WA9301-SP 971216City of Dallas
Date: December 16, 1997
Submittal No. 15010-03b
To:
Bar Constructors, Inc.
P.O. Box 10
Lancaster, Texas 75146-0010
Attemion: Ms. Lucy Garci'a
Subject:
Copper 2 Metering Station
Contract No. 94-81
Gentlemen:
We are returning the following submittal data:
IDENTIFICATION
DESCRIPTION
M&H 4500
12" AWWA C504 Butterfly Valve - M & H Valve Co.
12/5/97
Letter from Municipal Valve Co~
DISPOSITION
9 3 X
9 3
X
Distribution:
Design Engineer - 1
Project Manager - 5
(Pile - 1), (Pield - 2), (Copper - 1), (Pumping - 1)
Services
Water Utilities Department
Design Sewices · 320 E. Jefferson, Rm 213 · Dallas. Texas 75203 · 214 1948-4576 · FAX 214 / 948-4599
A city utility providing regional water and wastewater sewices vital to public.health and safety.
MUNICIPAL
VALVE
CORPORATION
P. O. Box 86, Addison, Texas 75001
(214) 934-1261 * FAX (214) 934-1264
Dallas Water Utilities
c/o Design Services
320 East Jefferson Street, Rxn. 213
Dallas, Texas 75203
Attn: Henry G, Niblo, P.E.
ReE Coppell 2 Metering Station
12/5/97
Henry,
I am in receipt of the "Revise and Resubmit" submittals for the 12' flange butterfly valve
for the above project. There is not a manufacturer who meets the requirements of the 1995
addendure to NTCOG specifications and the NSF60 & 61 requirements stated in section 15010,
1.04, A for this 12' valve. The attached valve not only meets the NSF 60 & 61 requirements but
also the latest Dallas Water Utilities butterfly valve specification (attached) which was revised in
December 1996. I would also like to confirm that the valve will be supplied with a Buna-N seat
and the shaft seal utilizes a self-adjusting Chevron design as stated in section V, H, 1, b of the
revised specifications.
Please accept this as a formal resubmittal for your consideration.
If you have any questions, please do not hesitate to contact me.
Sincerely,
Chris Bradley
coppellbv
NO EXCEPTION TAKEN []
MAKE CORRECTIONS NOTED []
REVISE AND RESUBMIT []
REJECTED []
FOR RECORD ONLY
REVIEW P-,Y THE ENGINEER DOES NOT
f~L~F'v'E THE CONTRACTOR FROM
RE$/-ONSI3iLITY FOR CONFORMANCE
WliH CONTRACT REQUIREMENTS.
PROJECT %~' ~ ?-
CONTRACT # C~4-'
DALLAS WATER UTILITIES DEPT.
REVIEWED
BAR CONSTRUCTORS, INC.
DATE 1~-1~-9 ~
TRANS. #/..fo/o -- o'~ ~
BAR Ccn;;tri~ctor~ !nc. r~,presents that W~
have ~cf,-~rmic, cd ar.d ver?a~d a~ field
d;m~r~s:on~ ~;~d measur~men~s,
numbers. and similar dat~, ar.d ~h~t we have
chec~'Gd w~h ~h9 ~ui~ents o~ the Wo~
an~ th~ C~tract Document.
Dallas · Houston
SPECIFICATION FORM
REQUESTING DEPARTMENT:
WATER DISTRIBUTION
ORG. NUMBER:
7422
DEPARTMENT AUTHORIZATION:
SPECIFICATION TITLE <'
BUTTERFLY VALVES
DO NOT WRITE BELOW THI~ LINE
SPECIFICATION NUMBER:
BUYER'S INITIALS:
Assigned by Purchasing
PUR-01976A
CITY OF DALLAS
DALLAS WATER UTILITIES DEPARTMENT
SPECIFICATION (REVISED)
for
BUTTERFLY VALVES
NO EXCEPTION TAKEN
MAKE CORRECTIONS NOTED
REVISE AND RESUBMIT
RF-JECTED
FOR RECORD ONLY
REVIEW BY 'THE ENGINEER DOES NOT
RL.L~LvC 'i',-~E CONTRACTOR FROM
RE~Or'4,];!31LITY FOR CONFORMANCE
Wi i'H GO;'(FRACT REQUIREMENTS.
RO.jECT C
CONTRACT ~
DALLAS WATER UTILITIES DEPT,
RE.V EWED
BAR CONSTRUCTORS, INC.
DATE I ~" l a ' ~ ")
GAP Cc:~:~,~Tuct~, !;m. ~;~re~.~r, fs that ~
numbers, ~,md s%mfi~r dai~, and that we h~
checked ,~4~h the requ~rments of the Wo~'
and tn~ Contact Documents.
Revised: December, 1996
II.
III.
CITY OF DALLAS
DALLAS WATER UTILITIES DEPARTMENT
BUTTERFLY VALVE SPECIFICATION (REVISED)
TABLE OF CONTENTS Revised: December, 1996
GENERAL
B.
C.
D.
E.
F.
Scope ................................................................... 1
Quality Assurance ......................................................... 1
Contractor-Furnished Valves ............................................ · .....2
Detailed Drawings ......................................................... 2
Experience ............................................................... 2
National Standards ......................................................... 2
MATERIALS
Ae
B.
C.
D.
E.
F.
G.
H.
Body .................................................................... 2
Disc ..................................................................... 2
Valve Seat ............................................................... 2
Valve Shaft ............................................................... 3
Shaft Bushings ............................................................ 3
Bolting Materials ........................................................... 3
Gaskets .................................................................. 3
Wrench (Operating) Nut .................................................... 3
INTERIOR COATING
B.
C.'
D.
E.
Surface Preparation ........................................................ 3
Coating System Compliance ................................................. 3
Coating Thickness ......................................................... 4
Coaling Integrity ........................................................... 4
Coating Documentation ..................................................... 4
EXTERIOR COATING
Surface Preparelion ........................................................ 4
Coating System ........................................................... 4
DESIGN REQUIREMENTS
B.
C.
D.
E.
F.
G.
H.
I.
Flanges .................................................................. 5
Body .............................................................. Z .....5
Disc ..................................................................... 5
Valve Seat ............................................................... 5
Valve Shaft ............................................................... 6
Shaft Bushings ............................................................ 6
Shaft Thrust Bearing .............................................. ' .........6
Shaft Seals ............................................................... 6
Shaft Torque Capability ..................................................... 7
VIII.
VALVE ACTUATOR
B.
C.
D.
E.
F.
G.
Design ................................................................... 7
Test Results .............................................................. 7
Position Indicator .......................................................... 7
Direction of Operation ...................................................... 7
Capable of Submerged Operation ............................................ 7
Manual Actuators .......................................................... 7
Electric Actuators .......................................................... 7
PRODUCTION TESTS
Performance Test ......................................................... 8
Leakage Test ............................................................. 8
Hydrostatic Test ........................................................... 8
METALLURGICAL TESTING
A. Independent Testing ....................................................... 8
B. Data Required ............................................................ 8
IX.
XI.
Xll.
NATIONAL SANITATION FOUNDATION (NSF) STANDARD 61
A. Compliance .............................................................. 8
ACCESSORIES
A. Nuts and Bolts ............................................................ 8
B. Gaskets .................................................................. 8
PACKAGING
A. Nuts and Bolts ............................................................ 9
B. Gaskets .................................................................. 9
C. Valves ................................................................... 9
VERIFICATION OF COMPLIANCE WITH SPECIFICATION
A. Documentation ............................................................ 9
2
CITY OF DALLAS
DALLAS WATER UTILITIES DEPARTMENT
SPECIFICATION (REVISED)
for
BUTTERFLY VALVES
Revised: December, 1996
GENERAL
Scope; This specification covers Butterfly Valves in sizes.10" through 120" which shall
conform to the features and material specitications of the latest revision of the AWWA
C504 Standard, as amended by this specification.
(1)
These valves shall be suitable for fresh water having a pH greater than 6 and a
temperature less than 125eF.
All valves shall be designed for a maximum steady-state fluid working pressure of
150 psig and a maximum steady-state differential pressure of 150 psig.
All valves shall be Class 'B' valves designed for a maximum velocity of no less
than 16 feet per second.
All valves shall be of the short-body full ~anged face design, with Class 125 ANSI
drilled flanges.
(5)
The valve operating nut shall be painted black and shall open in a counter-
clockwise direction.
(6)
All butterfly valves shall be furnished complete as specified including accessories
and shipping and handling costs.
Qualib/Assurance:
(1)
Each manufacturer who provides butterfly valves under this specification shall
have an approved Quality Assurance Program for controlled manufacturing in
effect at the manufacturer's facility throughout the manufacturing cycle. This
Quality Assurance Program shall conform to a nationally-recognized standard for
quality assurance programs and shall apply to all phases of manufacturing from
procuremerit of matefists through shipping of the completed product.
(2)
All materials used for bedles, discs, seats (resilient and metal), and shafts shall be
certified by the material supplier. Certification shall consist of the results of
chemical and mechanical property tests which conform to a detailed Quality
Assurance Manual. The Manual shall be available for review and the
manufacturing facility available for a quality audit at the convenience of the
OWNER. A Quality Assurance Manual shall be included in the required
submittals.
Contractor-Furnished Valves: All Contractor-furnished butterfly valves must be approved
by the Dallas Water Utilities Department (DWUD). A list of butterfly valves by trade name
is maintained by the DWUD. This information may be obtained by contacting:
Manager
Pipeline Project Management
2121 Main Street, Suite 300
Dallas, TX 75201
Telephone: (214) 948-4242
For a non-binding review of materials not shown on the list by trade name, contact:.
Materials Engineer
Distribution DMsion
4120 Scottsdale Drive
Dallas, TX 75227
Telephone: (214) 670-8459
Detailed Drawinas: Complete approved drawings, details, and sped~caUons shall be filed
with the Dallas Water UUltties Department Distribution DMsion prior to acceptance and
approval of any vane. The drawings shall contain dimensional data on all components of
the valve and shall show a complete materials list which includes the descdpUon and
applicable ASTM reference for each part;
E,
Experience; The manufacturer shall have a minimum of five (5) years experience in the
production and sales of AWWA C504 butterfly valves. A qualified list of customers,
including the name of the organization, address, the name of a representative, and
telephone number shall be available upon request.
National Standards: All ANSI, ASTM, and AWWA Standards referred to herein shall be as
last revised. in the case of conflict, this Specification shall govern.
II.
MATERIALS
A. Body: The valve body shall be made of either gray iron per ASTM A48 Class 40 or ASTM
A126 Class B, or ductile iron per ASTM A536, Grade 65-45-12 or Grade 70-50-05.
Disc: Valve discs for valves 10" through 66" in diameter shall be manufactured of ASTM
A536 Grade 6545-12 ductile iron. Valve discs for valves 72" through 120" in diameter
shall either be manufactured of ASTM A536 Grade 65-45-12 ductile iron or may be of
ASTM A516 Grade 60 fabdcated steel.
Valve Seat: The resilient valve seats shall be of Buna-N syntheUc rubber. The mating seat
surface, integral with the valve body or contained on the disc edge, shall be 188, Type 304
stainless steel. Sprayed or plated maUng seat surfaces are not acceptable.
D. Valve Shaft: Valve shafts shall be manufactured of 18-8, type 304 stainless steel.
Shaft Bushinas: Shaft bushing material shall be as recommended by the manufacturer
provided that bushing material is disclosed to the OWNER and approved by the OWNER
pdor to the manufacturer of any valves for provision under this specification. (See Section
V.F. of this Specification.)
Boltina Materials:
(1)
All valves from 10" through 48" in diameter shall be provided with ASTM A325
Type 3 Weathering Steel heaW hex main flange bolts dimensioned in accordance
with ANSI Standard B.18.2.1. All nuts for the ASTM A325 Type 3 flange bolts shall
be ASTM A563, Grade C3 Weathering Steel heavy hex nuts dimensioned in
accordance with ANSI Standard B.18.2.2.
(2)
All valves from 54" through 120" in size ordered with ~anged end configurations
shall be provided with Type 316 stainless steel heaW hex flange bolts. Bolt heeds
shall be hexagonal, with dimensions conforming to ANSI B18.2.1. All nuts shall be
Type 316 stainless steel heavy hex, with dimensions conforming to ANSI B18.2.2.
Gaskets: All valves with ~anged ends shall be provided with 118" thick rubber ring gaskets
of the 'F!ange-Tyte" ribbed design patented by U.S. Pipe, or an approved equal. All dng
gaskets shall be dimensioned in accordance with Table A.1 of Appendix A of the AWWA
Standard C110, latest edition.
Wrench
(1)
(2)
(3)
(4)
(ODeratinol Nut:
The wrench nut shall be made of either grey iron per ASTM A126, Class B, or
ductile iron per ASTM A536.
The nut shall be 2" square at the base, 1 15116" square at the top, and 1 314" high.
An arrow indicating the direction of opening and the word 'OPEN' shall be cast in
the nut (or on the body adjacent to the nut).
The nut shall be mechanically secured to the valve by means of an hexagonal
stainless steel or bronze bolt for easy removal. A pressed pin/roll pin that requires
knocking out is not acceptable,
III.
INTERIOR COATING:
Surface Preparation: All interior ferrous surfaces of the valve exposed to water anc~ subject
to corrosion shall be prepared in accordance with the printed recommendations of the
manufacturer of the coating which is to be applied.
Coatjna System Compliance: The interior coating system shall be in compliance with the
AWWA C550 Standard, shall immediately follow the surface preparation, and shall be a
coating system which has received Certification of Compliance with the NSF 61 Standard
for this particular application.
Coatina Thickness: The coating shall be applied in accordance with the coating
manufacturer's printed instructions. The finished dry thickness of this coating in mils shall
be within the range recommended by the manufacturer. The coating shall be applied to all
stationary intedor ferrous surfaces including all intedor openings in the valve body. The
coating shall not be applied to the gasket surfaces of the end flanges.
Coating Inte~3ritv: Al~er the coating is completely cured, the coated surface shall be tested
for porosity holidays and pinholes in accordance with Section 5.1 of the AWWA 550
Standard. All holidays or irregularities shall be repaired in accordance with the coating
manufacturer's printed instructions and the coating again tested. This process shall be
repeated until the coating passes the holiday tesL
Ee
Coatina Documentation: Upon request, the valve manufacturer shall furnish to the City of
Dallas spedtic data on:
(1)
The coating system used, including the name of the manufacturer of the coating
system and the specific coafing system designation.
(2)
A copy of the coating manufacturer's printed surface preparation and application
instructions.
(3)
Verification of Cer!ffication of Compliance with the NSF 61 Standard for this
application of this coating.
(4)
Verification that all valves supplied have in fact passed the Coating Integrity Test
required by Section III D of this specification.
(5)
A copy of the coating manufacturer's printed instructions for the valve
manufacturer's repair of holidays and pinholes which are detected in the coating.
(6)
A copy of the coating manufacturer's printed instructions for field repair of damage
to the coating.
EXTERIOR COATING:
A. Surface Preparation: All exterior surfaces shall be prepared in accordance with the printed
recommendations of the manufacturer of the coating which is to be applied.
Be
Coatina System: The extedor ferrous surfaces of each valve shall be coated in
accordance with the AWWA C 504 Standard, as detailed below:.
(~)
Two different exterior coating systems will be required, depending upon wh. ere the
valve is to be installed:
ae
Unless otherwise spedfled, the exterior of the butterfly valve shall, at a
minimum, be shop coated with a suitable metal primer to a dry film
thickness of not less than three (3) mils. Flange faces shall be protected
from atmospheric corrosion. If the manufacturer wishes, the extedor of
the butterfly valve may be coated with the valve manufacturer's standard
exterior paint/epoxy coating system in lieu of just a primer coat.
4
(2)
For butterfly valves which are ordered direct by the City of Dallas and
destined for direct-burial applications, a two-coat asphaltic emulsion ·
extedor coating in accordance with Section 4.2.2.1 of the AWWA C 504
Standard shall be called for in the valve order. The asphaltic emulsion
shall conform to Federal Specification TT-C-494b.
There is no requirement for Certification of Compliance with the NSF 61 Standard
for any extedor coatings.
DESIGN REQUIREMENTS:
All valves shall be designed so that the following conditions are met:
A. Flancies: The dimensions and drilling of end flanges shall conform to ASME/ANSI B16,1,
Class 125, with full-sized bolt holes through the flanges.
Body: Regardless of whether gray iron or ductile Iron is used for the body, the body shall
be full-dimensioned, with a minimum body shell thickness as shown in Table 2 of the
AWWA C504 Standard. No thin-wall or 'compact' design valves shell be acceptable.
Castings shall be clean and sound with no structural defects. The following information, at
a minimum, shall be cast in raised letters into the body: Manufacturers' name or symbol,
year assembled, size, rated working pressure, and direcfion of flow.
Disc: Butterfly valve discs for valves 30" in diameter and larger shall be of the 'off-set'
design in order to provide a full 360 degree seating surface, uninterrupted by the shaft
holes. Discs for valves of all sizes shall be designed so that there are no external dbs
transverse to the flow direction.
(1)
Valve Seat:
For all sizes of valves:
The resilient Buna-N seat shall be incorporated in the valve disc edge or in the
valve body.
Resilient seats shall be mechanically retained by means of stainless steel damps,
stainless steel rings, and 18-8 stainless steel bolts.
C®
Resilient seats shall be capable of mechanical adjustment in each direction
without the use of special tools.
Resilient seats must also be capable of replacement in the field without chipping,
grinding, or burning out the old seat. No seat retention designs which utilize
bonded seats or epoxy injection for a wedging action against the resilient seat or
which require any 'setling' or 'curing' time shall be acceptable.
For valves 30" and larger, replacement of the mechanically-retained resilient seat shall be
possible without removing the valve from the system.
Valve Shalt: Valve shafts for valves 30" ~and larger shall be of the two-piece type extending
into the valve disc hubs for a dbtance of at least one and one-half shaft diameters. Valves
smaller than 30" in diameter may have solid one-piece shafts. In all cases and for all sizes
of valves, the minimum valve shaft diameter shall be as specified in the AVVVVA C504
Standard, latest edition; or as specified below:
Valve Size Minimum Shaft Diameter
78" 9.25"
84" 10.00"
90" 10.75" ,
96" 11.50"
102" 12.00"
108" 12.75"
114" 13.50"
120" 14.25"
Shaft Bushincls: Valve shaft bushings shall be designed by the manufacturer to insure that
they provide effective, long-lasting bearing surfaces for the support of the valve shaft
without binding, dragging, or damaging the shaft under continuous full pressure differenlial
loading conditions. Shaft bushings shall be contained in the integral hubs of the valve body
and shall be of a one-piece 'self-lubricated sleeve" design constructed of bronze-backed
P.T.F.E. material, or an approved equal. No alternate valve shaft bushing design will be
accepted by the City of Dallas until detailed drawings, materials data, and performance test
results on the altemate bushing have been provided to, analyzed by, and accepted by the
City of Dallas.
Shaft Thrust Bearinf3: Butterfly valves 30" in diameter and larger shall be fumished with a
factory-set two-way thrust beadng on the valve shaft which shall be capable of being
adjusted in the field without re-drilling, without re-pinning, and without the use of special
tools.
Shaft Seals
(1)
On valves of all sizes, where the valve shaft projects through the body of the valve
for the actuator connection, a shaft seal shall be provided. This seal may be of
either design stated below:
The seal may be of the type utilizing a stuffing box and pull down packing
gland so that the pacing can be adjusted or completely replaced without
disturbing any part of the valve or actuator assembly except the pacing
gland follower. Packing shall be of the non-asbestos self-adjUsting split-V
or square type.
b. The seal may be of the self-adjusling Chewon design.
(2)
Where the valve shaft engages the thrust bearing, the valve shall be equipped with
a thrust stub shaft d6ver o~ stub '~ihaft end cover utilizing either an O-Ring seal or
an asbestos-free gasket to prevent leakage. The use of pacing and/or thread
seal washers to prevent leakage are not acceptable.
Shaft TorQue CapabilitY: Valves up through 72" in diameter shall be capable of
withstanding the shaft torques tabulated under Class 150B in Table 4 of the AWWA C504
Standard, at a minimum, without deformation or damage. The shafts of valves larger than
72" in diameter shall meet the material and dimensional specfficalions called out in this
specification.
VI.
VALVE ACTUATOR:
A. Desion: Valve actuators shall conform to the AWWA C504 Standard and shall be
designed to hold the valve in any intermediate position between full open and full closed
without creeping or fluttering. Valve actuators shall be of the worm gear design.
Test Results: Valve actuator manufacturers shall provide results of tests performed on
actuators, in accordance with Sections 3.8.3 and 3.8.5.5 of the AWWA C504 Standard.'
Valve manufacturers shall submit maximum torque requirements at operating and design
conditions.
Position Indicator: Valve actuators shall be equipped with a closed and open indicator.
The indicator shall be raised, clearly showing the legends 'Open" and 'Closed" at the end
of a 90 degree arc with a pointer to show the disc position (Closed at 0 degrees and Open
at 90 degrees) and the arc graduated in increments of ten degrees.
Direction of Operation: Clockwise direction shall close the valve and counter-clockwise
direction shall open the valve. The valve actuator shall be located on the side of the valve,
suitable for vault service or above ground sauce'.
Capable of Submerged Operation: Unless othenNise specified, the valve body will be
buried and a manhole will be constructed over the actuator in accordance with Dallas
Water Ulili~es Standard detail drawing 414W~13. The actuator must be capable of being
submerged in groundwater and operated without causing damage.
Manual Actuators: Manual valve actuators shall be Ijmitorque, or an approved equal. All
manual actuators shall be equipped with a handwheel sized such that the required
operating torque of the actuator can be produced with a maximum rim pull on the
handwheel of 80 pounds in accordance with Section 3.8.5.2 of the AVWVA C504 ~tandard.
In addition, all handwheel shall have the 'Open" direction clearly marked with an arrow.
Electric Actuators; Electric valve actuators, where required, shall be Umitorque, or an
approved equal. The electdc actuator shall be designed for operalion with 208 Volt, 3
Phase, 60 Hertz power and shall have a NEMA 4 enclosure, pestdon indicator, 360 second
timing for opening, torque switches in series, manual override hand wheel, four 4 train
geared limit switches (16 total), reversing starter, and three (3) button two (2) light push
button control station.
7
VII.
PRODUCTION TESTS:
The manufacturer shall provide the DWUD Distribution Division with approved certified test
results or a statement regarding compliance with the following tests in accordance with
AVVVVA C504, Section 5.2.
Performance Test: Each valve with the actuator mounted directly on the valve shall be
shop operated by the valve manufacturer three times from the fully closed to the fully
opened position and the reverse under a no-flow condition, to demonstrate that the
complete assembly is workable.
Leakaae Test: Each valve shall be shop tested by the valve manufacturer for leaks with
the valve in the closed posffion. The test shall be conducted with the disc in a horizontal
plane. With the disc in the closed posilion, air pressure at 150 psig shall be supplied to the
lower face of the disc for the full test duration of no less than five (5) minutes. The upper
surface of the valve disc shall be visible and shall be covered with a pool of water at 0 psig
pressure. There shall be no indication of leakage past the valve disc (visible in the form of
bubbles in the water pool on top of the disc) during the test period. All valves shall be leak-
tight in both directions.
Hydrostatic Test: The manufacturer shall subject all valve bodies to an internal hydrostatic
pressure equivalent to two times the rated pressure of the valve. During the hydrostatic
test, there shall be no leakage through the metal, the end joints, or the shaft seal, nor shall
any part of the valve be permanently deformed. The lime duration of this hydrostatic test
shall be sufficient to allow visual examination for leakage and shall be at least 3 minutes
for valves 10 inch through 20 inch, and 10 minutes for valves 24 inch and larger.
METALLURGICAL TESTING
Independent Testln<3: Subsequent to meeting all of the other requirements of this
specification but prior to acceptance of the valve, the valve manufacturer may be required
to furnish metallurgical analyses conducted by a qualified independent testing laboratory
for verification of material compliance with all applicable ASTM designations.
Data Reauired: The specific analyses required shall be determined by the City of Dallas
on a case-by-case basis.
IX. NATIONAL SANITATION FOUNDATION (NSF) STANDARD 61
Compliance: All valves must have received verifiable Certification of Compliance with the
NSF 61 Standard.
ACCESSORIES
A. Bolts and Nuts: A full compliment of main flange heavy hex belts and nuts as specified in
Section II.F.(1) and (2) of this Specilicatlon shall be provided with each flanged valve.
Gaskets: All valves with flanged ends shall be provided with a full compliment of dbbed
ring gaskets as specified in Section II.G of this Specification.
XI.
PACKAGING
A. Nuts and Bolts: The main flange bolts and nuts shall be packaged separately and
securely fastened to the valve for shipping.
Gaskets: All flange gaskets shall be shipped inside the valve, sealed to protect the rubber
gasket material from contamination and damage.
.Valves;
(1)
All valves provided shall be protected during transit and storage to prevent
damage to the valves. The manufacturer shall ship each valve with full-face
flange protectors of 3/4" exterior grade plywood or pressboard securely fastened
over the flange faces to protect them during shipment. Valves larger than 36"
shall be bolted or othenNise fastened to skids to preclude damage in subsequent
handling. Small valves may be fully packaged at the manufacturer's option to
prevent damage.
Valves shall only be lifted by utilizing clevis devices through the valve flange, or by
forklift for those valves which are on pallets. In no case shall any valves be lifted
by the actuator or by the valve shaft.
XII.
VERIFICATION OF COMPLIANCE WITH SPECIFICATIONS
Documentation: Prior to any manufacturer's butterfly valve being approved for use by the
City of Dallas, the valve manufacturer shall deliver to the Dallas Water Utilities Department
Distribution Division Matedal Engineer at 4120 Scottsdale Drive, Dallas, Texas 75227 a
formal statement which either:
(1)
Verifies and affirms the compliance of that manufacturer's butterfly valve with all
the provisions of this Specification; OR
(2)
Specifically identifies each section of this Specification which is not met by that
manufacturer's butterfly valve, and gives suffident detailed information regarding
the nature of each non-compliance to allow the City of Dallas to determine if the
non-compliance is minor and can be waived, or if it is major and shall be
considered a cause for rejection.
........ END OF SPECIFICATION ......
9
'li
ATTENTION
THE STANDARD DUE TIME FOR BIDS HAS
CHANGED
BID S ARE DUE N O LATER THAN
10:00 A.M.
IN THE PURCHASING DEPARTMENT,
1500 .M.ARILLA ST, 3FS, DALLAS, TX.
75201.
NO EXCEPTIONS!l!
ALL BIDS WILL BE PUBLICLY OPENED AT
2:00 P.M.
SUnMTTTAT. DATA
Project= Coppell 2 Metering Station
Location= Dallas, Texas
Engineerz CH2M Hill
Contractor= Bar Constructors, Inc.
Product Type= Butterfly Valve
12"
nescr~ pt{ on
Flange Butterfly Valve w/HWGO
M&H 4500 AWW" C504 Butterfly Val ;s
· For Underground Applications
· Now. with M&H Butterfly Valves you gain new valve reliability.
· 4500-4"-24"
· NSF Approved
plus economy
The M&H Butterfly valve is rugged and dependable; it will
work easily any time you need it. Because oi this rugged-
ness and reliability--plus positive, 100% shuFolf--you
achieve a more efficient, trouble-free distribution system.
No More Damaged Stems. Since the M&H Butterfly Valve
does not "freeze" shut or stick, it is always readily operable.
Should inexperienced workmen attempt to overtighten it, the
tough 450 pounds torque rating of the operator at ends of
travel prolecls slem and operating parts against damage.
This Iorque rating is unparalleled in standard valves Ior this
application. When it is considered that conventional water-
main valves have torque limitations as low as 150 foot
pounds, the margin of safety provided by this exclusive M&H
design is an important factor in long, trouble-lree valve lile.
Bottle-Tight Seal. With the M&H Butterfly Valve, you get
positive 100% shutoff. Rubber vane-seat and stainless steel
valve-seat construction provides a permanent uninterrupted
360-degree bottle-tight closure.
Water Sealed Out. Underground operator and end cover
are permanently sealed against ground-water inliltration.
Working Parts Corrosion-Free. All critical bearing and
sealingsurlacesareslainlesssteel,.Teflon® orrubber--
assures easy and efficient valve operation, permanently.
Low Initial Cost. The M&H Butterfly Valve has standardized
components which offer you lowest initial cost and off-the-
shelf availability. Expensive accessories are not required. No
by-passes, special gearing, etc.
Easy Installation. The M&H Butterfly Valves are compact,
light-weight, easy to install. Installation costs are kept to
a minimum.
Maintenance-Free. Permanently lubricated--no packing
adjustment, no periodic exercising, no stem replacement of
the M&H Valve is required. The closing action of the vane
is self-cleaning and there are no pockets in which sediment
or sludge formations can deposit, resulting in longer
lifetime service.
· DuPont registered trade name.
Available in class 250
M&H 4500 ."'
I AWWA C504 Butterfly Valves
I 4500-4"-24"
For Underground Application
MECHANICAL JOINT END
Working Pressure:
4" through 12" sizes--200 psi
14" through 24" sizes-- 150 psi
Hydrostallc Test Pressure:
4" through 12" sizes--400 psi
14" through 24" sizes--300 psi
ENDS AVAILABLE
Mechanical Joinl
20" mechanical joint end
wilh underground operator
FLANGED END
Walef
~ Flanged
Flanged x MIJ
6". 8". 12"
16"
M&H 45~,o AWWA BUTTERFLY VAL~--,S C504
For In-Plant Applications
Engineered for long & trouble-free operation
Eliminates expensive and time-consuming shutdowns
Name your criteria for in-plant valve evaluation... performanc%
economy, maintenance, reliability, versatility. The M&H 4500
Butterfly Valve is Number One in every category.
This is a rugged valve, able to handle s. evere operating
conditions and asstare bottle-tight shut-off. It eliminates
many nagging, frustrating problems of other valves.
For in-plant applications, the M&H valve offers the many
advantages of the underground model -- ruggedness, shaft
strength, bottle-tight seal, corrosion-free critical parts, freedo
from excessive maintenance. In addition, you obtain...
Low Cost Installation. M&H Butterfly Valve arc compact,
lightweight, easy to install. Installation costs are kept to a
minimum.
Efficient Throttling. M&II Butterfly Va. lves provide a
highly effective method of throttling and control. The vane
ia held solidly, without chatter, in any desired control position.
Wide Selection of Operators and Pipe Connections.
The cylinder, crank, handwheel, square nut, electric molor
and handqever operators are available on all pipe-end
connections, in sizes four inches and larger. The hand-lever
model has several latched vane positions from full-open to
full-closed.
Interchangeable Paris anti Operators. For Style 4500
Butterfly Valve, all component parts are 100% interchangeable
between valves of the same size. If necessary operators
can be interchanged in the plant, shop or warehouse. For
example, if you should wish to change from a crank operator
to a cylinder operator, you loosen two bolts, slide the crank
operator from the drive shaft, replace with the cylinder
operator - tighten bolts in accordance with factory instruction
sheet. This exclusive interchangeability substantially reduces
inventories and related costs.
Choice of Valve Types. Wafer and Finngod-end
butterfly valves are ideal for in-plant applications.
Accessories. Floor stands, extension stems, chain wheels,
solonold valves, speed control valves, valve' positionera,
limit switches, etc., electric motor operators are available.
M&H AWWA C,,04 Butterfly Valve,,,
[] Approximate Dimensions in Inches
I 4500-4"-24"
HOW TO ORDER
In ordering, please give the following information:
1. Quantity and Style.
2. Size.
3. End Connection.
4. Type of operatoe
5. Open" Right" or" Left.'.' (Underground valve only)
6. Specify line content other than water.
7. Specify coating, if desired.
Details on Meier Op~ators on request.
All Types
Mechanical
Jolnl
VALVE SIZE 4 6 8
A ~. Valve to OperaIo~ From 103/4 113/,, 13
B ct Valve to End Cover 5s,~ 6% 7~
U · Hex. Drive Shall Size.
Across Flats/Round
SIS Shalls · s~ · 1 ' 1 t,,~
J Laying Length 2~,/.a 2~'/k 3
T OvetallLonglh(WIOAcc) 7~ 7~ 8
V I.O. of Hub ( + .07.-.03) 4.90 7.00 9.15
C B011 Circle Diemeier 7~ 9~ 113A
10 12 14 16 18 20 24
15~ 17½ 20'~ 22% 24 25'/~ 30
93/4 11~/~ 13% 15 16 17~ 20t~
'l'/z '1~ 2 2 2% 2% 3%
4V,, 4% 5% 5% 6% 6% 7~
9% 9:./4 12% 12% 13% 13',,~ 14,~
I 1.20 13.30 + .06 15.44 17.54 19.64 21.74 25.94
0
-.7
14 16V,, 18~/~ 2l 231A 25~ 30
Waler
Flanged
Under-
Ground
Operator
Crank
Operalot
Cylinder
Operalot
Laying Length
BoltCirdeDiameler 7~
Layin0 Length 5 5 6
Flange Thickness tsAe I I
BollCircleOiameter 7t,,~ 9~ 113/~
CL Valve to Top el Operato~ 8 8 9
ct Valve to Bollom of Operatoe' 3% 3% 4
Number el Turns Io Close ! 61/2 16~/~ 24
cr. Valve to Top ol Operator 10 10 11
c¢. Valve to Bottom of Operalo, 3% 3,.% 4
Crank Lenglh 7 7 7
Numbe'olTurnstoCIose 161/~ 16t~ 24
~.Valvet0Top010peralo~
~. valve to Bottom of Operato~'
Cylinder Size (Bore x Stroke) 5x23/~ 5x2% 5x4
3% 3% 4~
14% 17
8 8 8
!~s
14% 17 183A
10% 10% 12~
5% 5%
36 36 48
12~ 123/e 15~
5% 5% 8%
7 7 tO
36 36 48
18~4 18Y4 25
123/4 123/4 18
6x6 6x6 8x8
21% 223A 25 --
8 8 8 8
l%a 1%e !:%m
21% 22% 25 29~
12~ 14~ 14~
8% IOs~ 10% 15~
49 72 72 90
15~ 173/4 173A 21~
8s/, 10s/k, 10si 15~
~O tO 10 ~4½
48 72 72 90
25 31 31 36
18 24 24 12
8x8 8x12 8x12 fox15
Lever
G LeverLength 11 I1
Operalor
M&H 4500 A A"VA C504 ButterfI' Valves
[] Comparison of Head Loss
[] Pipe with and without Butterfly Valves at Different Velocities
"1 would like to install butterfly valves in my distribution syslem, but I
don'l see how you can get enough water past that vane--won'l this
mean that I'll need larger pipes or bigger pumps il I use your valve?"
Flow,
The above question is a logical one, as the vane in the waterway of the GPM
butterfly valve appears to be a real obstacle to the Ilow ol water in II'~e
line. Forlunalely, this is not the case. ' o
50
We have run lests to delermine the head loss wilh the valve wide-open ~oo
in various sizes ol the M&H butterfly valves. These tests have shown 200
300
that under normal flowing velocities, the added pressure drop
caused by the butterfly valve is so slight as to be
immeasurable. o
For example-- 300
600
· A 12" line of standard cast iron pipe, 1,000 leer long has a Hazen- 900
Willtams coefficient "C" = 100. One end of the pipeline is ~.200
connected to a reservoir. Head is equivalent to 80 psi at the
0
reservoir. I so
II a pressure gauge is installed at the other end of the 1,000-feel, it 450
will now show 78.20 psi at a flow ol 1,000 gpm, indicating a drop 900
1,200
ol 1.80 psi due to the pipe. !.8oo
Ira 12" M&H450butterfiyvalveisnowculinlolhe 1,000-lootline, 2.400
with all other conditions unchanged, the same gauge will now
o
show 78.16 psi, including a drop ol 1.84 psi due to Ihe pipe and 600
valve logether, or 0.04 drop due to the valve alone, (Ioo slight to 1.200
1.800
register) or equivalent to Ihe addition o125 leel of pipe to the 3.2o0
1,000-ft. line. 4.500
Ii a gale valve or full-area ball valve had been installed instead,
o
the gauge would indicate a reading somewhere between ?8.20 1.ooo
and 78.16 psi. 2.000
3.500
The above exarnple is based on normal mild flow in a distribution line, 5.o00
with one valve installed at every two blocks (with no other fittings such 7.500
as elbows, laterals, tees and 'crosses). If, say, twice as many butterfly o
valves were installed in the same line, the gauge would show 0.04 psi 1.500
less--or 78,12 psi. These differences cannot even be delected on 3.000
5.000
ordinary gauges. 7.ooo
10.00o
At higher line velocities, the butterfly valve has increased loss, but
always in the same ratio as the pipeline, elbows and other fittings. o
Again, the increased head loss due to use of butterfly valves in a 2.000
4,000
normal distribution system is so slight Ihal Ihey can be installed with no 6,000
more concern than is given to elbows, gate valves and other fillings. In 6.000
fact, only when a very short line is under consideration (where the
"Equivalent Feet ol Pipe" of Ihe butterfly valve represents a significanl 0
portion ol the total length) is head loss in a wide open butterfly valve a 2.000
lactor. The insignificant head loss under normal circumstances is far 4.00o
8,000
outweighed by the operating benefits ol butterfly valves: 12.000
16,000
1 --Ease ol operation, in all sizes, even under line break
condilions (By pass or auxiliary gear never required). 0
2--Bottle-tight shutoil. 2,500
4,000
3--No maintenance--no exercising. 8.000
4--Low cosl. 16,ooo
20.000
5--Throttling ability wilhout need ol expensive modifications.
In the table to Right, dala has been tabulated Io show pressures at Ihe o
end of a section of pipeline without any valve, and with the M&H 450 4.500
9.000
butterlly valves installed. Compare these values for various sizes and ~2.o00
16,000
flows. Remember--if gate valves are considered, pressure at end ol 20.000
line section will be between the values shown, and insignlicantly
higher than it would be with butterfly valves.
Comparison Chart (1000-feet of CIP) C = 100
Pressure al I Pressure at End ol Line SecUon,
Reservoir, PSI
PSI No Valve I M&H BullerllyValve
4" CAST IRON PIPE
80 80 80
80 7854 78.5l
80 74 67 74.6
80 60.8 60.5
80 39.4 38.7
RO 10.6 9.5
6" CAS[ IRON PIPE
80 80 80
80 ?926 79.25
80 74 4 743
80 59 6 59.2
80 37 0 36 !
80 6.7 52
8" CASI' IRON PIPE
80 80 80
80 79 62 79 61
80 77 OG 77.00
80 6935 69.13
80 61 9 61.5
80 41.6 408
80 14 5 13.2
10" CAST IRON PIPE
80 80 80
80 78.30 78.26
80 73 9 73.75
80 67.0 66.7
80 42.5 416
80 94 7 6
12~ CAST IRON PIPE
80 80 80
80 7820 78.16
80 73.5 73.35
80 617 61.2
80 44 7 43.8
BO 5.0 3.2
14 ~ CAST IRON PIPE
80 80 80
80 78 20 78.14
80 73.50 73.28
80 62.3 61.7
80 489 47.8
80 19.8 17.7
16" CAST IRON PIPE
80 80 80
80 78.40 78.34
80 74.20 74.00
80 67.8 67,4
80 59.2 58,4
80 36.2 346
18" CAST IRON PiPE
80 80 80
80 79.10 7905
80 76.70 ?654
80 58.3 67.7
80 55.2 54.0
80 37.7 35.6
20~ CAST IRON PIPE
80 79.18 79.14
80 78 06 77.96
80 73.0 72,65
80 54 7 53.4
80 41.8 39.9
24" I.D. PIPE
89 80 80
80 79.02 78.96
80 76.45 76.24
80 73.90 13,54
80 69.5 58.9
80 54.3 534
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