How to Guide

105
SPECIAL CONSIDERATIONS
The installation tips, warnings and technical information
in this Special Considerations section are intended to help
improve material selection and installation techniques. The
information found in this section enhances but does not re-
place the information found in other sections of this Technical
Manual.
Special Considerations
• FlowGuardGoldCTSCPVCDomesticWaterSystems
• HydronicApplications
• Selection of Materials for Sanitary and Storm Drain-
age
• EngineeredApplications
• UnstableSoil
• PlasticsinMulti-StoryConstruction
• CombustionGasVenting
FlowGuard Gold
®
Domestic
Water Systems
FlowGuard Gold pipe and fittings are made from a special-
ty plastic known as chlorinated polyvinyl chloride (CPVC).
FlowGuard Gold CPVC is the result of new technology that
ensures product toughness year round. FlowGuard Gold wa-
ter distribution systems are assembled with readily available
tools.Solventcementjoints–provenwithnearly50yearsof
successfulservicehistory–helpassurethereliabilityofa
FlowGuard plumbing system.
FlowGuard Gold CPVC pipe and fittings are designed, manu-
factured and listed for domestic water applications. Piping
systems using CPVC should be installed by licensed plumbing
contractors in accordance with normal industry standards,
good plumbing practices and in compliance with applicable
plumbing codes, building codes and other regulations.
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.
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.
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.
• Itoperatesquietly–withsilentwaterflowandno
banging from water hammer.
• CPVCisresistanttocorrosion,pittingandscaling
–thismeansno loss of water pressure and reduced
maintenance.
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.
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