HomeMy WebLinkAbout129-30.1A DUCTILE IRON PIPE (PARTIAL REPLACEMEN-T SECTION)
PARAGRAPH 1. REPLACE -CLASS 53 and CLASS .50" WITH 'CLASS 52"
9-30.3A GATE VALVES (PARTIAL PEF-LAC04ENT SECTION)
REPLACE PARAGRAPH 1 WITH:
VALVES SMALL BE DESIGNED FOR A MINIMUM WATER OPERATING PRESS-14E OF 200 PSI. GATE VALVES SHALL
BE IOWA LIST 14, MUELLER COMPANY NO. A2380, PACIFIC STATES, U.S. METROPCI-ITAN, KENNEDY, Cr, M&H.
APPROVAL OF VALVES OTHER THAN MODELS SPECIFIED SHALL BE OBTAINED PRIOR TO BID OPENING.
ALL GATE VALVE�S LESS THAN 12" IN DIAMETER S�ALL INCLUDE AN 8" x 24- CAST IRON GATE VALVE BOX
AND EXTENSIONS, AS REQUIRED. ALL 12- DI44ETER AND LARGER GATE VALVES SHALL BE INSTALLED IN A
VAULT. SiE:E WATER STANDARD DETAIL FOR 12- GATE VALVE ASSEMBLY VAULT AND I' BYPASS INSTALLATION.
9-30.3E VALVE MARKER POSTS (PARTIAL RE]PLACEMENT SECTION)
REPLACE PARAGRAPH 1 WITH:
VALVE KOJO(ER POSTS SKqLL BE INSTALLED AT THE DISCRETION OF THE CITY IN THOSE UNPAVED AREAS WHERE
THE TOP OF THE VALVE BOX COULD BE COVERED BY WEEDS, 9*U3S, BAFK OR OTHER MAT&�IALS. THE VALVE
MAIIKERS SHALL BE FABRICATED AND INSTALLED IN CONFORMANCE WITH THE STANDARD DRAWINGS.
9-30.5 HYDRANTS (REJ21-ACEMENT SECTION)
FIRE HYDRANTS SHALL BE IOWA, OR APPROVED EQUAL. APPROVAL MUST BE OBTAINED PRIOR TO 810 OPENING.
9-3O.5A END CONNECTIONS (REPLACEMENT SECTION)
HYDRANTS SHALL BE CONSTRUCTED WITH MECHANICAL 30IN7 CONNECTION Ltd-ESS OTHERWISE SPECIFIED IN BID
PROPOSAL DESCRIPTION.
9-30.5B HYDRANT DIMENSIONS (PARTIAL P—El�— ';ECTION)
REPLACE PARAGRAPH 1 WITH:
FIRE HYDRANTS SHALL BE COREY TYPE (OPENING WITH THE PRESSURE) CONFORMING TO AWWA C-504-80 WITH
A 6 INCH INLET AND A M.V.O. OF 5 INCHES, TWO 2 1/2 INCH HOSE NOZZI F WITH NATIONAL STANDARD 7
1/2 THREADS PER INCH AND ONE 4 INCH PUMPER NOZZLE WITH THE NEW SEATTLE PATTERN 6 THREADS PER
INCH, 60 DEGREES V. THREADS, O.D. THREAD 4.875 AND ROOT DIAMETER 4.6263, 1-1/4- PENTAGON
OPERATING NUT OPENED BY TURNING COUNTER CLOCKWISE (LEFT).
Supplemntal Specificati�s
(Re� 05/01/86) Page 60
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