Expansion does NOT vary with pipe size. The stresses developed in CPVC are
generally much smaller than those developed in metal systems for equal
temperature changes because of significant differences in elastic modulus.
Therefore, expansion loop requirements are not significantly different thatn
those recommended for copper tubing. Thermal expansion can generally be
accommodated at changes in direction. On a long straight run.
Coefficient of Thermal Expansion
Low Bacteria Build up
Important CPVC piping supports the lowest bacterial growth compared with
traditional piping materials. ( Kindly, refer to our technical department for any further detailed
Excellent Chemical Resistance
Transitions from ECOTUBE CPVC to Other Materials
Numerous specialty transitions incorporating rubber seals at the plastic-to
metal interface are available and should always be used on lines where normal
water temperature of 65 ºC or higher are anticipated. Male CPVC threaded
adaptors are also available for connecting valves and appurtenances on cold
water lines. TFE (Teflon) therad tape is always safe for making CPVC threaded
connections. Some paste-type sealants contain solvents that may be damaging to
CPVC. If you prefer to use a paste or pipe dope, always check with the
manufacturer regarding its compatibility with CPVC. Use of an improper paste or
dope can result in failure of CPVC systems.
Hangers and Supports
Because ECOTUBE tubing is rigid, it requires fewer supports than flexible
plastic systems. For vertical runs, provide a support at each floor level, plus
a mid-story guide. For horizontal runs, support at 90 cm intervals for diameter
of 32 mm amd below and at 1.2 m intervals for larger sizes piping should not be
anchored tightly to supports, but rather secured with smooth straps or hangers
that allow for movement caused by expansion and contraction. Most hangers
designed for metal pipes are suitalbe for ECOTUBE Hangers should not have rough
or sharp edges which come in contact with the tubing.
This Means that CPVC
Needs less hangers and supports.
There is no unslightly "looping" of the pipe.
Is suitalbe for vertical risers.
Has a higher pressure bearing capability.
This leads to the same flow rate with a smaller pipe size.
Fire Rated Construction
Testing demonstrates that ECOTUBE CPVC meets 25/50 flame spread /smoke
developed requirements for installations within plenums. Fire wall penetrations
must be sealed with approved materials or devices, such as those listed in the
UL Building Materials Directory. Consult the local building official in your
Note: For further technical information, please contact Toutounji
Plastics Group "TPG".