CPVC

In by Mark Goodman

Rigid plastic pipe used in plumbing and water supply systems, where code permits its use and installation.

Synonyms:
chlorinated polyvinyl chloride
CPVC (Wikipedia)
Chlorinated polyvinyl chloride
Names
Other names
Polychloroethylene
Identifiers
Abbreviations CPVC, PVC-C
ChemSpider
  • none
ECHA InfoCard 100.122.975
Properties
for 67% Cl Polymer:(C9H11Cl7)n
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chlorinated polyvinyl chloride
Type Thermoplastic
Physical properties
Density (ρ) 1.56 g/cm3
Water absorptionEquilibrium (ASTM) 0.04–0.4
Mechanical properties
Young's modulus (E) 2.9–3.4 GPa
Tensile strengtht) 50–80 MPa
Elongation (ε) at break 20–40%
Notch test 2–5 kJ/m2
Thermal properties
Melting temperature (Tm) 150 °C[citation needed]
Glass transition temperature (Tg) 106–115 °C
Vicat softening point—50 N (Vicat B) 106 to 115 °C
Thermal conductivity (k) 0.16 W/(m·K)
Linear thermal expansion coefficient (α) 8×10−5K−1
Specific heat capacity (c) 0.9 kJ/(kg·K)
Economics
Price

2.50–3.02 $/ft

0.5–1.25 €/kg
CPVC sprinkler pipe inside a firestop mock-up

Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin, which is significantly more flexible and can withstand higher temperatures than standard PVC. Uses include hot- and cold-water pipes and industrial liquid handling. CPVC, as PVC, is deemed safe for the transport and use of potable water, potable meaning water used for drinking, cooking, and bathing.

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