Polyvinyl Chloride (PVC) piping is the most widely used plastic piping
Provide long service life.
to install and handle.
Widely accepted by codes.
PVC pipe is manufactured by extrusion in a variety of sizes and dimensions
and generally sold in 10' and 20' lengths. PVC pipe is available in both
solid wall or cellular core construction. Cellular core construction
involves the simultaneous extrusion of at least three layers of material
into the pipe wall: a solid outer layer, a cellular core intermediate layer,
and a solid inner layer. PVC pipe is made to conform to various ASTM
standards for both pressure and non-pressure applications.
PVC piping is used for:
It can be used under ground or above ground in buildings. It can also be
used outdoors if the pipe contains stabilizers and UV inhibitors to shield
against ultraviolet radiation and it is painted with a water-based latex
PVC materials are resistant to many ordinary chemicals such as acids, bases,
salts and oxidants.
Because PVC piping system components can be manufactured in a variety of
colors, identification of application is easy. A common color scheme
(although not universal) is:
for DWV and some low pressure applications.
White, blue, and dark gray for cold water piping.
for sewer service.
gray for industrial pressure applications.
This color scheme has an exception in that much of the white PVC pipe is
dual rated for DWV and pressure applications.
PVC piping systems should not be used to store and/or convey compressed air
or other gases. PVC piping systems should not be tested with compressed air
or other gases either.
PVC piping is recognized as acceptable material for DWV, sewers, and potable
water services and distribution in all model plumbing codes. These Codes
normally identify acceptable products for specific uses based on the ASTM
Because printing on PVC piping is simple, markings are always easy to
identify. ASTM standards mandate that PVC pipe be labeled as follows:
manufacturer's name or trademark.
standard to which it conforms.
Material designation (e.g., PVC 12454, of PVC 1120, or PVC Type 1, Grade
if for drainage.
Pressure rating if for pressure.
number or Schedule number.
the pipe is for potable water, a laboratory seal or mark attesting to
suitability for potable water.
piping systems is easy. Contractors love this lightweight
piping material. Just follow some simple, common-sense steps:
Follow local code requirements.
Follow recommended safe work practices.
Follow proper handling procedures.
the manufacturer's installation instructions.
pipe and fittings in original packaging until needed.
pipe and fittings with an opaque tarp if stored outdoors.
Inspect pipe for damage prior to use.
tools specifically designed for use with plastic pipe.
drop cloth to protect finishes in the work area.
When joining PVC pipe and fittings with solvent cement, always:
the pipe ends square.
and deburr the pipe ends with a chamfering tool.
the proper primer and solvent cement and follow manufacturer's
the proper size applicator for the pipe being joined.
Rotate the pipe 1/4 turn when bottoming pipe in fitting socket.
puddling of primer or cement in fittings and pipe.
For threaded connections, always:
To properly support PVC piping systems:
for movement due to expansion and contraction.
hangers designed for use with plastic.
Follow proper hanger support spacing requirements.
Protect from nails, screws, and abrasive surfaces.
When testing an installed PVC piping system:
Follow the manufacturer's recommended cure times prior to pressure
in accordance with local codes.
only glycerin and water solutions for freeze protection when applicable.
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