Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 653 - DESIGN, OPERATION AND MAINTENANCE CRITERIA
Subpart A - DESIGN REQUIREMENTS
Section 653.111 - Polyvinyl Chloride Pipe
Universal Citation: 35 IL Admin Code ยง 653.111
Current through Register Vol. 48, No. 38, September 20, 2024
Polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) pipe may be used for water mains in accordance with the AWWA Standards or the following:
a) Basic Material Standards:
1) National Sanitation Foundation
(NSF) Standard 14.
2) American
Society for Testing and Materials (ASTM) Standard D1784-81.
3) Piping materials designated Class 12454B
(PVC 1120), Class 12454C (PVC 1220) and Class 23447B (CPVC 4120) are acceptable
in pressure ratings indicated in (b) below.
b) Pressure Rating Standards:
1) Schedule Ratings shall be in accordance
with ASTM Standards D1785-83 (PVC) and F441-77 (CPVC).
2) Standard Dimension Ratio - Pressure Rated
(SDR-PR) shall be in accordance with ASTM Standards D2241-83 (PVC) and ASTM
F442-77(CPVC).
3) Pipe shall be
rated at 160 psi or greater at 73.4 °F. Schedule 40 shall be required for
8-inch diameter or less in grades PVC 1120, PVC 1220 and CPVC 4120. Schedule 80
shall be required for larger sizes. Pipe to be threaded shall be at least
Schedule 80 for 4 inch diameter or less, or Schedule 120 for sizes greater than
4 inch diameter.
4) SDR rating
shall be limited to a minimum pressure rating of 160 psi at 73.4°F. An SDR
rating of 26 or less shall be required for PVC 1120, PVC 1220, and CPVC
4120.
c) General Requirements:
1) PVC and CPVC fittings, where
used, shall be of the same material as the pipe and shall comply with ASTM
Standards:
A) D2466-78 for PVC Schedule
40,
B) D2467-76a for PVC Schedule
80,
C) D2464-76 for threaded PVC
Schedule 80,
D) F438-77 for CPVC
Schedule 40,
E) F439-77 for CPVC
Schedule 80,
F) F437-77 for
threaded CPVC Schedule 80.
2) Solvent cement shall be specific for the
piping material and shall comply with ASTM Standard D2564-80 (PVC) and F493-80
(CPVC).
3) Elastomeric seals
(gaskets) used for push-on joints shall comply with ASTM Standard
F477-76.
4) All piping, fittings
and solvent cement shall bear the NSF seal of approval. The piping shall be
visibly marked with the specific schedule number or SDR rating
number.
5) Jointing shall be
solvent welded, heat welded, pressure slip jointed, flanged or threaded joint.
Special precautions shall be taken to insure clean, dry contact surfaces when
making solvent or heat welded joints. Adequate setting time shall be allowed
for maximum strength.
6) Plastic
pipe shall be supported in accordance with the manufacturer's recommendations.
Support intervals shall not be further apart than one-fourth of those allowed
for steel pipe of equivalent size.
7) Compensation for expansion of buried PVC
and CPVC piping shall be made by snaking in the trench or by installing offset
expansion loops.
8) Disinfection of
plastic piping shall be as specified in AWWA Standard C601.
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