ST9401WA-SP 960521tit'( 4b (
MAY 21 '96 03 :13PM WIER & ASSOCIATES
WIER & ASSCCIATIM INC.
EN G IN EERI N G SURVEYING LAND PLANNING
43CO 99LTWAY P LACE. SUrM 130 • AALMTON TEW 7W I&=7
NIETAO 81714$'7 -7700 • FAX 8111497 -7793
P.1
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TOTAL WXU It OF PAGN:
ml uL "a =No smarty
DATE:
IF THIS TRANSMISSION 15 tNCOMPLM OR UNREADABLE
PLEASE CALL.SENDER AS SOON AS PASSIBLE
Ao0l ttoNAL M686 ACE
Q OM ~L I" FOLLOW VIA: ❑ ORIGINAL WILL FOLLOW
Regular Mail q
awmight WB�A #:
Delivery
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1 '96 0 I 3 UC � 13PM WIER & ASS OCIA
W. v i TEps TEL; (214)423 -45'T3
1 rCl" "70 so a ai r. ✓. S
1
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UNM SIAM PIPE AM FOUNDRY OOMPAW
PACSO U TMNM
IOC 4=,1561
DALIA'i SALE'= OW"
#374P. 211
DATE: DS ~ Q % '119
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(214) 423 -4573
(214) 423 -3881 or (800) 568 -0099
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MAY 21 '96 03 :13PM WIER & ASSOCIATES P.3
• Aiieridum No. 1
,IWAwy 26, 19ta6
i. to il. ,
1. Add Item 1.23 as follows:
Ift 1.23 16 Gate Val es: 16" Gate Valves shall consist of resilient seated
.���► troseal 250 manufactured by U.S. Pipe and Foundry Company, or equal,
conforming to all applicable requirements of AWWA C509. The valves shall be
installed as per city standard detail for vertical valves with block, box, stem
extension (where required by depth) and concrete pad.
2. Add Item 1.24 as follows:
IMm 1.24 Sterilix ton and Flushina Proc Existing 12" W&Wr Line A
portion of t e existing 1 w2 ater line located on the east side of Denton Tap
Road at the S.H. 121 Bypass shall be separated from the existing water system
and connected to the proposed water line. Prior to connecting the water lines,
the existing water line shall be flushed, sterilized, and bacteria tested. The
flushing and sterilization procedures shall be as shown on the exhibit following
this item and the instructions below:
At Point "A" install 2" temporary flush valve at end of 12" line and
temporadly plug. Install 2" flush valve at and of proposed 12" line
and temporarily plug line.
At Point "B" depressurize line and sever existing 12" wafer line.
Install temporary plugs on ends of both lines. Install 2" flush
valves at ends of lines.
At Point "Cu close existing valve and leave valve in closed
position.
Flush and sterilize separated 12" waterline using temporary hose
and flush valves at Point "A" for water source. Release water at
Point "8" and fire hydrant at Point "C ". Coordinate flushing
ope►ation with City Inspection staff.
After lines are flushed sterilize lines and provide bacterfe tests to
confirm line is sterilized.
1. Replace Sheet 2 dated January 3, 1996 with plan sheet attached where
alignment of pipeline has been altered at North end of alignment.
2. Sheet 4 Station 7 +50 W -1: Delete 113" vertical valve with bypass and provide
16" resilient seated gate valve with box, lid, stem extension and concrete pad.
2. Sheet 5 Station 16+10 W -1: Delete 16" vertical valve with bypass and vault and
provide 16" resilient seated gate valve with box, lid, stem extensions, blocking
and concrete pad.
2of3
WA 084 -093
MAY 21 1 96 03 :14PM WIER & ASS IATESgLLAS
1.
* f V ,
TEL NO-'C214)423-,4573 3�74P 4�
0
!!titrKiate your interest in our
*W of WIROSFALO 250 Resii
d Gate Valves. And w&ze sure
' them Wdii b est vaPm
COOK d
x Seated Gate Valves are
torpid acceptae thxoT s ut
-saw arydr industry.
Sro wth is due to:
• 1s dWky to seAl tightly with no
+ � - - ce that the valve will operate
"wft air kmg - of in city
"N sods +l and con -
srrnc for R/S val outlined in
,l V MlK C3W, are identical to the 0500
� double disc to valves in
ai coma Aw axem, such as boq bon -
net, wew� seWO, and number of-turns to
pwaft =71* nly di rences between
iri occur in the way the
war sub between the gate and the
b" 2 S Valvlec from US.
PW mwwdt w requirerne ws of the
srndod in a number of O nifi
C� aftm
+ �A& • 2150 valves are rated
iW ,�� re ar
� apexa presand
• '11" b" , bobrw and age are
die ftM instead of iron
ab
o 250 Valves have been
%now in exceac of 1004 cycles of
operation at 250 psi differential pres-
sure at dosing, without damage to
any components, including the epoxy
coa `
• ATMSEALP 250 valves are coated
with PERMAFUSEO Epoxy coating on
all i,nterxial and external surfaces.
• 250 Valves 4 " -16"
can be oared meeting the special
requirements of Un Labo-
ratories, Lac. or Factory Mutual
Research Corporation,
The NIMOSEALO 250 R/S Valves
represent the stag -of- the -art from the
leaders = ing gnok techgy. 'We 3 ntm
Y to n and size tihem ups A.11 the
way up to 16 ".'Then U7 a camparYSOn
to ary comppm R/S valve. V* think
you'll find there just isdt arty.
lbr khm are fiming at US Pipe
0
Ill &1 ' 03:14PM G IER & RSSOCIA1 1 S5LLAs
.—"._:.''.• TEL NO'-C214)423-4573
J ~ i11L2 � 16 M
** � t �aiv�
1rLF11 S l R/S Wes
Introduction ..................
Z
Teatur and Beneifts ...........
4
Available Styles of MFM
250 Valves ...................
7
operation and -Use ............. 8
Service Applications ............
9
magi miamr, Repair, and Storage
.. IO
Instructions for Ordering
and.lnspeetion ...............
11
Charts .. .... .....
Palls List
14
...................
Enclosed Beveled Gear Boxes .....
16
References..................
17
X
#374P;5�
@ US ripe A ftwdey Ca IM
Awd iff"Opsi
prownres
irk imn METROSEW 250 RedUent
i,wgd Caw valve represents a combinadon
of Ibm of the art dsdp and maraufacxu
Md 7 - s plus eucludve U.S oe
. Pipe panted-
tw, Inforgsdve tests, made under hoc pttP
sure and velocity care itiMU deznorstmte that
METROSF.W 250 MalVes WHI operate through
thousands of cyclw at 250 psi pressure with
no --- a and virtually no wear to
of Ye indu&ng the PERMAF[]�SE
bpa�y coating in the body and rubber coating
om the eta Ynszde and out, IviR�SEAx. 250
vafves are + gyred for ease of operation
e
and trouble-fim savice-
NwRan
through 16 - inch
bMMO 250 Valves Me made in sizes
3 -uv.h thro 16 - inCh. 7%W are designed,
and tested to meet ov exceed all
the applicable requftimeM of AWWA C509
(A WWA &andard for ReShent Seated Gate
Valves for Water and Sewerage Wm),- and
Av WA 0500 (AyVWA Stands for Gate
C.EiD /CAM RchI70109Y
The MEIROSEAU 250 Valve was dewIOPed
with the use of CAD /CAM technoloJOY { m
pcater Aided Dedp --- Computer Ai ded manu
factum). The complex cuzved s surfaces
of the valve body and wbber coated gate were
designed on a computer. These simuDded
2
modW its were mated on the computer
to asom un ifonn compression for the bulb
sealing surfaces of the date I'he three
i coordinates of these computer
w+ere pprr a � g�rammed into an NC
Contwlnd machining center to
machine the production equip -
" the valve bodies and gates.
All bOTDO&EW 250 Valves undergo two
� pr oof zem before shipment from
'Ihe fiM is a 500 with the
S a and with both end jOj sealed
}. ThU b* proves the body/
•W and stein 0-rft seals, in addition
t� PMA4 the suer4oh of the ductile iron
boiy nufl3onnet. in the second test, 250 psi
P�r�e is imposed on each side of the closed
P wkh no pressure on the opposite side. No
is allowed, This test proves the sealing
of the rte for 250 psi service. During
curse of these tom, the valve is cycled
hm A* open to fully closed to assure that it
PmPerlY
It infoarmation about the materials and
"A" with res&m seated g`o
=*m be found in the AWWA 0509
3
MAY 21 1 96 03:17PM WIER & ASSOCIATESgEJ-gg TEL N0: «14)423 -4573
1 10_M01&
#374P.86
41
DucWe Iron
i++ou 8rtdy asd bouires
The N&MO5F.ALO 250 valve body, bonnet
ancigate I 3 are 811 ductia axon •
aLt� broxme) sues Xd ". ��
tresses cmdo xT1 to thos Dowd for Smy imn
in ihe and are redu
A �� ��,
.A, duct5e iron valve is a much swrW
valve, more resistant to danur fom a
and irnprope r installation. The use of &=&
iron allows for a lr pressure rating which
gives a greater saifrty f wior ova normal oper-
ating pressures.
ft tented Guid a And S tem Sear
*E wAl b oth
� T 2
U. �� + W anted of &
M 1 iKJa7L'rAU 50 YW m-
Gate Guide Inserts
( us. Patent 4,532,957)
T'hrerrnoplasdc g�tic guide inserts are bdwd
into the guide slots of the gate buy engwe
the PERMAFUSE° E Corned ide
imWe the valve ide
system accomplishes two i�m�portant .
First, the, , is kept in pt+vper �
v�vith the body so tbat the rubber
faces are evertl whe is
closed. The valve can be operated usin
siderabl less torque than with conventional
gate valves.
Second, the b1►MVDSMG 250 Valve is able
to seal mpeawdiy at fiA fivw and 250 'mat
law torque and zero 10daye --over a t�ouaTM�sd
qcIes urtth no daWA&4 MV to alter' The
t =the int Fab epoa y coati , or
wpodaNm And with no
wear dwWs no chance for corramon.
Cartridge Stem Seal
(US. patent 3,912,221)
The seal between the stem and the bonnet is
com posed of a dx=oplxstic caruWi ge incor-
por ating - ' 'The"cm&rm to the
meats ction 4.8 Stem Seaitng of
,Ai� C509- S7.7he in the Carts ye
seal can be replaced while valve is uade�r
p ressure and while in either the fury open or
My dosed position.
1
4
4
21�± 96 ..03 :17PM. WIER &. ASSOC IATESX LAS
0
ID
0
wAW tale Um f ictlon on the a -rings s
dw Vd" wy to a through didu-
elate without dame or lea
N* tit and outside surfaces of the
b * ate bonnet am -- 'ccbed with ft won
ir..ir� r v SE r:paac r havaig eacep-
ti>rl arralioorx axed corx%JMIA'L a MXtstaw
eta ration of METROSEAL" M
�1r oMrr 2000 tutee% under fall
wlil a Z =mr,b n�g, stom no daizxag�e to
tlr vow coatixtg.
aimb er 9teurtdard 1fst
7iw PwwAmme coo ' hs been
tad in acranianc� MrW Sundard
C?C ctf Epoxy for Val "an
-:mod meets or ewee&all test require
sue, i�ducls� the foliowls�
AM irt yulnaaaent
AM MW E COahing is £Orrilulated
6= w1wL � med acceptalale in the
%W and document
'AMR 21 ai the ons an Ibod
Section 1757 entitled fiahm s
Coeur W
art art m q— n t
��E° E�aaty cat WithStauLdS
awwt imm et m e=m of 7 0 m -l$6 force
ift tD convex and concave g0indxical sub
f a 4-inch x 6-inch test coupm when
*r d iu accordance with the ASM D2794
to it ramtance of organic coatings to the
"Nftm of Rapid D ef arfimu 3 hupact;r
�irayw� TL�t�sgei:,emes�t
LT • =%
rT miw , w-
a a 5 00 hours of iinnier-110 ! in
roc Than L*Wd C.oadugs
1tApC1S9° Epoxy Coating is tou9mr, more
Ammm mutant, and more durdbTe than
at painted on liquid epaQda Tie
are ix�runt to the critical parts of
TEL N0: (.214)423 -4573 #374p-
Im
SII�OfQI�
Mesa
am Cartr *0 sign seat!
MAY 21 '96 03 18PM WIER & ASSOCIATE �LLAS
VIM I -rj. OW AT
t* VIM! `N]'!ilre lorVr We and more depend-
SW VWK OpWation is es=tW. This i8
c*r aftebw if the vWIve is expected to be
ire AK kft periods.
M&rkc-M,Aeted Gate:
%*Wk iecaQsuXaoe1
M area = of the sad ductile irong�
*e sum awe encapsulated in
zwiies y bonded to the g ift No bare
nsW is am Bot the rubber and the
at CSW (3 are �bronze*
l� i~ricti Seal"
A dWm result of Co Aided , the
rilrsr box at dwe pie and the are seal -
Ple LnW u on both the upsUre m
gird sides of the �� the -
for��t�e AM Aft of the raM are
art a�cwi by the ' n of the &" The
Madmi by i� t p 1tda davila b and
txrntblo-free service E wa
AMC ow o peration , under flow C7 i wkhMps1 on the to at dow*
*A rr� slsaws no evidence a1damage or
»
mpdhwpd
AM OM etihe 4 250 VW*
s the 16 -its an rated for 250
IV nmm Other 16 -inch AV gate
wig kod for only 150 psi apeta d%
PMW"a
to a Butterfly val
*011f td eaise o; 20 VWve ideal
ass to a 16 -inch butteft valve`
yi -inch . W-AL 250 Ww can
ha waftp wd at 290 psi by one max„
use a - pw valve is not necew�try. And
ram ift low apnea ' ,torques, spur is
not nr fox v�calr ono valves
TI* Winch AWROSLUO 250 Valve is
*AM* for throttling se:vice,
TEL N0: C214)423 -45'73 #374p71O
Sixteen inch UMiROSEAL' 25 Valves are
defi to be buried urjdergmmd and
amd wibh a 2" square valve wrench thrroy i
a valve box. It is not necenary for them to
be installed in a vault for aCCewftty since
Austn ent or maWtPna-1ce requfring dMw
sembl t is not required.
Minh the gate of the MEMERAO 250
Valve in the pDddon there is a clear
waterway wh ch permits turns
not possible in lines utilir3ng y valves,
Horizontal Service - -Bevel Gear
Operator
Shallow depth of or other conditUms of
service may require sat the valve be urtalled.
in the horizontal ' ' In this case,, the
valve will be with a nut-operated 2:l
bevel gear designed for buried service for
operation through a valve box.
The bevel gear is also suitable for use when
the valve is inMed abom ground in acposed
locations, in various poidd6ns, for handwheel
or chain wheel operations in both NRS and
OS&'Y styles.
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6 BIPOMMOU MITiMMMMEL
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