PLASTIC vs. STEEL. Richard G. Kraft – VP Sales Marketing Endot Industries, Inc. Past Chair Energy...
If you can't read please download the document
PLASTIC vs. STEEL. Richard G. Kraft – VP Sales Marketing Endot Industries, Inc. Past Chair Energy Piping System Division of Plastic Pipe Institute (PPI)
Richard G. Kraft VP Sales Marketing Endot Industries, Inc. Past
Chair Energy Piping System Division of Plastic Pipe Institute (PPI)
Past Chair of Conduit Division of PPI 26 Years with Endot
Slide 3
Endot Industries, Inc. Producers of Polyethylene (PE) Gas Pipe,
Water Pipe & Telecom Conduit
Slide 4
Endot Industries, Inc. 40 years producing HDPE pipe and tubing
Headquarters in Rockaway, NJ 3 Operating Plants, NJ, TN &
OK
Slide 5
Endot Industries, Inc. 24 Extruders in 3 Locations NJ TN OK
through 12 Producing Gas Pipe & Tubing Water Pipe Geothermal
Loops Fiber Optic Conduit Electrical Conduit
Slide 6
APPROVED or PRODUCING PIPE FOR: PSE&G UGI NEW JERSEY
NATURAL GAS YANKEE GAS WASHINGTON GAS DOMINION GAS NATIONAL GRID
CON EDISON (NYC)
Slide 7
Slide 8
Slide 9
Slide 10
PLASTIC POLYETHYLENE vs. STEEL
Slide 11
Polyethylene was first synthesized accidentally in Germany 1898
The first practical industrial synthesis was discovered in England
in 1933 In 1939 this process was developed into a reproducible
basis for industrial production
Slide 12
POLYETHYLENE (PE) is a Thermoplastic consisting of long
hydrocarbon chains PE is very similar to candle wax and a simple
resin consisting of Carbon and Hydrogen PE has excellent chemical
resistance even to low levels of oxidizers such as chlorine
Slide 13
CAST IRON Installed beginning in the 1830s. Cast iron pipe is
well past its prime and should be replaced CAST IRON Short pieces
of pipe multiple joints now leaking aging out and getting brittle
BARE STEEL corrosion issues with bare steel are cause for concern
with increasing potential for leaks, this pipe too should be
replaced
Slide 14
Slide 15
Cast-iron and bare steel piping are made out of metal and
susceptible to corrosion and rust. This aging infrastructure is
causing undetected cracks and holes from which gas can leak. 85,000
miles of aging cast-iron and bare-steel gas pipes still operating
in U.S. communities Most of the cast iron mains are in the
Northeast. EARLY GAS PIPE SOLUTIONS
Slide 16
POLYETHYLENE THE SOLUTION In the late 1960s the DuPont Company
invented Aldyl pipe material according to Jana Labs - Aldyl was a
brilliant invention to fix a problem afflicting the gas
distribution industry. That problem was metal pipe corrosion, and
Aldyl, being a Medium Density Polyethylene (MDPE), eliminated the
corrosion problem.
Slide 17
POLYETHYLENE THE SOLUTION Polyethylene has a benefit that only
plastics can provide A Joint Free system using Fusion Fusion joins
PE pipe at the molecular level creating one continuous pipe without
joints. Joint Free Is LEAK FREE no methane escapes addresses State
and Federal efforts to mitigate fugitive methane
Slide 18
Slide 19
POLYETHYLENE THE SOLUTION Aldyl resin was produced from 1965
into the 1980s Aldyl had issues as well unlike todays PE resins,
Aldyl had limited stress crack resistance. Older version of Aldyl
were less resistant than newer versions. The higher the stress
crack resistance the longer PE pipe will last
Slide 20
Slide 21
POLYETHYLENE THE SOLUTION MDPE resins produced from the 1980s
onward had significantly improved stress crack resistance MDPE
became the resin of choice for gas distribution piping systems
recognized by its Yellow color Gas Distribution Piping in the USA
is 95%+ PE gas pipe today
Slide 22
Slide 23
POLYETHYLENE THE SOLUTION In the 1990s a new method of
producing PE became popular BI-MODAL polyethylene Bimodal PE
provides multiple benefits over earlier PE resins
Slide 24
POLYETHYLENE THE SOLUTION Bimodal PE has a life of over 100
years Bimodal PE has stress crack resistance in excess of 10,000
hours in laboratory testing Bimodal resin reduces RCP potential
significantly
Slide 25
POLYETHYLENE THE SOLUTION Bimodal PE is mostly produced as High
Density Polyethylene (HDPE) commonly called PE4710 Bimodal HDPE as
gas pipe is black with yellow stripes Bimodal HDPE is rapidly
replacing MDPE as the resin of choice for gas distribution
Slide 26
Slide 27
POLYETHYLENE THE SOLUTION PE currently is limited to 125
maximum pressure PHMSA may soon recognize the properties of Bimodal
PE4710 resin and that pressure limit could be raised Even if the
limit is not raised PE4710 resin will allow thinner walled pipe for
higher flow rates and lower cost
Slide 28
POLYAMIDES PA-11 & PA-12 ANOTHER SOLUTION Polyamides can
handle pressure up to 200 psi Polyamides can be fused providing a
joint free, leak free piping system
Slide 29
Slide 30
Endot Industries, Inc. 60 Green Pond Road Rockaway, NJ 07866
800-44 ENDOT (800-443-6368) Rockaway, NJ - Greeneville, TN - Pryor
Creek, OK