How to Guide
12
Cast Iron Installation
GENERAL INFORMATION
P0 Box 35430 Charlotte, NC 28235 USA 704/348-6450 800/572-4199 FAX 800/553-1605 www.charlottepipe.com
PRODUCT SPECIFICATION
System: Hubless Cast Iron Soil Pipe and Fittings
Scope: This specification covers hubless Cast Iron pipe, fittings, and couplings used in sanitary drain,
waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use
in non-pressure applications.
Specification: Hubless Cast Iron pipe and fittings shall be manufactured from gray cast iron with a tensile
strength of not less than 21,000 psi. Regular hubless couplings shall be shielded and conform to
CISPI Standard 310 with an elastomeric gasket meeting the requirements of ASTM C 564 and
be certified by NSF
®
International. Heavy Duty hubless couplings shall be shielded and conform
to ASTM C 1540, with an elastomeric gasket meeting the requirements of ASTM C 564.
Pipe and fittings shall comply with CISPI 301. All pipe and fittings shall be made in the United
States and marked with the collective trademark of the Cast Iron Soil Pipe Institute,
®
, and
listed by NSF
®
International. All pipe and fittings shall be of the same manufacturer. All systems
shall utilize a separate waste and vent system.
Installation shall comply with the latest installation instructions published by Charlotte Pipe and
Foundry and shall conform to all applicable plumbing, fire, and building code requirements. Joints
shall be made with hubless couplings and tightened using a calibrated torque wrench. The system
shall be hydrostatically tested after installation to 10 ft. of head (4.3 psi maximum). WARNING!
Never test with or transport/store compressed air or gas in Cast Iron pipe or fittings; doing so can
result in explosive failures and cause severe injury or death.
Referenced Standards:
ASTM C 564 Rubber Gaskets for Cast Iron Soil Pipe and Fittings
CISPI 301 Hubless Cast Iron Soil Pipe and Fittings
CISPI 310 Hubless Couplings for Cast Iron Soil Pipe and Fittings
ASTM C 1277 Hubless Couplings
ASTM C 1540 Hubless Heavy Duty Couplings
Note: Latest revision of each standard applies.
Short Specification:
Hubless Cast Iron Soil Pipe and Fittings:
Hubless Cast Iron pipe and fittings shall be manufactured from gray cast iron and shall conform
to CISPI Standard 301. All pipe and fittings shall be marked with the collective trademark of
the Cast Iron Soil Pipe Institute
®
and listed by NSF
®
International. Hubless Couplings shall
conform to CISPI Standard 310 and be certified by NSF
®
International. Heavy Duty Couplings
shall conform to ASTM C 1540 and shall be used if indicated. Gaskets shall conform to ASTM C
564. All pipe and fittings are to be produced by a single manufacturer and are to be installed in
accordance with manufacturer’s recommendations and applicable code requirements. Couplings
shall be installed in accordance with the manufacturer’s band tightening sequence and torque.
Tighten bands with a properly calibrated torque-limiting device. Test the system hydrostatically
after installation to 10 ft. of head (4.3 psi maximum). WARNING! Never test with or transport/
store compressed air or gas in Cast Iron pipe or fittings; doing so can result in explosive failures
and cause severe injury or death.










