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Chicago Overview
Municipal Code of Chicago
MUNICIPAL CODE OF CHICAGO
TITLE 1 GENERAL PROVISIONS
TITLE 2 CITY GOVERNMENT AND ADMINISTRATION
TITLE 3 REVENUE AND FINANCE
TITLE 4 BUSINESSES, OCCUPATIONS AND CONSUMER PROTECTION
TITLE 5 HOUSING AND ECONOMIC DEVELOPMENT
TITLE 6 HUMAN RIGHTS*
TITLE 7 HEALTH AND SAFETY
TITLE 8 OFFENSES AFFECTING PUBLIC PEACE, MORALS AND WELFARE
TITLE 9 VEHICLES, TRAFFIC AND RAIL TRANSPORTATION
TITLE 10 STREETS, PUBLIC WAYS, PARKS, AIRPORTS AND HARBORS
TITLE 11 UTILITIES AND ENVIRONMENTAL PROTECTION
TITLE 12 RESERVED
TITLE 13 BUILDINGS AND CONSTRUCTION
TITLE 14 RESERVED*
TITLE 14A ADMINISTRATIVE PROVISIONS OF THE CHICAGO CONSTRUCTION CODES*
TITLE 14B BUILDING CODE*
TITLE 14C CONVEYANCE DEVICE CODE*
TITLE 14E ELECTRICAL CODE*
TITLE 14F FIRE PREVENTION CODE*
TITLE 14G FUEL GAS CODE*
TITLE 14M MECHANICAL CODE*
TITLE 14N 2022 ENERGY TRANSFORMATION CODE*
TITLE 14P PLUMBING CODE*
TITLE 14R BUILDING REHABILITATION CODE*
TITLE 14X MINIMUM REQUIREMENTS FOR EXISTING BUILDINGS*
TITLE 15 FIRE PREVENTION
TITLE 16 LAND USE
TITLE 17 CHICAGO ZONING ORDINANCE
TITLE 18 BUILDING INFRASTRUCTURE
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APPENDIX TO THE MUNICIPAL CODE OF CHICAGO (RESERVED)*
TABLES
Chicago Zoning Ordinance and Land Use Ordinance
CHICAGO ZONING ORDINANCE AND LAND USE ORDINANCE
TITLE 16 LAND USE
TITLE 17 CHICAGO ZONING ORDINANCE
18-29-713.11.1 Bedpan steamers.
   The minimum size of a sterilizer vent serving a bedpan steamer shall be 1 1/2 inches (38 mm) in diameter. Multiple installations shall be sized in accordance with Table 18-29-713.11.1.
Table 18-29-713.11.1
Stack Sizes for Bedpan Steamers and Boiling Type Sterilizers (Number of Connections of Various Sizes Permitted to Various-Sized Sterilizer Vent Stacks)
Stack Size (inches)
Connection Size
1 1/2"
2"
Stack Size (inches)
Connection Size
1 1/2"
2"
1 1/2 a
1
or
0
2 a
2
or
1
2 b
1
or
1
3 a
4
or
2
3 b
2
or
2
4 a
8
or
4
4 b
4
or
4
 
For SI: 1 inch = 25.4 mm.
a.   Total of each size.
b.   Combination of sizes.
18-29-713.11.2 Boiling-type sterilizers.
   The minimum size of a sterilizer vent stack shall be 2 inches (51 mm) in diameter where serving a utensil sterilizer and 1 1/2 inches (38 mm) in diameter where serving an instrument sterilizer. Combinations of boiling-type sterilizer vent connections shall be sized in accordance with Table 18-29-713.11.1.
18-29-713.11.3 Pressure sterilizers.
   Pressure sterilizer vent stacks shall be 2 1/2 inches (64 mm) minimum. Those serving combinations of pressure sterilizer exhaust connections shall be sized in accordance with Table 18-29-713.11.3.
Table 18-29-713.11.3
Stacks Sizes for Pressure Sterilizers (Number of Connections of Various Sizes Permitted to Various- Sized Vent Stacks)
Stack Size (inches)
Connection Size
3/4"
1"
1 1/4"
1 1/2"
Stack Size (inches)
Connection Size
3/4"
1"
1 1/4"
1 1/2"
1 1/2 a
3 or
2 or
1
–
1 1/2 b
2 and
1
–
–
2 a
6 or
3 or
2 or
1
2 b
3 and
2
–
–
2 b
2 and
1 and
1
–
2 b
1 and
1 and
–
1
3 a
15 or
7 or
5 or
3
3 b
1 and
1 and
5 and
2 and
2
1
 
For SI: 1 inch = 25.4 mm.
a.   Total of each size.
b.   Combination of sizes.
18-29-713.11.4 Pressure instrument washer sterilizer sizes.
   The minimum diameter of a sterilizer vent stack serving an instrument washer sterilizer shall be 2 inches (50 mm). Not more than two sterilizers shall be installed on a 2-inch (50 mm) stack, and not more than four sterilizers shall be installed on a 3-inch (75 mm) stack.
18-29-714 Deliberately omitted.
18-29-715 Backwater Valves.
18-29-715.1 Sewage backflow.
   A backwater valve shall be installed only for plumbing fixtures where the overflow rim of the lowest plumbing fixtures are below the next upstream manhole in the public sewer. Plumbing fixtures with flood rims above the next upstream manhole shall not discharge through the backwater valve.
18-29-715.2 Fixture branches.
   Backwater valves shall be installed in the branch of the building drain that receives only the discharge from fixtures located within such branch and shall be located below ground.

Disclaimer: This Code of Ordinances and/or any other documents that appear on this site may not reflect the most current legislation adopted by the Municipality. American Legal Publishing provides these documents for informational purposes only. These documents should not be relied upon as the definitive authority for local legislation. Additionally, the formatting and pagination of the posted documents varies from the formatting and pagination of the official copy. The official printed copy of a Code of Ordinances should be consulted prior to any action being taken. For further information regarding the official version of any of this Code of Ordinances or other documents posted on this site, please contact the Municipality directly or contact American Legal Publishing toll-free at 800-445-5588.

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