Charlotte Pipe FlowGuard Gold Installation Manual
FlowGuard
Gold
I N S T A L L A T I O N
(Updated November 2008)
®
TM-FGG
TECHNICAL MANUAL
© 2001-2008 Charlotte Pipe and Foundry Company
FlowGuard Gold® Technical Manual
Aerial view of the plastics molding and extrusion
plant at Monroe, North Carolina. Charlotte
Pipe® operates five other extrusion facilities
located in Muncy, Pennsylvania; Cameron, Texas;
Wildwood, Florida; Huntsville, Alabama; and
Cedar City, Utah.
Quality-tested cast iron pipe sets the
standard for quiet DWV performance.
Using cast iron and CPVC coppertube-sizes provides the best solution
for noise reduction in plumbing
systems.
Charlotte Pipe manufactures a full line of cast iron and plastic pipe and fittings.
When you specify a Charlotte® system, you can count on quality.
Charlotte and Charlotte Pipe are registered trademarks of Charlotte Pipe and Foundry Company.
Introduction
When you need a dependable hot- and cold-water piping system, specify Charlotte Pipe’s full
line of CPVC-CTS FLOWGUARD GOLD® pipe and fittings. Our market research indicated that
you and your customers require a potable-water system that will provide a lifetime of reliable
service. We have responded with a substantial investment in both manufacturing equipment and
tooling to make certain that we meet your needs.
Charlotte Pipe’s decision to offer you these CPVC products is a natural outgrowth of our history
of service to the plumbing industry. Started in 1901 as a manufacturer of cast iron soil pipe
and fittings, Charlotte continues to be an industry leader in these products today. We offer a full
line of cast iron pipe and fittings in No-Hub, Extra Heavy, and Service. Cast iron is a dynamic
part of our business and the Company continues its intense focus on operating efficient, modern
manufacturing facilities that produce the highest quality products.
In 1967 Charlotte Pipe formed our Plastics Division to manufacture PVC and ABS drain, waste
and vent systems. By remaining responsive to customer needs, Charlotte Pipe has become the
largest producer of plastic DWV pipe and fittings in the United States with production facilities in
Monroe, North Carolina; Cameron, Texas; Wildwood, Florida; Muncy, Pennsylvania; Huntsville,
Alabama; Cedar City, Utah. Our Industrial Division produces PVC Schedule 40 and Schedule 80
pipe and fittings, and CPVC Schedule 80 pipe and fittings. We will continue to deliver the highest
quality pipe and fitting systems that can be manufactured. Our customers benefit from our full
plastic pipe and fitting product range, excellent service, and a total commitment to quality.
Charlotte Pipe continues to be a privately held, strongly capitalized company that is committed
to the plumbing industry. We spend millions of dollars each year to improve our manufacturing
facilities, create and operate the most modern information technology, and support our people
with high-quality training. As a result, Charlotte Pipe is able to provide you with a system of
the highest quality products and the best service in the industry. We manufacture our pipe and
fittings to exacting standards for a tight, reliable fit. We call it the TrueFit System.
What's the benefit of the Charlotte Pipe TrueFit® system? You have peace of mind knowing that
the system you've purchased will fit together precisely, virtually eliminating problems caused by
inferior product quality. You can rely on Charlotte to provide a wide range of high-quality TrueFit
piping systems to meet your needs.
To help answer your questions about Charlotte Pipe’s CPVC-CTS FlowGuard Gold system, this
manual is arranged with a Table of Contents in the front and an easy-to-use Index in the back. If
you have questions that are not answered by this manual, please call your local representative,
call Charlotte Pipe at 800⁄438-6091 or visit our web site at www.charlottepipe.com. Our partner
in the FlowGuard Gold program, The Lubrizol Corporation, is also available to answer your
questions at 800/331-1144.
Thank you for your confidence in Charlotte Pipe. We look forward to serving you.
Charlotte Pipe TrueFit is a registered trademark of Charlotte Pipe and Foundry Company.
FlowGuard Gold is a registered trademark of The Lubrizol Corporation.
FlowGuard Gold® Technical Manual
TABLE OF CONTENTS PAGE
Suggested Specification ......................................................................................................5
Joints .................................................................................................................................6
Threaded Fittings ............................................................................................................... 7
Horizontal and Vertical Support ......................................................................................... 8
CPVC Pipe Passing Through Studs ...................................................................................... 8
Chemical Compatibility .......................................................................................................8
Special Applications ...........................................................................................................8
Hydronic Heating Applications ..........................................................................................10
Thermal Conductivity & Sweating .....................................................................................10
Thermal Expansion ...........................................................................................................11
Expansion Loops ..............................................................................................................12
Pressure Rating vs. Temperature .......................................................................................13
Friction Loss and Flow Velocity for SDR 11 CTS CPVC Thermoplastic Pipe ....................... 14
Closed-Loop Systems ........................................................................................................15
Recirculating Chilled/Hot Water Systems ..........................................................................15
Elevated-Temperature Performance ................................................................................... 15
Low Temperature Recommendations ..................................................................................16
Cold Weather Considerations ............................................................................................16
Antifreeze Solutions ......................................................................................................... 17
Disinfection ......................................................................................................................18
Under-Slab Installations ...................................................................................................18
In-Slab Installations .........................................................................................................18
HVAC-Condensate Drain Lines ..........................................................................................18
UV Exposure ....................................................................................................................19
Testing of CPVC Piping .....................................................................................................19
Important Product Standards and Listings ........................................................................ 20
ASTM Standards ..............................................................................................................20
Listings and Code Approvals .............................................................................................20
Model Plumbing Code Approvals .......................................................................................21
Dimensions - Pipe and Fittings ..........................................................................................22
Joining FlowGuard Gold Pipe and Fittings ........................................................................ 23
Dimensions and Tolerances ................................................................................................ 24
FlowGuard Gold Copper Tube Size (CTS) CPVC SDR 11 Pipe and Fittings Fact Sheet ........25
Warranty .........................................................................................................................26
Index ..............................................................................................................................27
Suggested Specification
System: FlowGuard Gold® CPVC Copper Tube Size (CTS) Hot and Cold Domestic Water Distribution System
Scope: This specification covers Copper Tube Size (CTS) CPVC manufactured to standard dimensional ratio (SDR) 11 for hot
and cold domestic water distribution. This system is intended for pressure applications where the operating temperature
will not exceed 180°F at 100 psi.
Specification: Pipe and fittings shall be manufactured from virgin rigid CPVC (chlorinated polyvinyl chloride) vinyl compounds with
a Cell Class of 24448 as identified in ASTM D 1784.
FlowGuard Gold CTS CPVC pipe and fittings shall conform to ASTM D 2846. Pipe and fittings shall be manufactured
as a system and be the product of one manufacturer. All pipe and fittings shall be manufactured in the United States.
Pipe and fittings shall conform to National Sanitation Foundation (NSF) Standards 14 and 61.
Installation shall comply with latest installation instructions published by Charlotte Pipe and Foundry and shall conform
to all local plumbing, building and fire code requirements. Buried pipe shall be installed in accordance with ASTM
F 1668. Solvent weld joints shall be made using CPVC cement conforming to ASTM F 493. Yellow one-step cement
may be used without primer. If a primer is required by local plumbing or building codes, then a primer conforming
to ASTM F 656 should be used. The system shall be protected from chemical agents, fire stopping materials, thread
sealant, plasticized vinyl products or other aggressive chemical agents not compatible with CPVC compounds. Systems
shall be hydrostatically tested after installation. Testing with compressed air or gas is not recommended. Testing with
compressed air or gas may result in injury or death.
Referenced Standards:
ASTM D 1784 Rigid Vinyl Compounds
ASTM D 2846 CPVC Plastic Hot and Cold Water Distribution System
ASTM F 493 Solvent Cements for CPVC Pipe and Fittings
ASTM F 1668 Procedures for Buried Plastic Pipe
NSF Standard 14 Plastic Piping Components and Related Materials
NSF Standard 61 Drinking Water System Components - Health Effects
Note: Latest revision of each standard applies.
FlowGuard Gold is a registered trademark of The Lubrizol Corporation.
Short Specification:
Specification for Commercial Systems (with piping components 1/2
All pipe and fittings to be manufactured from CPVC compound with a cell class of 24448 for pipe and 23447 for fittings
as per ASTM D 1784 and conform with National Sanitation Foundation (NSF) standards 14 and 61.
1/2" through 2" sizes: FlowGuard Gold® CPVC Copper Tube Size manufactured to standard dimension ratio (SDR) 11
and shall conform to ASTM D 2846. Transition fittings to have brass male or female connections with integral CPVC
socket connections as manufactured by Charlotte Pipe and Foundry Company.
3" through 6" sizes: Corzan® CPVC Schedule 80 iron pipe size (IPS). Pipe shall conform to ASTM F 441. Socket type
fittings shall conform to ASTM F 439. Transition to metal piping to be made using 150# flanged connections.
All pipe and fittings to be produced by a single manufacturer and to be installed in accordance with manufacturer’s
recommendations and local code requirements. Buried pipe shall be installed in accordance with ASTM F 1668. FlowGuard
Gold to be joined using approved one-step solvent cement conforming to ASTM F 493. Corzan to be installed using
approved solvent cement conforming to ASTM F 493 and primer conforming to ASTM F 656. Pipe and fittings to be
manufactured by Charlotte Pipe and Foundry Company and are intended for hot and cold domestic water distribution
systems.
Specification for Single-Family Residential Systems (with piping components
All pipe and fittings to be manufactured from CPVC compound with a cell class of 24448 for pipe and 23447 for fittings
as per ASTM D 1784 and conform with National Sanitation Foundation (NSF) standards 14 and 61.
Pipe and fittings to be FlowGuard Gold® CPVC Copper Tube Size manufactured to standard dimension ratio (SDR) 11
and shall conform to ASTM D 2846. Transition fittings to have brass male or female connections with integral CPVC
socket connections as manufactured by Charlotte Pipe and Foundry Company.
All pipe and fittings to be produced by a single manufacturer and to be installed in accordance with manufacturer’s
recommendations and local code requirements. Buried pipe shall be installed in accordance with ASTM F 1668. Solvent
cement shall conform to ASTM F 493 and system may be installed with approved one-step cement. Pipe and fittings to be
manufactured by Charlotte Pipe and Foundry Company and are intended for hot and cold water distribution systems.
"
- 6"):
1/2"
- 2" ):
5
FlowGuard Gold® Technical Manual
The following installation tips, warnings and technical information are intended to help you
install FlowGuard Gold CPVC pipe. They are not meant to be a replacement for the installation
instructions, techniques and procedures which should be used in conjunction with this Manual.
You are urged to read the entire Manual. As with any pressure system, failure to follow proper
installation techniques and procedures could result in property damage or personal injury.
FlowGuard Gold CPVC pipe and fittings are intended for potable water distribution systems.
Piping systems using CPVC pipe 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.
JOINTS
1. Before making a CPVC joint, visually inspect pipe ends for damage and foreign materials.
Burrs and filings may prevent proper contact between the pipe and fitting during assembly
and should be removed from both the outside and inside of the pipe. A chamfering tool
is recommended for this purpose. Chamfering may also assist in preventing a rough pipe
edge from plowing cement into a fitting hub.
2. Pipe may be cut quickly and efficiently by several methods. At low temperatures a circular
pipe cutter designed for plastic pipe is preferred. A ratchet cutter is another good option.
Make sure that the cutter blades are sharp. Pipe cuts must be square. Pipe ends
should be free of cracks. Chamfering may assist in identifying cracks as the chamfering
tool may catch on cracks that are present.
3. When making a CPVC joint, ensure that the solvent cement conforms to ASTM F 493.
It is important to use an applicator that is one-half the diameter of the pipe being joined.
Do not allow excess primer or cement to puddle in the joint assembly as this may
lead to premature failure.
4. Use CPVC cement only. Cement labels must be marked with ASTM F 493 and NSF
designations. Never use PVC cements. All-purpose cements are unacceptable unless
specifically marked as meeting the foregoing requirements. Most CTS CPVC cements are
orange and light to medium-bodied. FlowGuard Gold® yellow one-step cement meeting
ASTM F 493 is also available. Do not use cements older than the marked shelf life or
cements that have gelled or frozen.
5. Caution: Cements, primers and cleaners contain solvents. Use only where ventilation
is proper and keep away from all sources of ignition, such as heat, sparks or open
flames. Avoid skin and eye contact. In case of an accident, follow the hazardous
warning and medical treatment statement on the container.
6. Apply a light thin coat of cement inside the fitting hub. Apply an even coat of cement to
the pipe end. Too much cement can clog the pipe or weaken the pipe wall.
6
7. While inserting the pipe into the fitting socket, rotate the pipe one-quarter to one-
half turn. Once the pipe end is seated, hold it in place for five to ten seconds to
allow the joint to set.
8. Never put a fitting joint under mechanical stress, i.e., don't bend a joint.
THREADED FITTINGS
A wide variety of male and female threaded fittings are available to transition from CPVC to
valves and plumbing fixtures.
1. Do not use CPVC threaded female adapters. When joining CPVC to metallic threaded
fittings, it is recommended that CPVC male threads be screwed into metallic female
threads rather than metallic male threads into CPVC female threads.
2. CPVC threaded male adapters are recommended for cold water applications only.
Please see the "Special Applications - Water Heaters" section of this technical manual for
additional detail. Brass threaded transition fittings are recommended for all hot water
applications.
3. Teflon tape is recommended for all threaded connections and should be a .4 minimum
density, .003” thick, .50% elongation and chemically inert. To apply start with two wraps
at fitting end, wrap all threads overlapping half the width of the tape in the direction of
the threads on each wind.
Use of improper paste type pipe sealant may result in failure of pipe or fittings.
Always verify with the manufacturer of the pipe sealant to confirm chemical compatibility with CPVC and brass components. Never use joint compound containing
ammonia or chlorine on brass threaded fittings.
4.
Only join to threaded components conforming to ANSI/ASME B1.20.1 or ASTM F 1498.
5. CPVC or brass threaded fittings
should be hand tightened and then receive
one full turn with an appropriate torque
wrench. The following chart shows the correct amount of tape and torque required
to make a properly functioning assembly.
Note:
• Never use pneumatic tools for
tightening.
• Never apply more than light pres-
sure on a male brass or CPVC
threaded fitting when clamping in
a vise. Never clamp female brass
transition fittings in a vise.
Installation of Brass and CPVC Threaded Fittings
Torque Setting
Brass CPVC
Pipe Threaded Threaded Teflon
Size Fittings Fittings Tape
1⁄2" 14 ft.lbs. 3 to 5 ft.lbs.
3⁄4" 18 ft.lbs. 4 to 6 ft.lbs.
1" 24 ft.lbs. 5 to 7 ft.lbs
1 1⁄4" 30 to 60 ft.lbs. 5 to 7 ft.lbs 1" width
1 1⁄2" 23 to 34 ft.lbs. 6 to 8 ft.lbs 1" width
2" 36 to 50 ft.lbs. 8 to 10 ft.lbs 1" width
1
⁄2" width
1
⁄2" width
1
⁄2" width
Note: 1 foot pound = 12 inch pounds
7
FlowGuard Gold® Technical Manual
HORIZONTAL AND VERTICAL SUPPORT
Most plumbing and building codes require support for horizontal piping lines every 3 feet for pipe
in 1⁄2"-1" diameters, and every 4 feet for pipe with diameters greater than 1". Support spacing
should be in accordance with applicable plumbing and building codes.
Vertical CPVC piping should be properly supported and have a mid-story guide, unless thermal
expansion requires another design.
The pipe should not be anchored tightly by the support, but secured in a manner to allow
for movement caused by thermal expansion and contraction. It is recommended that you
use clamps or straps furnished by Charlotte Pipe that allow pipe to remain away from the
framing, thus reducing the noise generated when pipe is allowed to rub against wood.
Use hangers and clamps that are chemically compatible with CPVC CTS FlowGuard Gold
pipe and fittings.
CPVC PIPE PASSING THROUGH STUDS
Plastic insulators do not need to be used when CPVC pipe passes through wood studs.
However, when CPVC pipe passes through metal studs, some form of protection must
be used to protect the pipe from abrasion and to prevent noise. Plastic insulators, rubber
grommets, pipe insulation or similar devices may serve this purpose.
CHEMICAL COMPATIBILITY WITH FLOWGUARD GOLD CPVC PRODUCTS
CPVC domestic water systems have been used successfully for 40 years in new construction, repipe
and repair. CPVC products 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
FlowGuard Gold CPVC systems are chemically compatible. Charlotte Pipe recommends that
CPVC chemical compatibility be confirmed with the manufacturer 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 FlowGuard Gold CPVC Chemical Compatibility sheet.
SPECIAL APPLICATIONS
1. Water heaters
Special considerations may be necessary when connecting CPVC pipe to a water heater.
The hot water from a properly functioning water heater itself will not adversely affect
the CPVC.
8
Instructions from the manufacturer of the water heater and applicable local
plumbing and building codes should be followed.
Do not use CPVC pipe or fittings on systems capable of achieving temperatures
greater than 180°F.
When CPVC pipe is used with an electric water heater, a CPVC-to-brass transition
fitting should be used. CPVC threaded male adapters should not be used to connect
to water heaters or connect to metallic nipples in close proximity to water heater.
When connecting to a gas water heater, CPVC should not be located within 6" of the
flue or used to make the direct connection to the hot water side. A metal section of
pipe and a CPVC-to-brass threaded transition fitting should be used. This reduces
the potential for damage to the CPVC pipe that may result from excessive radiant
heat from the flue.
CPVC can be connected to tankless gas water heaters using a CPVC-to-brass
threaded transition fitting. Verify code requirements prior to installation.
2. Tub fillers, showerheads and outside sillcocks
CPVC should be connected to tub fillers, showerheads and outside sillcocks with a CPVC
to brass threaded transition fitting or a metal nipple. Direct connection to CPVC or CPVC
threaded fittings is not recommended.
3. Stub-outs for lavatories
CPVC pipe can be used for stub-outs for lavatories, closets and sinks.
4. Brass compression ferrules
CPVC pipe can be used with standard brass ferrules to make compression connections
where the operating temperature will not exceed 140°F. The O.D. of copper tube size
(CTS) CPVC pipe is identical to that of copper. We recommend that Teflon (PTFE) tape
be applied over the ferrule to allow for the dissimilar thermal expansion and contraction
characteristics of the metal ferrule and the plastic pipe that could possibly result in a
drip leak over a period of time. Do not over-torque the compression connection as
over-torquing may result in a cracked pipe. Non-metallic or nylon ferrules are not
recommended.
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