Installation Guide

106
Plastics Technical Manual
ADDITIONAL CONSIDERATIONS
Use of FlowGuard Gold
®
CTS CPVC all-plastic threaded
male adapters in hot water applications may result in
system failure and property damage.
• Use plastic threaded CTS CPVC male adapters in cold
water applications only.
• Use CTS CPVC x brass threaded transition fittings for hot
water applications.
• Do not use compression fittings with brass ferrules to
connect to CTS CPVC pipe or fittings where water
temperatures will exceed 140 degrees F.
• CPVC pipe can be used with standard brass ferrules to
make compression connections where the operating
temperature will not exceed 140°F. Apply Teflon (PTFE)
tape over the ferrule to allow for the dissimilar thermal
expansion and contraction characteristics of the metal
ferrule and the plastic pipe.
Piping systems differ in chemical resistance. Pipe or fittings
may be damaged by contact with products containing
incompatible chemicals resulting in property damage.
• Verify that paints, thread sealants, lubricants, plasticized
PVC products, foam insulations, caulks, leak detectors,
insecticides, termiticides, antifreeze solutions, pipe
sleeve, firestop materials or other materials are
chemically compatible with ABS, PVC or CPVC.
• Do not use edible oils such as Crisco
®
for lubricant.
• Read and follow chemical manufacturer’s literature
before using with piping materials.
• Confirm compatibility of pipe marking adhesive tape
with the manufacturer of the tape to ensure chemical
compatibility with CPVC pipe and fittings.
NOTICE: CPVC Schedule 80 domestic water sys-
tems must be installed using IPS P-70 or Oatey In-
dustrial Grade primers and IPS 714 or Oatey CPVC
Heavy Duty Orange solvent cements. FlowGuard
Gold, the industry-leading hot and cold water system,
is typically installed in
1
⁄2 -2 inch applications.
Disinfection
FlowGuardGoldandReUze
®
CPVC have been tested and found
to be unaffected by chlorine in concentrations up to 3,000
partspermillioninwater.Normalsystemdisinfectionat50
parts per million chlorine will not harm CPVC.
The Advantages of a FlowGuard
Gold
®
CPVC System
A FlowGuard Gold water distribution system outperforms a
metal plumbing system in several important ways:
• It’s more energy efficient – with better heat retention
and lower hot water heating costs.
• Condensation is reduced–significantlyreducingthe risk
of drip damage.
• Itoperatesquietly–withsilentwaterflowandnobang-
ing from water hammer.
• CPVCisresistanttocorrosion,pittingandscaling–this
means no loss of water pressure and reduced mainte-
nance.
Chemical Compatibility With
CPVC Products
CPVC domestic water systems have been used successfully for
50 years in new construction, repipe and repair. CPVC prod-
ucts are ideally suited for domestic water applications due to
their corrosion resistance. Occasionally, however, CPVC can be
damaged by contact with chemicals found in some construction
products including thread sealant, fire stopping compounds,
pipe sleeves or insulation. Reasonable care needs to be taken to
ensure that products coming into contact with CPVC systems
are chemically compatible. Charlotte Pipe recommends that
CPVC chemical compatibility be confirmed with the manufac-
turer of any product coming into contact with CPVC piping
systems. If chemical compatibility with CPVC is in question,
Charlotte Pipe recommends isolating the suspect product from
contact with CPVC pipe or fittings.Please call Charlotte Pipe
at800/438-6091orvisitourwebsitewww.CharlottePipe.com
for the latest CPVC Chemical Compatibility sheet.
Care should be taken to isolate CPVC piping systems from
direct contact with heavy concentrations of termiticides. Vinyl
piping materials such as CPVC may be damaged by termiti-
cides where they are injected into the annular space between
the pipe wall and sleeving material trapping the termiticides
against the pipe wall. Common-sense precautions will prevent
installation problems.
NOTICE: In understanding spray polyurethane foams, there
aretwogeneralareasofconcernforCPVCpipeandttings;
(1) chemical compatibility and (2) potential damage to pipe
and fittings due to high temperatures generated as a result
of the exothermic chemical reaction during the installation
and curing process. It is possible to apply polyurethane foam
insulation properly without damage to CPVC pipe and fittings.
However,theuseofpolyurethanefoaminsulationinconjunc-
tion with CPVC has resulted in the failure of CPVC pipe and
fittings and property damage. Therefore, Charlotte Pipe and
Foundry does not recommend the use of polyurethane spray on
foam insulation in conjunction with its CPVC pipe and fittings.