long service life.
install and handle.
accepted by codes.
Industrial CPVC pipe is manufactured by extrusion in sizes from ¼" to 12"
diameter to Sch 40, Sch 80, and SDR (Standard Dimension Ratio) dimensions.
CPVC pipe for plumbing systems is manufactured by extrusion in sizes ¼"
through 2" copper tube size (CTS) dimensions. The CTS plumbing
made to copper tube outside diameter dimensions, in accordance with ASTM
D-2846 specifications, and have an SDR 11 wall thickness. The pressure
ratings of the CTS SDR 11 systems are 400 psi (pounds per square inch) at 73
F and 100 psi at 180 F. CPVC plumbing pipe is sold
in both straight lengths
and (in small diameters) coils.
CPVC piping which is suitable for hot and cold water distribution has
a 400 psi pressure rating at room temperature, and a 100 psi pressure
at 180 F.
CPVC materials are resistant to many everyday household chemicals.
Since CPVC materials do not support combustion, they cannot burn
without an external fuel source. This property makes CPVC pipe an attractive
alternative to steel and copper pipe for fire sprinkler applications. CPVC
fire sprinkler piping systems are approved for light hazard applications and
for use in single and multifamily dwellings. Installation shall be in
accordance with the NFPA Section 13, 13D, and 13R.
CPVC piping for potable hot and cold water distribution systems is
recognized in all model plumbing codes.
Also, CPVC plumbing pipe is safe for installation in return air plenums;
however, the installation must be approved by the local jurisdiction. Even
though CPVC is considered a combustible material it will not burn without a
significant external flame source. Once the flame source is removed CPVC
will not sustain combustion. Testing indicates that water filled CPVC in
diameters 3" or less will pass the 25/50 flame smoke developed requirements
for non-metallic material in return air plenums.
CPVC fire sprinkler pipe tested and listed in accordance with UL 1887, "Fire
Test of Plastic Sprinkler Pipe for Flame and Smoke Characteristics," meets
the requirements of NFPA 90A for installation in return air plenums.
CPVC pipe and fittings are produced by many manufacturers, and are available
in Schedule 40 and Schedule 80 dimensions, as well as CPVC tubing which is
suitable for potable hot and cold water distribution. The tubing is based on
copper tube sizes (OD) and IPS pipe (OD), with SDR 11 wall thicknesses.
must be labeled at not more than 1.5 meters (5 feet) intervals as follows:
The manufacturer's name or trademark
The standard to which it conforms
Resin type or cell class according to ASTM D-1784, e.g. CPVC 23447
SDR number or Schedule number
If the pipe is for potable water, a laboratory seal or mark attesting to
suitability for potable water
DO'S & DONTS FOR INSTALLING
DO's FOR ALL
the manufacturer's installation instructions.
sure all thread sealants, gasket lubricants, and fire stop materials are
compatible with CPVC.
pipe and fittings in original packaging until needed.
tools specifically designed for use with plastic pipe and fittings.
pipe ends square.
and bevel the pipe ends with a chamfering tool.
proper solvent cement and follow application instructions.
the pipe at least ¼ turn when bottoming the pipe into the fitting
puddling of cement in fittings and pipe.
the cement manufacturer's recommended cure times prior to pressure
CPVC tube slight movement to permit thermal expansion.
plastic pipe straps that fully encircle the tube.
holes ¼" larger than the outside diameter of the tube, when penetrating
protective pipe isolators when penetrating steel studs.
metallic clevis or tear drop hangers when suspending tube from
DO's FOR UNDERSLAB CONSTRUCTION
compatible sleeving material and tape.
Securely tape the top of the sleeve to the pipe.
pipe sleeve 12" above and below the slab.
Backfill and cover underground piping prior to spraying termiticide in
preparation for concrete pour.
FOR ALL CONSTRUCTION
use petroleum or solvent based sealants, lubricants, or fire stop
use edible oils, such as Crisco, for a lubricant.
use solvent cement that has exceeded its shelf life or has become
discolored or jelled.
pressure test until the recommended joint cure times are met.
thread, groove, or drill CPVC pipe.
overtighten or lock down the system.
install in cold weather without allowing for thermal expansion.
use tube straps which tend to restrict expansion/contraction.
use wood or plastic wedges that strain the tube as it passes through
use pipe isolators as tube passes through wood studs
bend CPVC tube around DWV stacks causing the two materials to bind
against each other.
terminate a run of tube against an immovable object (e.g., a floor
FOR UNDERSLAB CONSTRUCTION
allow heavy concentrations of termiticides to come into direct and
sustained contact with CPVC pipe.
inject termiticides into the annular space between the pipe wall and
spray termiticide, when preparing a slab, without first backfilling over
cut sleeving too short. Sleeving material should extend 12" above and
below the slab.
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