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APPLICATION NOTES

APPLICATION NOTES

GENERAL:

Endot Endopoly and Golden Jet Pipe is flexible, black, coiled pipe and EndoPure is a blue pipe with a clear core all of which are produced from polyethylene resins with the classification of PE 3408 or PE 3406.  The primary difference in the resins is the wall thickness required to achieve a specific pressure rating.  PE 3408 having the thinnest wall and PE 3406 having a slightly heavier wall for equivalent rating.  The type of resin has little to do with the installation method. (See Size Comparison Chart for details on product dimensions)

Endot Industries produces polyethylene pipe using PE 3408 and PE 3406 resins.  Endot pipe is available in pressure ratings of 100 PSI through 200 PSI.  All pressure ratings are for pipe and tubing at 73.40 F.  (See Temperature vs. Pressure Rating Chart)

Endot produces two types of polyethylene water pipe, ID controlled pipe, manufactured to ASTM specification D2239, commonly called IPS (Iron Pipe Size) pipe, and OD controlled tubing manufactured to ASTM specification D2737, known as CTS (Copper Tube Size) or as WST (Water Service Tubing).  ASTM (American Society for Testing and Materials) is a widely recognized organization that develops standards on characteristics and performance of materials, products, systems and services.  Endot also produces pipe to ASTM D3035 and D2447, OD controlled specifications for Geothermal applications and other miscellaneous purposes.

Endot brand name products EndoPure, Endopoly, Golden Jet, Super Golden Jet, Black Diamond, Super and Pool-Flex are National Sanitation Foundation (NSF) Certified for use with potable drinking water.  NSF Certification provides the user with the highest level of confidence the pipe will not interact with nor release any chemicals into the water supply.  NSF Certified pipe and tubing is recognized by the permanent imprint of the NSF logo on the pipe.  The NSF Certification also assures the user the pipe is produced from one of the highest grades of raw material available.

All Endot pipe and tubing is permanently marked with indent printing.  Color coded printing identifies various pressure rating and grades.

STORAGE AND HANDLING:

Endot pipe should be stored so as to prevent damage by crushing or piercing.  Coils of black pipe may be stored outdoors without damage from weather or Ultraviolet exposure.  Colored pipe contains Ultraviolet inhibitors to protect it from sunlight, but colored pipe should be stored in a protected area away from Ultraviolet exposure.  Do not expose pipe and tubing to excessive heat.  Do not drag across rough ground and avoid hitting or placement on sharp objects when storing or placing in service.  Before pipe or tubing is installed each length should be inspected for transport damage, cuts, punctures or excessive abrasion.  Damage from shipping or handling may have occurred.  Although each coil is clean and sealed or capped when it leaves the factory dirt or debris may have entered the pipe during installation.  Flushing the pipe before final connections are made is good practice.


APPLICATION NOTES

SIZES - PRESSURE RATINGS - COIL SIZES

SIZE RANGE:

Iron Pipe Size (IPS) 1/2" through 3"
Copper Tube Size (CTS or WST) 3/4" through 2"
OD Controlled ASTM D3035 & D2447 3/4” through 4”

 

STANDARD INSIDE DIAMETER RATIO (SDR or SIDR):

Each size of IPS pipe (ASTM D2239) in each pressure range is rated with a SIDR number (Standard Inside Diameter Ratio).  The SIDR is determined by dividing the Nominal ID by the Minimum Wall Thickness.

STANDARD OUTSIDE DIAMETER RATIO (SDR or SODR):

OD controlled tubing (ASTM D2737, & D3035) is rated by Standard Outside Dimension Ratio (SODR) which is determined by dividing the Nominal OD by the Minimum Wall Thickness.

When selecting external compression fittings for use on IPS or CTS products the SIDR or SODR must be considered.  Selecting external compression fittings by pressure rating could result in the selection of the wrong fitting.  (See Size Comparison Chart)

Table # 1, Size Comparison Chart, lists the SIDR and SODR for each of the sizes and pressure ratings manufactured by Endot Industries.  See ASTM specifications D2737 and D2239 for details on IPS and CTS specifications.

PRESSURE RATINGS:

IPS pipe, ASTM D2239, is produced from 80 PSI to 200 PSI.

CTS tubing, ASTM D2737, is produced in 160 PSI with PE 3406 resin and 200 PSI with PE 3408 resin.

(Other manufacturers may produce PE 3408, 160 PSI tubing with a SODR of 11)

COIL SIZES:

The standard lengths of pipe coils range from 100 feet through 500 feet with each manufacturer having specific stock coil sizes for each size and pressure rating.  Endot's standard coil sizes may be found on the List Price Sheet for each product type.

Coils of 1000 feet and longer can be produced to order.  Endot Industries stocks wooden cable reels to allow the production of very long lengths of the heavier pipe such as 160 PSI and 200 PSI where 1000 ft. coils may weigh up to 950 lbs.  The use of a wooden reel allows easier handling of these heavy pipes yet eliminates the need for joints in long sections of pipe.  Smaller coils can also be custom produced.


APPLICATION NOTES

PRESSURE RATING VS. TEMPERATURE OF ENDOT PIPE AND TUBING

All pressure ratings of Endot polyethylene pipe and tubing are for an operating temperature of 73.4oF.  Endot pipe can be used at temperatures higher than the rated 73.4oF, but the user must consider the reduced pressure capacity of the pipe.  Every 10oF. rise or fall in temperature from 73.4oF will reduce or increase the pressure rating of the pipe by approximately 12%.

ESTIMATED PRESSURE RATINGS OF PIPE

AT ELEVATED TEMPERATURE LEVELS

RATED PRESSURE OF PIPE @ 73.4 °F

TEMP 100 PSI 125 PSI 160 PSI 200 PSI 250 PSI
73.4 100 125 160 200 250
80 92 115 147 183 229
90 81 101 129 161 202
100 71 89 113 142 177
110 62 78 100 125 156
120 55 69 88 110 137
130 48 60 77 97 121
140 43 53 68 85 106
150 * 37 47 60 75 94
160 * 33 41 53 66 82
170 * 29 36 46 58 72
180 * 26 32 41 51 64
           

* CAUTION:  Endot polyethylene pipe should not be used in applications where the normal, continuous operating temperature is expected to be in excess of 140oF.


APPLICATION NOTES

INSTALLATION METHODS

JOINING IPS PIPE:

Two generally accepted methods of mechanically connecting sections of IPS (ASTM D2239) and CTS (ASTM D2737) polyethylene water pipe and tubing together or joining it to other piping materials are available.  For IPS the most common method is insert fittings made from brass or PVC that seals using gear clamps.  IPS pipe and CTS tubing can be joined using external compression fittings that seal via internal gaskets and external clamping.  Insert fittings cannot be used on polyethylene water tubing (CTS) made to ASTM D2737.

The Size Comparison Chart lists the various sizes of IPS pipe made by Endot and the nominal dimensions of those sizes.  ASTM D2609 outlines the dimensional requirements for plastic insert fittings.

INSERT FITTINGS:

Use insert fittings with sufficient length to allow the application of two clamps on each side.

     Use clamps produced from all stainless steel including the screw.

     Place clamp screws 180o opposite each other.

     Be sure clamps are over the barb of the fitting and not the flat.

Do not use any lubricants, sealing compounds or pipe dope.  Use of these materials voids all warranties and may cause damage to the pipe.

Heavy walled, large diameter pipe, 160 PSI and 200 PSI and 1-1/4" and larger, require the use of brass or galvanized insert fittings and industrial type clamping devices.  For 1-1/2" and 2" ID 200 PSI pipe external compression fittings specifically designed for use with IPS pipe are strongly recommended.  External compression fittings provide an effective, reliable coupling for heavy wall, large diameter pipe.

In cold weather it may be necessary to warm the pipe in order to insert the fitting.  DO NOT USE A TORCH TO HEAT THE PIPE.  Gently warm the pipe using hot water or by storing the pipe in a warm place prior to use.


EXTERNAL COMPRESSION FITTINGS:

External compression fittings can be used on both CTS and IPS products.  Since IPS pipe is Inside Diameter controlled the external type fitting has to have sufficient tolerance to accommodate the normal and acceptable ASTM specified variations in OD.  Ease of insertion of the pipe into the fitting will vary with the normal tolerance variation of the fittings and the pipe.

It is important to specify the SIDR (or SODR) of the pipe in use when ordering external fittings.  See The Size Comparison Chart for SIDR information and for the comparison of sizes between the various resin types.  When assembling a joint using one of these fittings follow the manufacturer's directions carefully.  If the fitting manufacturer calls for insert stiffeners they must be used to insure a leak free joint.

DO NOT LUBRICATE THE PIPE

Lubrication other than water should not be used.  Use of any lubricants, sealing compounds or pipe dope voids all warranties for Endot pipe and tubing and may cause damage to the pipe or tubing.


 APPLICATION NOTES

HEAT FUSION OF ENDOT PE 3408 PIPE & TUBING

INSTALLING PIPE  AND TUBING USING FUSION WELDING:

Endot products may be joined by Thermal Heat Fusion.  Follow the tooling manufacturer guidelines carefully when joining pipe or tubing with thermal fusion.  Thermal fusion joints when properly made are as strong or stronger than the pipe itself and eliminate any flow restrictions.

HEAT FUSION TIMES FOR PE 3408 PIPE & TUBING AT A TEMPERATURE OF 500o F:

TIME IN SECONDS
SIZE
BUTT
FUSION
COOLING
TIME
SOCKET
FUSION
COOLING
TIME
CTS - ASTM D2737
3/4 " 8 - 10 50 9 - 10 30
1" 14 - 17 50 11 - 13 30
1 1/4" 16 - 19 50 14 - 16 30
1 1/2" 18 - 21 60 16 - 18 40
2" 22 - 25 60 18 - 20 40
IPS - ASTM B2239
1/2" 8 - 10 50 9 - 10 30
3/4" 14 - 16 50 12 - 14 30
1" 16 - 19 50 1 - 17 40
1 1/4" 18 - 21 70 17 - 20 40
1 1/2" 24 - 30 90 20 - 23 40
2" 30 - 34 90 24 - 27 40

CAUTION: Excessive heating times can over heat the pipe or fitting and result in brittle joints.  Shortened heating times can result in an incomplete bond of materials and a weak joint that may fail.

Endot Industries, Inc. does not recommend fusion of Endot pipe and tubing to materials of a different grade or specification or to material classified as “wide spec”.  Fusion joints between dissimilar materials may fail even when the time and temperature settings are correct.

Polyethylene pipe is chemically inert and there is no known glues that can be used to create effective joints that will stand up over long periods of time.

APPLICATION NOTES:

WARMING PIPE TO ASSEMBLE FITTINGS:

Polyethylene pipe may develop some ovality from storage and in cold weather it may be necessary to warm the pipe to enable the insertion of a fitting or the assembly of a compression fitting.  To warm polyethylene pipe DO NOT USE A TORCH TO HEAT THE PIPE and never heat the plastic above 2000 F.  The recommended method for warming the pipe is immersion in hot water or warming with a hair dryer.  Use care to warm the inside of the pipe was well as the outside, never heat the outside of the pipe only.

Polyethylene does not become brittle when subjected to extremely low temperatures, but does become much stiffer.  The workability of polyethylene increases with higher temperatures. The heavier the wall thickness of the pipe or tubing being used the more stiffness will be encountered in cold weather.  It is recommended that the pipe or tubing be kept in a warm environment prior to installation outdoors in the winter months to keep it as flexible as possible.

LUBRICATION AND SEALING COMPOUNDS:

The use of any type of lubricant including detergent or soap lubricants to ease the insertion of the pipe or tubing into a fitting voids all warranties on the pipe.  Detergents, soap and surfactants may cause stress cracking in polyethylene and should never be used.

Endot does not recognize any pipe dope or sealing compound as acceptable for use with Endot polyethylene pipe or tubing, regardless of manufacturer's claims.  All pipe sealant and dope may cause stress cracking in polyethylene and should never be used.

The use of any pipe dope or sealing compound voids all warranties.


APPLICATION NOTES

SITE PREPARATION:

When polyethylene pipe or tubing is to be installed in a trench site preparation is important.  Pipe must be surrounded with a bed of sand or other backfill material that is 1/2" or less in diameter and is free from rocks, sharp objects and debris that might puncture the pipe. 

The base of the trench must be lined first with sand and the pipe uniformly and continuously supported for its entire length.  Pipe should be placed at a depth at least 12 inches below the local frost line and a minimum of 18 inches below the finished surface grade for light loading and at least 24 inches for sites with heavy loading.

Trenches may be curved to avoid obstacles with the minimum trench radius being 24 inches.  Polyethylene's natural flexibility allows it to be routed around objects to eliminate fittings.

ASTM D2774 and ASTM D2321 cover the installation and site preparation for polyethylene pipe and tubing in detail and should be followed by installers.  Check with you local code officials to determine specific local requirements.

THERMAL EXPANSION AND CONTRACTION:

Polyethylene is stable in its cross section dimensions, but can expand and contract longitudinally with changing temperatures.  Allowing polyethylene pipe to naturally "snake" in a trench will provide adequate slack to compensate for this expansion and contraction.  A minimum 12 inches of slack per 100 feet of pipe must be allowed to compensate for thermal changes.

INSTALLATION IN CONTAMINATED SOILS:

Hydrocarbon fuels, certain organic solvents and a few other chemical compounds can have a serious negative effect on polyethylene if present in sufficient quantity.  Water carried in any piping system is vulnerable to contamination by absorption of chemicals through the walls or joints.  Water lines produced from any material should not be installed in areas when known chemical contamination is present or if chemical spills are likely to occur.  See a chemical resistance chart to determine if a particular chemical has any negative effects on polyethylene pipe and tubing.

PRESSURE TESTING OF INSTALLATIONS:

All installations must be pressure tested prior to backfilling.  Check all joints and connections for leaks before backfilling the trench.  ASTM D2774 and The Plastic Pipe Institute technical reference #TR-31/88 provides detailed testing information.  Pressure tests must be made using water, Do Not pressure test with air.

It is the users responsibility to select the proper fitting and to ensure the assembly is correct and leak tight.  All joints must be pressure tested prior to backfilling.  Endot assumes no liability for the improper installation of any fitting nor the failure to test the joint prior to backfilling a trench.


APPLICATION NOTES

INSTALLING PIPE USING DIRECTIONAL BORING EQUIPMENT:

Endot pipe and tubing may be installed using directional boring equipment.  The boring tool should create a hole that is 25% larger than the outside diameter of the pipe or tubing to allow the pipe to pass through the soil without being abraded or subjected to excessive tension.  All bends and changes in elevation should be within the guidelines established for polyethylene pipe and tubing.

Pipe or tubing installed with directional boring equipment must not be subjected to tensions greater than the tensile strength of the product being used.  Excessive tension can cause damage to polyethylene pipe.  The nominal tensile strength of 200 PSI, PE 3408, 3/4" and 1" pipe (IPS) and tubing (CTS) is as follows;

 

                  ASTM D2239 Pipe (IPS)         ASTM D2737 Tubing (CTS)

                       3/4"         1200 PSI                              800 PSI

                       1"           1900 PSI                               1300 PSI

In some soils it may be necessary to grout the bore hole to prevent collapse prior to installation of the pipe.  Grouting will maintain the hole and reduce friction that could damage the pipe.

Endot will not be responsible for damage to the pipe when boring takes place in soils that do not maintain a open hole during pipe installation or that contain sharp rock or debris that cut or scrape the pipe causing damage that may reduce the wall thickness.

NOTE:  Pipe laying in sun light can increase significantly in temperature often to temperatures as high as    140o F.   If pipe is bored at elevated temperatures it is possible that the pipe will stretch or elongate.  If the pipe stretches greater than 5% the pipe is damaged and may not be capable of carrying it’s rated pressure.  Endot will not warranty pipe that has been stretched greater than 5%.


APPLICATION NOTES

WELL PIPE INSTALLATION:

Polyethylene pipe is an ideal product for use in both deep and shallow well applications.  See the Depth Setting Chart for a guide to the depth settings that various grades of pipe can be used at.  Although claims for deeper settings have been made they exceed the design ratings for all Polyethylene pipe and the installer risks rupturing the pipe if the pressure developed by the column of water and the pump pressure exceeds the pressure rating of the pipe.  No warranty claims for depths greater than those listed will be honored.

The actual installation includes the use of insert fittings and stainless steel clamps as previously covered.  Torque arrestors and centering devices should be used to prevent the pipe and wires from rubbing the well casing.  The installation of torque arrestors and other well hardware should be per the manufacturer instructions.  If the pipe has a submersible pump suspended on it a safety rope must be installed to assist in pulling the pump.  When a long length of pipe is pulled from a well care must be taken to prevent kinking of the pipe.  The maximum bend radius of polyethylene pipe is 18 inches.  If the pipe is kinked the section must be removed since a weak point has been created at the kink.

OTHER USES:

Polyethylene pipe and tubing is used in many other applications.  Lawn Irrigation is one of the more popular uses.  Generally the pipe is plowed into the ground without preparing a trench.  This method works well if the soil is free of rocks and other sharp objects.  The denser the soil the more difficult this method of installation can become due to the increased tension placed on the pipe.  The use of heavier walled pipe can overcome some of these problems.

High Density Polyethylene is a very stable plastic compound allowing the use of pipe manufactured from it to be used in numerous applications.  Before attempting to use polyethylene in applications other than for transport of water one should check with an knowledgeable source to determine if the product is suitable. 

Certain chemicals may soften polyethylene and can degrade its ability to withstand internal pressure.  If the polyethylene pipe is to be used to transport chemicals or chemicals are present in the pipe environment it is the responsibility of the user to determine if the chemicals are compatible with polyethylene pipe.


SPECIFICATIONS FOR PE 3408 - ENDOPOLY PIPE AND TUBING

Endot "Endopoly - PE 3408" pipe and tubing is produced to the following specification and accepted by the following code authorities;

     
ASTM D3350 - Cell Classification   345444C
ASTM D1505 - Density   0.944 g/cc
ASTM D1238 - Melt Index   >15.0 g/10 min.
ASTM D638 - Tensile Strength   >3300 PSI
ASTM D2837 - Hydrostatic Design Basis   1600 PSI @ 23oC
ASTM D 790 - Flexural Modulus   120,000 PSI
ASTM D 746 - Brittleness Temp   < -180oF
ASTM D1693 - Environmental Stress Crack Resistance Test Condition C   >5000 hours
ASTM F1473 - PENT (hours)   10

** Test discontinued because no failures were indicated.

Thermal Expansion Contraction:
                 The coefficient of expansion of PE is .00007 inch/inch/oF
                 Or Approximately 1.7 inches/10of/200 feet of pipe

Other Specifications and Code Acceptance:
                 AWWA C901
                 BOCA
                 National Sanitation Standard 14

LOCAL BUILDING CODES:
Application Notes are supplied with the intention of advising the user of Endot Polyethylene Pipe and Tubing of the proper methods of use and installation.
It is the users responsibility to be sure the installation meets local building codes prior to beginning work.
If unsure of applicable codes check with your local code official.

For further information or assistance in selecting or using polyethylene pipe and tubing contact Endot Industries, Inc., 60 Green Pond Road, Rockaway, NJ 07866, 201-625-8500 or 800-443-6368.


SPECIFICATIONS FOR PE 3408 - ENDOPURE PIPE AND TUBING

Endot "EndoPure - PE 3408" pipe and tubing is produced to the following specification and accepted by the following code authorities;

     
ASTM D3350 - Cell Classification         Raw Material   345444A
                                                         Final Product   345444D
ASTM D1505 - Density   0.944 g/cc
ASTM D1238 - Melt Index   >15.0 g/10 min.
ASTM D638 - Tensile Strength   >3300 PSI
ASTM D2837 - Hydrostatic Design Basis   1600 PSI @ 23oC
ASTM D 790 - Flexural Modulus   120,000 PSI
ASTM D 746 - Brittleness Temp   < -180oF
ASTM D1693 - Environmental Stress Crack Resistance Test Condition C   >5000 hours
ASTM F1473 - PENT (hours)   10

 

** Test discontinued because no failures were indicated.

Thermal Expansion Contraction:

                 The coefficient of expansion of PE is .00007 inch/inch/oF
                 Or Approximately 1.7 inches/10of/200 feet of pipe

Other Specifications and Code Acceptance:
                 AWWA C901
                 BOCA
                 National Sanitation Standard 14

LOCAL BUILDING CODES:
Application Notes are supplied with the intention of advising the user of Endot Polyethylene Pipe and Tubing of the proper methods of use and installation.
It is the users responsibility to be sure the installation meets local building codes prior to beginning work.
If unsure of applicable codes check with your local code official.

For further information or assistance in selecting or using polyethylene pipe and tubing contact Endot Industries, Inc., 60 Green Pond Road, Rockaway, NJ 07866, 201-625-8500 or 800-443-6368.

APPLICATION NOTES

SPECIFICATIONS FOR PE 3406

Endot "GOLDEN JET, SUPER GOLDEN JET,  BLACK DIAMOND - PE 3406" pipe and tubing is produced to the following specification and accepted by the following code authorities;

     
ASTM D3350 - Cell Classification   345444C
ASTM D1505 - Density   0.955 g/cc
ASTM D1238 - Melt Index   0.32 g/10 min.
ASTM D638 - Tensile Strength   3300 PSI
ASTM D638 - Elongation   800%
ASTM D1693 - Environmental Stress Crack Resistance Test Condition C   >5000 hours
ASTM D790 - Flexural Modulus   135,000 PSI
ASTM D746 - Brittleness Temp.   < -75°C(<-103°F)
ASTM D2837 - Hydrostatic Design Basis @23°C   1600 PSI

** Test discontinued because no failures were indicated.

Thermal Expansion Contraction:
                 The coefficient of expansion of PE is .00007 inch/inch/oF
                 Or Approximately 1.7 inches/10of/200 feet of pipe

Other Specifications and Code Acceptance:
                 AWWA C901
                 BOCA
                 National Sanitation Standard 14

LOCAL BUILDING CODES:
Application Notes are supplied with the intention of advising the user of Endot Polyethylene Pipe and Tubing of the proper methods of use and installation.
It is the users responsibility to be sure the installation meets local building codes prior to beginning work.
If unsure of applicable codes check with your local code official.

For further information or assistance in selecting or using polyethylene pipe and tubing contact Endot Industries, Inc., 60 Green Pond Road, Rockaway, NJ 07866, 201-625-8500 or 800-443-6368.


APPLICATION NOTES

HEAT PUMP SYSTEMS

Endot GEOFLEX, Geothermal Pipe is an ideal product for use in Earth Coupled Heat Pump systems using either Horizontal or Vertical Loop type systems.  PE3408 polyethylene has the highest heat transfer rate of any plastic available today.  PE3408 provides exceptional chemical resistance.

GEOFLEX, Geothermal Pipe is produced from only the highest quality, NSF Certified, PE3408 polyethylene resin.  Endot products meet all the requirements established by the International Ground Source Heat Pump Association (IGSHPA) for Earth Coupled Heat Pump installations as follows;

                 ASTM D3035 for dimensions
                 ASTM D3350 for materials with a cell classification of PE34544C

NOTE: All material used for Endot GEOFLEX, Geothermal Pipe is virgin (prime) polyethylene.  Wide Spec. or Regrind material is specifically prohibited.

Endot GEOFLEX is ideal for Heat Pump Installation.
Can be joined using standard Thermal Heat Fusion methods, proven
  to be the most trouble free joining system available.
Permanently indented for easy Lifetime identification.
Capped at the factory to prevent entry of dirt and debris.
Corrosion Resistant - Endot/Yardley pipe is nearly chemically inert and provides a system with exceptional longevity.
Superior Flexibility for ease of installation.
Available in extra long lengths for joint free installations.
Endot products carry a Lifetime Warranty with a 25 year cost of replacement. (See Warranty Sheet for details)

Custom coil lengths of up to 1500 feet are available.  Lengths of up to 7500 feet can be packaged on wooden reels.  Extra long lengths allow installations without joints or fittings.  Parallel lengths can be packaged into one coil for Vertical Loop Systems.  Contact the factory for information on special packaging.

Contact your local Heat Pump Contractor for design and installation information.

APPLICATION NOTES

RADIANT HEATING

Endot polyethylene (PE) pipe is a versatile product that can reduce the cost of radiant heating installations and produce a system superior to metal piped systems.

CORROSION RESISTANCE:  Endot PE pipe is nearly chemically inert and provides a system with exceptional longevity.

INSTALLATION EASE:  Endot PE pipe is lightweight, flexible and available in extra long continuous lengths for faster, joint free installations.

TOUGH AND DURABLE:  Endot PE pipe can endure the punishment of the most demanding installation.  Produced from the highest quality polyethylene resins available Endot/Yardley pipe can be installed in concrete and under floors with confidence it will perform for many years.

SUPERIOR FLEXIBILITY:  Endot PE pipe can be installed in long continuous lengths and PE3408 coiled pipe can be cold bent to a minimum radius of 10 to 20 times the nominal pipe diameter to provide for contouring to installation conditions.  Ordinary shifting and settling of soil will not fracture or shear the pipe.

LIFETIME WARRANTY:  Backed by one of the strongest warranties in the industry, Endot products carry a lifetime warranty with a 25 year cost of replacement guarantee.

TYPICAL RADIANT HEATING APPLICATIONS:
                 Snow Melting Systems
                 Livestock Building floor heating
                 Sports Field Heating to extend playing seasons.

Radiant Home Heating. (for systems with constant operating temperatures of under 120oF)
Corrosion inhibitors must be used when plastic pipe is installed in a radiant heating system.  Consult Endot Temperature vs. Pressure Chart before selecting a pipe for radiant heating systems.
Consult your local plumbing and heating contractor for design and installation specifics.


APPLICATION NOTES

ICE SKATING RINKS

Polyethylene (PE) pipe is a cost effective product for use in the construction of ice skating rink freezing systems.  PE is up to 5 times less expensive than steel pipe and eliminates the need for costly skilled labor to weld numerous joints.  The labor savings using PE can be up to 75% of a steel pipe installation.

PE can be produced in extra long coils of up to 1000 feet or on wooden reels of up to 7500 feet thus eliminating joints and further reducing installation cost.  The total time of installation can be reduced when using PE due to PE's light weight and flexibility.

PE is abrasion resistant and can be encased in a concrete or sand base with no concern as to corrosion or other damage.  Care in handling must be observed during shipping, storage and installation to prevent punctures from sharp objects.

PE is nearly chemically inert and is suitable for use with brine and ethylene glycol solutions.  See the Chemical Resistance Chart for details on specific chemicals.

The Heat Transfer Coefficient K Value for High Density Polyethylene is 0.26.  (BTU/hr/oF/f2/f)

INSTALLATION SUGGESTIONS

Inspect all pipe prior to installation for damage such as kinking, cuts or abrasions.  Do not use pipe that is damaged.

The base upon which the pipe will be installed should be uniform, smooth and free of sharp objects.

If insert fittings are used they should be located outside of the actual ice area for ease of service.  Long lengths of pipe facilitate this method of installation.  All clamps must be stainless steel and two clamps should be used on each side of a fitting.  (See Joining Pipe with Insert Fittings)

Pipe can also be joined using thermal fusion for even greater reliability.  Follow the fusion equipment instructions carefully.

Installed pipe must be protected from damage prior to embedment.  Do not allow wheelbarrows and other equipment to travel over the exposed pipe.

The entire system must be pressure tested with water to 150% of system working pressure prior to embedment.  DO NOT PRESSURE TEST WITH AIR.


APPLICATION NOTES

PRESSURE DROP IN ENDOT EndoPure IPS PIPE

PRESSURE DROP PER 100 FEET CALCULATED FOR WATER FLOW


APPLICATION NOTES

COMPARISON WATER FLOW CHARACTERISTICS

IN EndoPure PIPE & TUBING

PRESSURE LOSS: PSI/100 FT.


APPLICATION NOTES

CONCRETE SLAB INSTALLATIONS & RADIANT HEATING

Endot polyethylene (HDPE) pipe and tubing are versatile products that are ideal for installing potable water systems and radiant heating systems especially when these systems are installed in a concrete slab.  Using HDPE will provide a system that is superior to metal piped systems.

The primary advantage of HDPE pipe or tubing in a concrete slab installation is CORROSION RESISTANCE.  Concrete is a highly alkaline material and this alkalinity will rapidly corrode copper pipe and tubing whereas HDPE is unaffected by this alkalinity.  Endot PE pipe is nearly chemically inert and provides a system with exceptional longevity.  (See Chemical Resistance Chart)

INSTALLATION EASE:  Endot HDPE pipe is lightweight, flexible and available in extra long continuous lengths for faster, joint free installations.

TOUGH AND DURABLE:  Endot HDPE pipe can endure the punishment of the most demanding installation.  Produced from the highest quality polyethylene resins available Endot pipe can be installed in concrete and under floors with confidence it will perform for many years.

SUPERIOR FLEXIBILITY:  Endot HDPE pipe can be installed in long continuous lengths and PE3408 coiled pipe can be cold bent to a minimum radius of 10 to 20 times the nominal pipe diameter to provide for contouring to installation conditions.  Ordinary shifting and settling of soil will not fracture or shear the pipe.

SUPERIOR CRUSH RESISTANCE:  Endot PE pipe is extremely strong and will withstand high load conditions without fear of collapse or damage. 

LIFETIME WARRANTY:  Backed by one of the strongest warranties in the industry, Endot EndoPure carries a Lifetime Warranty with no replacement limit,  Endot Endopoly products carry a lifetime warranty with a 25 year cost of replacement guarantee.

TYPICAL RADIANT HEATING APPLICATIONS:
                 Potable Water Service Supply
                 Snow Melting Systems
                 Livestock Building floor heating
                 Sports Field Heating to extend playing seasons.

Radiant Home Heating. (for systems with constant operating temperatures of under 120oF)
Corrosion inhibitors must be used when plastic pipe is installed in a radiant heating system.  Consult Endot Temperature vs. Pressure Chart before selecting a pipe for radiant heating systems.

Consult your local plumbing and heating contractor for design and installation specifics.


APPLICATION NOTES

FORCE MAIN SEWER SYSTEMS

Endot polyethylene (HDPE) pipe and tubing are versatile products that are ideal for transport of waste water and sewage in force main sewer systems.  Using HDPE will provide a system that is superior to metal piped systems.

HDPE pipe and tubing is pressure rated and able to handle the pressure of grinder pumps.

Endot HDPE pipe is nearly chemically inert and provides a system with exceptional longevity.  (See Chemical Resistance Chart)

INSTALLATION EASE:  Endot HDPE pipe is lightweight, flexible and available in extra long continuous lengths for faster, joint free installations.

TOUGH AND DURABLE:  Endot HDPE pipe can endure the punishment of the most demanding installation.  Produced from the highest quality polyethylene resins available Endot pipe can be buried with confidence it will perform for many years.

SUPERIOR FLEXIBILITY:  Endot HDPE pipe can be installed in long continuous lengths and PE3408 coiled pipe can be cold bent to a minimum radius of 10 to 20 times the nominal pipe diameter to provide for contouring to installation conditions.  Ordinary shifting and settling of soil will not fracture or shear the pipe.  Handling on the job site is not as difficult as PVC and other products that can be brittle and subject to breakage if dropped or accidentally hit by equipment.

SUPERIOR CRUSH RESISTANCE:  Endot PE pipe is extremely strong and will withstand high load conditions without fear of collapse or damage. 

LIFETIME WARRANTY:  Backed by one of the strongest warranties in the industry, Endot EndoPure carries a Lifetime Warranty with no replacement limit,  Endot Endopoly products carry a lifetime warranty with a 25 year cost of replacement guarantee.