ST9302-SP 981007 (2)FAX (214) 35Z-0201 TELEPHONE (214) 35~,-6S~1
ED BELL CON..~TRUCTIC)N COMPANY
POST OFFICE BOX 540787 10605 HARRY HINES
DALLAS. TEXAS 75354-0787 DALLAS, TEXAS 75220
TO:
l(imle¥-Hom and Associates, Inc.
801 Cherry S~:eet, Suite 1100
Fort WoFth, Texas 76102
LETTER OF TRANSMITTAL
3ate: October 7, 1998 I lob #: 939
Attn: Michael G. DeMotte
Re: Sandy Lake Road Reconstruction
City of Coppell, Texas
THE FOLLOWING ITEMS ARE ATTACHED:
Copies Spec Section Submittal No." Description
6 NCTCOG 2 Double Disc Gate Valves (30" gate valve)
Item 2.13.1
THESE ARE BEING TKANSMITTED:
Information for Record
O&M Data
Information for Engineer's Approval
Return 2 Copies
.CERTIFICATION:
This information has been reviewed and determined to be in compliance with the contract
documents including plans and specifications as modified by addenda, change orders, and field
orders. Any exception~ to the contract documents are noted below.
Robert D. Weber
DOUBLE DISC
GATE VALVES
KENNEDY AWWA DBL. DISC PARALLEL
SEAT IBBM GATE VALVES
KENNEDY VALVE
KENNEDY AWWA Dbl. Disc Parallel Seat
IBBM Gate Valves Meet or Exceed
the Requirements of AWWA C500
Size Range 2"-48"
Water working Hydrostatic
pre_~=-re psi Test psi
2"-12" 200 400
14"-48" 150 300
Available in either, NRS, OS&Y, or Sliding Stem
Available End Connections & Size Range
2"-48"
Fig.
M.J.
MJ Cutting End
Push-on Ends for C.I. Pipe & C900 PVC
Fig. & M.J.
Fig. & Push-on for C.I.
Push-on Ends for PVC
Figure No.
C561/F-5070
2"-36" C571/F-5065
4'-12" C576/F-5067
4"-12" C901/F-5080
4"-36" C572JF-5066
4"-12" C902/F-5080
2"-10" C597/F-5085
Accessories
Floorstands (NRS & R.S.)
Limit Switches
Open Gearing
Needle & Slot (Navy) Indicators
Electric Motors
2" Sq. Operating Nuts
Chainwheels
"T" Handles
Stem Guides
Indicator Posts
By-pass Valves
Enclosed Gearing (Grease Case)
Barrel Indicators
Tracks, Rollers, & Scrapers
for Valves 14" or larger
Handwheels
Extension Stems
Floor Boxes
Center Slides for Valves installed horizontal position in vertical line
Installed Horizontal position in Horizontal line
*Note: Call Factory For Special Applications
Kenny. dy Valve/Double Disc Gate Valves
~Y VALVE DOUBLE DISC GATE VALVES
IRON BODY, BRONZE MOUNTED, PARALLEL SEAT
KENNEDY VALVE
Description and Advantages
Kennedy AWWA Gate Valves are designed primarily for
flow control of water in underground pipe lines. They equal
or exceed the requirements established by standards of the
American Water Works Association and conform to Federal
Specifications WW-V-58B, Type II, Class I.
Kennedy AW~NA Gate Valves are specifically designed for
heavy pressure service. Neck, flanges, and bell are made
extra heavy to withstand pipe strain and possible shifting.
Body, cover, gates, and stem are built for extra strength,
with clean and simple internal construction, to assure long
service and Iow maintenance.
Operation of the Valve
Turning the stem releases the wedging pressure on the
gates allowing them to move away from their seats b~fore
starting upward travel. Further turning of the stem rinses
the gates into the fully opened position.
When closing the valve, the gates move freely downward
without friction, to a position opposite their seats.
As the gates approach the bottom of the valve, the iron
hooks come into contact with stops which prevent further
downward movement of the hooks. The bronze wedges
riding on these hooks spread the gates apart and force
them against their seats.
Construction
Body: Cast iron, bronze mounted. Sturdy proportions
provide protection against damage.
Stem: Manganese bronze of high tensile and torsional
strength, with accurate, pedectly machined threads. Ampte
diameters assure smooth valve movements.
Stem Nut: Solid bronze. Independent of hooks, gates, and
wedges. Stem or stem nut will not bind or spring out of line,
as can happen when stem nut is attached to wedges.
Wedges: Independent, solid bronze, 2"-3" valves have
integral hook and wedge. 4"-8" have independent solid
bronze wedges placed loosely in iron hooks, and are free to
adjust to varying positions of the gates. In 10" and larger
valves, each wedge has one long and one short surface.
The bottom of each wedge forms a rocker bearing on the
iron hooks, letting wedges adjust to varying positions of the
gates in closing. The long side is used in closing the valve
and the short side in opening it.
Low Torque Trust Bearing: Valves 4"-12" are fitted below the
stem collar with an exclusive Low Torque Thrust Bearing
which provides high load capacity and Iow friction. This
bearing reduces operating torque up to 50% yet seals
perfectly for repacking under pressure.
Gates and Gate Rings: Gates 3" and smaller are bronze.
Gates 4" and larger are high strength cast iron with bronze
gate rings rolled into machined and dovetailed grooves
under pressure to make gate and ring one inseparable unit.
After fitting, gate rings are accurately machined.
Case Rings, Bronze case rings are screwed into place and
machined. They can be removed and replaced if necessary.
Packing: O-Ring packing is standard on all non-rising stem
gate valves. Rising stem and geared valves are furnished
with conventional packing.
Operating Nut and Handwheeh All valves except flanged
valves and outside screw and yoke valves are supplied with
2" square operating nuts of high strength cast iron unless
otherwise specified. Flanged valves and outside screw and
yoke valves are supplied with handwheels of high strength
cast iron unless otherwise specified. Direction of opening is
indicated by arrow cast on operating nut skirt or on the rim
of the handwheel.
Yoke: Yokes for outside screw and yoke valves are of
rugged cast iron. Careful machining assures accurate stem
alignment.
Accessories: Valves may be fitted with any large hum?er of
accessories: cylinders, electric motor operators, gearing,
by-passes, etc. " d
Rollers, Tracks and Scrapers: Recommended for 14 an
larger diameter valves carry weight of the gates for valves
installed in a horizontal line in a vertical line.
NOTE: All valves open to the left (counter clockwise) unless
otherwise specified.
E-15
KENNEDY GATE VALVES, ROLLERS,
TRACKS AND SCRAPERS ° SLIDES
KENNEDY VALVE
For 14-inch and Larger Diameter Gate Valves
Installed Horizontally
Slides
oes " and larger installed in vertical pipe lines with t~/
should be fitted with slides to assis~t..ff~
fastened~ug, s ~ast inte, g~r_a~y
~f the tracks on which the g~,~or.!heir entire travel In
~S car~.,ff~-gates C~o.w~tb~_tra__c~..s to a point
~ wedging m~ operates
Slid~cks and shoes are bronze.
Rollers, Tracks and Scrapers
Valves 14" and larger installed in a horizontal pipe line with
their stems horizontal should be equipped with rollers, tracks
and scrapers, as illustrated. The rollers assist the travel of the
gate assembly along tracks set into the valve body, retaining
it in alignment, and promoting ease of operation, not other-
wise possible. Scrapers are provided ahead of the rollers to
clear the track of obstruction or foreign matter.
When required, rollers, tracks and scrapers are bronze.
Valve installed
horizontally in a
vertical pipe line
Kennedy Valve/Double Disc Gate Valves
£-12
14"-36" FLANGE END W/BYPASS BEVEL
GEAR-ROLLER-TRACKS & SCRAPERS
C561/F-5070 GATE VALVE
KENNEDY VALVE
14
153,
23
35~
19~
23~
16 18 20
17 19 ] 20
23 24 / 24
23V2 25 / 27~
32V, 353/6 / 3~
39% 42¥6 [ 465
20V; 22'/~ / 2~
1;/8 2% ~ 2~t
25:~/, 27~/,~ ~ 32~
MA'I~RIAL
E-Il
Konnedv Vah'e/Double Disc Gate Vah'es