HomeMy WebLinkAboutCD-410 Manhole Riser Ring Type I
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PLAN
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I
40-1/4"
38-1/4" DIA.
1/2" SET SCREW
SEE PLAN VIEW)
36" DIA.
37-1 2" MAX. DIA.
(TOLERANCE=-1/16")
SECTION A-A
NOTES:
1 /2 THREADED HOLES WITH 1" LONG
HEADLESS SET SCREWS AT 1/3 POINTS
ON RING. TOTAL OF 3 REQUIRED.
CAST IRON RISER RING
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CAST IRON RISER RING
1. ALL CONTACT AND BEARING SURFACES OF RISER RING SHALL BE MACHINED
FLA T AND TRUE.
2. THE MANHOLE RISER RING SHALL BE CAST IRON CONFORMING TO ASTM
SERIAL DESIGNATION A-48, CLASS 30.
3. TOLERANCES FOR DIMENSIONS SHOWN SHALL BE OF AN ORDER EQUIVALENT TO
THE STANDARD FOR THE INDUSTRY UNLESS OTHERWISE INDICATED.
MANHOLE RISER RING TYPE I
SCALE: NOT TO SCALE
DATE: SEPTEMBER 13, 2006
DRAWN BY: LDH
V:\CAD\NEW STANDARDS
APPROVED: .. ~
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PUBLIC WORKS DIRECTOR CD-41 0