast iron per ASTM A126 Class B. Flanged end valves shall be of the short body design with
125lb. flanged ends faced and drilled per ANSI B16.1 standard for cast iron flanges. Mechanical joint ends shall meet
the requirements of AWWA C111/ANSI A21.11.
D. Discs shall be offset to provide an uninterrupted 360-degree seating edge and shall be cast iron per ASTM A48, Class
40C or ductile iron per ASTOM A536 (65-45-12). The disc seating edge shall be solid 316 stainless steel. The disc shall
be securely attached to the valve shaft using 304 stainless-steel. The disc shall be securely attached to the valve shaft
using 304 stainless steel taper pins. Discs structures containing hollow cavities are not acceptable.
E. Valve shaft shall be of type 304 stainless steel. Valve shaft seals shall be self- compensating V-type packing with a
minimum of four sealing rings. One-piece molded shaft seals and o-ring shaft seals are not acceptable.
F. The seat shall be of Buna-N for water, or as required for other services, and shall be retained within a dovetail groove
in the valve body and locked in place by an epoxy compound edge. Compression between the seat and disc edge shall
be adjustable from both the upstream and downstream side of the valve disc and the seat shall be field replaceable
without disassembly of the disc and shaft. Seats with unidirectional adjustment, seats retained in the valve body by
the use of fasteners and/or retaining rings, and seats retained on the valve disc are not acceptable.
IFB 26-040 30" Backwash Valve and Actuator Page 3 of 9

G. Valve shaft bearing shall be Teflon lined with a non-metallic fiberglass composite backing and shall be permanently
lubricated.
H. Unless otherwise specified, exterior and interior metallic surfaces of each valve shall be shop painted per the latest
reversion of AWWA C504.
I. If the actual valve operating conditions are provided within this specification, the valve actuator shall be sized to the
specified conditions, if actual operating conditions are not provided within this specification, per AWWA C504, the
valve actuator shall be sized to operate the valve at the rated working conditions of the valve. Each valve and valve
actuator shall be assembled, adjusted, and tested as a unit per the latest revision of AWWA C504, by the valve
manufacturer.
J. AWWA C504 Butterfly valves shall be DeZurik Water Controls BAW or equivalent. Handwheel, chainwheel, and buried
service nut actuators shall conform in all respects to AWWA C504.
2.02 PNEUMATIC ROTARY VANE C540-08 VALVE ACTUATOR DESIGN
A. One (1) new K-Tork pneumatic quarter turn rotary actuator with manual hand wheel operator or equivalent shall
be provided. Actuator must be delivered mated to provided butterfly valve as one complete unit. Equivalency is
not determined prior to bid opening. Equivalency is determined at the sole discretion of the owner and is based
upon characteristics that may include but are not limited to material quality, sizing, durability, and other
applicable characteristics relevant to the intended installation and use.
B. Actuator Design: Pneumatic actuators are to be of the vane type design with only one (1) moving part. Actuator
shall have a vane position indicator milled into the output shaft. One side of the actuator shall be manufactured
to ISO/NAMUR mounting standards for attachment of accessories (limit switches, indicators, positioners). Seals
shall be double-opposed lip seals with stainless steel expanders. Seal backing plates shall be steel. O-ring seals on
vane will not be acceptable.
C. Actuator Materials of Construction:
1. Housing: Pressure die cast ADC1 or A356 aluminum casting with all surfaces coated with thermosetting
polyester powder coat with Ultraviolet Inhibitor. Zinc housing will not be permitted. Actuator housing
to include industry-standard NAMUR accessory mount interfaces as an integral part of the housing. The
NAMUR VDI/VDE 3845 to be included on top of the actuators and on the solenoid manifold to allow for
the easy installation of standard actuator control accessories.
(i) Provide actuator manufacturer standard epoxy coating.
(ii) All threaded fittings shall have a locking and sealing compound designed for metal tapered threads
and fittings. All actuators shall be tested after assembly. Actuators shall not require more than
three (4) psig to be cycled a complete stroke in each direction before they are connected to the
valve. Test report documenting zero (0) cross vane leakage shall be submitted prior to shipment.
2. Vane / Output Shaft: Steel ASTM A148 per AWWA C540-2, Grade 115-95, heat treated with electroless
nickel-plated finish. Ductile Iron vane / output shafts will not be acceptable.
3. Vane Seals: HBNR highly saturated Buna Nitrile, rated -5 to +300 degrees F., no exception.
4. Shaft Seals: Buna N.
5. Vane Seal Expanders: Stainless spring steel.
6. Side Plates: Steel with all surfaces coated with manufacturer standard epoxy powder coat.
IFB 26-040 30" Backwash Valve and Actuator Page 4 of 9

D. Actuator Position-Control Capability:
1. Open/Close Valves: Actuators shall be solenoid operated. Solenoids for smaller size actuators shall be
standard ISO/NAMUR VDI/VDE 3845 direct mounted with the option to be remote mounted for
increased accessibility. Solenoid coils shall be 120 VAC / 60 Hz, NEMA 4 rated. Speed control devices
shall allow independent adjustment of OPEN and CLOSE cycling speed. Each solenoid valve to include
manual override to lock-and-hold valve in either the OPEN or CLOSE position in the event of a power
outage. Exhaust air mufflers shall be standard. Provide 80 to 150 PSI clean, dry air to solenoid valve.
1/2" conduit CSA black connector. Form B, 22mm coil, Class F, cURus, Nema 4X. Solenoid valves shall
be K-TORK 'SIDEWINDER' Series.
Each Open/Close actuator shall include valve position feedback limit switches for remote OPEN and
CLOSE indication. Two SPDT switches shall be housed in a NEMA 4/4X nickel plated aluminum enclosure
with transparent polycarbonate lid, ensuring a device totally unaffected by corrosion, in salty and humid
atmosphere. 3D Dome-style visual valve position indicator that can be seen from above and from the
side. The switch box output shaft and fasteners to be stainless steel and shall mount to the actuator
per NAMUR VDI/VDE 3845 with a stainless-steel bracket. The two electromechanical switch contacts
shall be rated 5A@250 VAC, 0.5A@24 VDC, resistive/inductive. Limit switches shall be adjustable by
press, turn and release motion requiring the use of no tools. The limit switch assembly to be UL and
CUL Listed and approved and shall be manufactured by Rotork / K-TORK 'SOLDO' Series.
The solenoid coil must be pre-wired to spare terminals labeled 'Solenoid Valve' inside the limit switch
enclosure and all field connections for both the limit switches and solenoid valves shall be terminated
inside the limit switch box.
2. Modulating Valves: The actuator shall be designed to control the valve in all positions from fully open
to fully closed, and from fully closed to fully open with control in any intermediate position
corresponding to the variable controls system input. Actuator shall be K-Tork KT-60 Pneumatic Actuator
with standard Electro-Pneumatic Positioner YT3300, 4-20mA, FOC, CSA/FM. Positioner shall consume a
MAXIMUM of .070 SCFM while in the resting state. Positioners consuming greater than .070 SCFM will
not be acceptable. Modulating actuators shall be supplied with intelligent SMART diagnostics.
Positioners shall have ISO/NAMUR VDI/VDE 3845 standard output shaft to allow direct mounting to
actuator without need for adaptors. The positioner will receive a 4-20 mA positioning signal from the
control system for precision positioning control of the valve in all positions from closed to open. As
standard, the positioner shall include an Auto / Manual switch to allow for local actuator control without
removing the positioner cover. Additionally, the positioner will have four pushbuttons for local control
located inside the enclosure. The positioner shall have auto-stroke / auto-calibration capability as
standard for easy commissioning. LCD 0-100% visual indication of valve position will be located in the
positioner cover. Where specified in the Valve Actuator Schedule, provide optically isolated analog 4-
20 mA position transmitter, (2) mechanical limit switches or both, mounted inside the positioner
housing. Positioner construction shall be of Aluminum or Stainless Steel (optional), with NEMA 4/4X,
IP66 rating and be suitable for -22 degrees F. to +185 degrees. Fasteners to be stainless steel. Provide 60-100 psi clean
dry supply air to the positioner. Positioner shall be manufactured and supplied by the actuator
manufacturer and shall be intended for use with the actuator provided for modulating application.
Positioner shall be as manufactured by Rotork / YTC #3300R.
3. Mechanical Manual Override: Where specified in the Valve Actuator Schedule, actuator shall include a
mechanical worm gear manual override de-clutch gearbox and hand wheel to be mounted between the
valve and the actuator. The manual override shall be able move and hold the valve in any position
between full OPEN and full CLOSE. When the actuator is in 'AUTO' operation, the gear shall be de-
clutched and will 'free wheel'. To use the override, isolate the incoming air supply and bleed all pressure
IFB 26-040 30" Backwash Valve and Actuator Page 5 of 9

from the actuator, then engage the worm to the segment. The engagement lever shall include a
stainless-steel legend plate clearly identifying the lever position with "AUTO" and "MANUAL". The
manual override shall be capable of remaining on the valve and fully operational with the actuator
removed and include two mechanical valve position stops. The manual override shall have a cast iron
housing and stainless-steel input shaft and fasteners, rated for IP68 / NEMA 4/4X environments. The
manual override shall have an EPOXY NZ PRIMER and Polyurethane finish paint, both 40 - 60 microns.
Hand wheel diameter to be selected to limit rim pull to a maximum of 80#. Include 3-way actuator vent
valve(s) as required to bleed the actuator and isolate the supply air during manual operation. The 3-
way vent valve(s) shall include "Auto" and "Manual" legend plate and the hand wheel shall include OPEN
and CLOSE designations and directional arrows. The de-clutch manual override shall be manufactured
by Rotork / K-TORK, the actuator supplier without exception.
E. Accessories such as limit switches, positioners, solenoid valves, speed controls, piping and tubing, as required by
the specification, shall be mounted and tested by the actuator manufacturer to the actuators prior to shipment
to the jobsite.
F. Torque Capability: The rated torque capability of each actuator shall be sufficient to seat, unseat, and rigidly hold,
in any intermediate position, the valve disc it controls under the operating conditions specified herein. Torque
safety factors shall conform to AWWA Standards and in no case be less than 1.5 times the valve manufacturers
specified torques based on operating conditions. Size actuator using 80 PSI instrument air.
G. Safety Factor: Actuator housings, supports, and connections to the valve shall be designed with a minimum safety
factor of 5, based on the ultimate strength, or a minimum safety factor of 3, based on the yield strength of
materials used.
H. Stop-Limiting Devices: Valve actuators shall be equipped with adjustable mechanical stop-limiting devices to
prevent over-travel of the valve disc in the open and closed positions. Position stops shall provide, at minimum,
80 to 100 degrees of adjustable travel.
I. The pneumatic actuators shall have a working pressure of 150 psig per AWWA C540-2 standards with an overload
pressure of 220 psig. Actuators with a published 100 psig maximum operating pressure rated will not be
acceptable.
J. Actuators shall be equipped with adjustable flow-control devices controlling the operating air exhausting from
the actuator. The devices shall be located at or near the actuator or on the solenoid valve. The opening and
closing speeds shall be nominally set for a range of 30 to 90 seconds, variable with valve sizes. Final adjustments
shall be made by the purchaser to minimize line surges during normal operation.
K. Actuators shall not require more than three (4) psig to be cycled a complete stroke in each direction before they
are connected to the valve.
L. Actuator Testing:
1. Performance Tests: Each actuator and valve assembly shall be cycled a minimum of three (3) times
prior to assembly to the valve and in the field using the start and stop controls from the fully closed
to the fully open position to demonstrate that the complete assembly, including controls, operates
properly.
2. Test Certification: Certification of tests and copies of test or certificate of conformity reports shall
be provided on request if the request is made prior to the time of testing.
M. Bracket and Couplings:
1. Custom fabricated bracket to adapt the actuator to the new or existing (retrofit) valves shall be heavy
wall rectangular carbon steel tube and shall retain the valve stem packing or provide for use of the
IFB 26-040 30" Backwash Valve and Actuator Page 6 of 9

original draw-down packing gland as required.
2. All brackets and couplings shall have electro statically applied fusion bonded polyester powder coated
finish.
3. Couplings shall be made of bar stock carbon steel with keyway and stainless-steel setscrew.
2.03 OPERATOR AIR TUBING
Air tubing on valve operators shall be rubber or stainless steel. Air tubing shall be sized according to actuator size.
2.04 FIELD QUALITY CONTROL
Verify that structures, equipment, pipes, valves, fittings, and other appurtenances are compatible. Coordinate field
devices, voltages, signal types, power needed, and programming with valve operator to provide proper functioning
system.
2.05 MANUFACTURER'S REPRESENTATIVE
A. The services of the manufacturer's technical representative shall be provided for pre-startup installation checks,
startup assistance, training of Owner's personnel, troubleshooting, acceptance testing, and other services as
required within these Contract Documents.
B. Manufacturer's representative shall:
1. Approve installation in writing to the Owner (MAWSS) before operation.
2. Verify conformance to all specified requirements.
3. Fully instruct all designated personnel for the plant on proper care, maintenance, and operation of all
equipment and appurtenances.
4. Perform specified acceptance tests and operate system to verify satisfactory operation of all equipment
in presence of Owner's personnel and Engineer.
5. Check all equipment for excessive noise or vibration, proper alignment, general operation, etc.
6. Operate the equipment through the design performance range consistent with available flows. Adjust,
balance, and calibrate and verify that the equipment, safety devices, controls, and process system
operate within the design conditions. Each safety device shall be tested for proper setting and signal.
Response shall be checked for each equipment item and alarm. Simulation signals may be used to check
equipment and alarm responses.
7. Place each piece of equipment in the system in operation until the entire system is functioning. All
components shall continue to operate without alarms or shutdowns, except as intended, for 8
consecutive hours to be considered started up.
8. Submit certified written field reports as required by Section 01301.
9. Provide a certificate by the valve actuator supplier indicating proper installation (by others) and start-
up procedures have been followed. This certificate shall be required and included as part of the final
operation and maintenance manuals in order to validate the specified two (2) year warranty.
IFB 26-040 30" Backwash Valve and Actuator Page 7 of 9

10. Revisit job sites as often as necessary beyond minimum services specified to correct deficiencies to
satisfaction of the Owner (MAWSS).
2.06 ACCEPTANCE TEST
A. Upon completion of the installation (by others), of each valve actuator, an acceptance test will be conducted to
verify the satisfactory operation and performance of each actuator. Each valve shall be opened and closed using
the plant control system as applicable (AUTO) and manually. The control valves shall also be tested under power
loss to verify proper closure.
B. The test shall be conducted in a manner approved by and in the presence of the OWNER.
C. Each valve actuator must perform in a manner acceptable to the Owner before the OWNER will make final
acceptance.
END OF SPECIFICATIONS
IFB 26-040 30" Backwash Valve and Actuator Page 8 of 9

IFB 26-040 30" BACKWASH VALVE AND ACTUATOR
BID SHEET
30" Backwash Valve Cost $
Mfr/Model _________________________
Actuator Cost $
Mfr/Model _________________________
Total Cost* $
*Must include all charges, including but not limited to warranty, freight, tariffs, etc.
Delivery (ARO):
(After receipt of order)
Company Name Payment Terms
Address
City, State, Zip
Submitted By Title
Please Print
Phone Email Address
Please Print
The signer declares under penalty of perjury that she/he is authorized to sign this document and bind the company or
organization to all terms and conditions of this agreement.
Signature Date
IFB 26-040 30" Backwash Valve and Actuator Page 9 of 9