THE FUTURE OF ISOLATION

Patent pending PCT/US2018/016011

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INDUSTRY CHALLENGES

CHALLENGES

Despite renewable energy growth, consumer needs continue
to drive oil and gas consumption. To meet these demands, oiland gas companies have implemented technologies such as
EOR (enhanced oil recovery) and hydraulic fracturing to obtain
oil and gas from fields once thought to be exhausted or too
costly to access. These efforts have been very successful,
but are now exposing pipelines and isolating gaskets tohigher concentrations of H2S, steam, CO2 and CO as well as
higher pressures and temperatures.

SOUR GAS
Sour gas makes up more than 40% of theworld’s gas reserves according to theIEA (International Energy Agency).

CHANGING TIMESAs oil and gas are extracted from deeper wells and withhigher pressures, temperatures, steam, H2S, CO2 and CO,
glass reinforced epoxy (GRE) isolation gaskets are being
attacked. G-10 and G-11 are greatly affected by H2S as theconcentration increases. CO2 and CO permeate through thematrix of the GRE.

Steam attack on GRE isolation gasket

STEAM
Steam enhanced oil recovery (EOR)
projects accounted for 417,675 barrelsof oil per day (BOPD), or 56% of thetotal for all tertiary enhanced recovery
methods.
TEMPERATURE & PRESSURE
HP/HT wells and UHP/UHT (High Pressureand High Temperature and Ultra High
Pressure and Ultra High Temperature)
are on the rise. This reduces the numberof isolating products that can be used toisolate and seal the flanged connection.
TOTAL COST OF INSTALLATION
Doing more with less - 440,000 jobs
have been cut globally throughout the oiland gas production industry. With fewer
resources, getting it right the first time
has never been more important. Installation
errors account for 81% of gasket failures.

EMISSIONSThe Clean Air Act provides some of themost widespread regulatory authoritythat affects the industry. In recentyears, revisions to the Ozone National
Ambient Air Quality Standard, EPA methane
regulations, and BLM venting/flaring regulations,have openly targeted oil and gas production.
Chemical (H 2 S) attack on GRE isolation gasket

This coupled with an increase trend forsustainable energy methods such as Hydrogenand Carbon Capture(CCUS).

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EVOLUTION® | The Future of Isolation

EVOLUTION ® COMES FROM A LONG LINE OF SUCCESSPIKOTEK® VCS
PTFE spring-energized face seal, or anelastomeric O-ring, seated in an insulating
laminate and permanently bonded to ahigh-strength stainless steel core.

PIKOTEK® PGE™
Incorporates patented overlapping andoffsetting seal grooves. The ⅛” (3mm)design allows for easier installation andremoval.

PIKOTEK® VCFSPTFE spring-energized primary sealing
element and an E-ring secondary seal,
seated in an insulating laminate andpermanently bonded to a high-strength
metal core, creating a firesafe gasket.

PIKOTEK® VCS-ID™
Concave GYLON® Inside
Diameter (ID) seal and a PTFE
spring-energized face seal, or anelastomeric O-ring, seated in aninsulating laminate and permanentlybonded to a high-strength core.

THE FUTURE OF ISOLATION - 100 YEARS IN THE MAKING
Like most things, electrical isolation has evolved since1909 when the first synthetic electrical isolator wasdeveloped. Various types of gasket designs, materials,
and configurations have been brought forth that typicallyeliminated issues that prior products couldn’t solve.
The late seventies saw the greatest leap in isolating kit
development with the introduction of the VCS gasket
that provided higher pressure capabilities and strength
over earlier LINEBACKER® phenolic and GRE isolatingproducts. Since then, variations of the VCS have beendeveloped to overcome limitations that were inherent
within the VCS design.

The VCFS was introduced to give all of the benefits of a VCS
gasket, but to add fire safe operation to the isolation. TheVCS-ID gave a PTFE barrier of protection to the traditional
VCS design so that the GRE (glass reinforced epoxy) would
be protected from the increasing number of chemicals andsteam in oil and gas pipelines. High temperature isolation
gaskets were developed for oil and gas pipelines where
G-11 was not rated thermally. All products worked well,
but forced users to potentially utilize a number of different
products to successfully isolate their system.

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EVOLUTION®, the best available technology for pipeline
isolation, incorporates all of these benefits into one
complete and robust package. EVOLUTION®is a patentpending product that is the first of its kind to be a fully
encapsulated isolating gasket. The thinner, ⅛” (3mm)design minimizes the difficulties often encountered
while attempting to install thicker isolating gaskets. The
total encapsulation allows the gasket to be hydro-tested
and kept in the pipeline with virtually no loss in isolation
properties. The coating is a GPT proprietary material thatis extremely abrasion and impact resistant. The coating is
also chemically resistant to attack by H2S, steam, CO, CO 2and other chemicals often found in oil and gas pipelines.

EVOLUTION® has passed API 6FB fire testing in multiple
sizes and pressures and has a considerable increase inoperating temperature over GRE products.
It also has a number of other advantages over traditional
GRE laminated products. Since EVOLUTION® has nolaminations, it’s able to withstand high pressures withno ill effects unlike GRE gaskets which are prone todelamination. Furthermore, EVOLUTION® does not havethe permeation issues that plague GRE gaskets.

FEATURES AND BENEFITSID Seal» Chemical resistance - remarkable resistance to typicaloil and gas chemicals, in particular H2S, CO & CO 2
» Isolates after hydro-testing - eliminates the needto replace the gaskets following hydro-testing,
EVOLUTION™ will isolate after hydro-testing

PROPRIETARY COATING

Fully Encapsulated (⅛” (3mm) Retainer)» No permeation - the unique design results in nopermeation, a problem that plagues conventional glass
reinforced epoxy (GRE) isolations gaskets» Easy installation - thinner design (⅛” (3mm)), minimizing
the difficulties often encountered when attempting toinstall thicker isolating gaskets
Proprietary Coating» High dielectric strength» 1,400 volts/mil min» Eliminates exotic cores - fully encapsulated coating
prevents the need for expensive exotic cores» Extreme temperature- rated to Minimum -300°F/-184°C
Maximum 500°F/260°C*

GYLON® ID SEAL

316LSS CORE
INCONEL 718 C-RINGInconel C-ring» Pressure classes available: 150# - 2500# and up toAPI 15K» Fire safe - provides the added security of knowing thatrdthe gasket has passed the API 6FB, 3 Edition Fire Test » Size range available: ½”NPS to 36” NPS» High pressure - highest pressure rating of any isolating » * Some smaller diameter sizes, EVOLUTION® may be suppliedwith C-ring onlygasket*NOTE: Temperature rating is for gasket only or when used withMica sleeves/washers.

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EVOLUTION® | The Future of Isolation

As with many GPT high pressure isolation gaskets, EVOLUTION®
» Has pressure energized seals» Is built to match pipe bore
» Has a patent pending ID seal
» Is unaffected by moisture or humidity» Has a built in fire safe metal seal
» Has zero creep relaxation

COATED C-RING TECHNOLOGY
The high level of recovery for a metallic c-ring is designed
to give EVOLUTION® the ability to withstand extreme
temperature swings in the flange. C-rings are provento offer greater sealing capabilities than any other seal
offered in an isolation gasket to date.
FIRE SAFETY
With the focus on improving and increasing joint integrity
the importance of fire safety has become a standard
requirement across elements of the oil and gas industry.
EVOLUTION® will provide a fire safe seal that is tested
comprehensively to API6FB as a standard in all ourisolation kits.
ZERO PERMEATIONThe standard GRE operates using a leak to sealtechnology and has provided a high level of isolationand sealing. However, as operators drill deeper andenhanced recovery techniques become the norm,
more aggressive medias in pipelines will result in GRE
becoming increasingly vulnerable to attack and fasterrates of degradation over time. We have encounteredexamples of attack on joints from higher H2S and CO 2
applications, which drove the imperative of meeting theneeds of the future with EVOLUTION®. This product has
been tested exhaustively in sour media tests that haveresulted in no permeability and no degradation which willmeet the industry needs.
EMISSIONSThe EVOLUTION® gasket has the lowest emission values
for any pipeline seal available in the market today. With
the demands being placed on the oil and gas industry toimprove leakage rates, the increased levels of tightness
achieved will exceed those demands and give greater
joint integrity.

THINNER SEAL
To date, most isolation products above Class 600
pressures are a minimum of .250”/6mm thick. This causes
issues for installation where pipeline systems are designed
for .125”/3mm make up distances or have misaligned
flanges with little gap. Regularly, thicker gaskets can bedamaged by the gasket being forced into the thinner gap.
We designed EVOLUTION® to be a .125”/3mm gasket tomeet your requirements and be installed into pipeline
systems with greater ease.
EXOTIC METAL USAGE
The presence of aggressive medias often require exotic
materials of construction for pipelines and associatedequipment. Existing metal cored isolation kits are
therefore requested with exotic metallurgy cores which
has a negative impact on the purchasing and shippingcost. EVOLUTION® is fully coated and does not require an
exotic core because there is no exposed metal. Therefore,
the medias will never come into contact with any metal,
making EVOLUTION® a lower cost, fire safe alternative to
exotic cored isolation kits.

Due to its extreme tightness, EVOLUTION® is a viablesealing solution for the transportation of GHG’s (Methane,Halogens & C02) hydrogen, and LNG applications.

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EVOLUTION® | The Future of Isolation

PROPRIETARY COATINGThe proprietary coating has been formulated by GPT specificallyfor use in tough pipeline installations and is unique to the pipeline
industry. Successful abrasion, scratch, and impact testing has
confirmed that this product can handle the rigors of a typicalinstallation. Chemical exposure testing of the coating in H2S, steam,and CO 2 prove that this material is a significant technological leap
versus traditional GRE type isolation gaskets.

COMMON EVOLUTION® MATERIAL PHYSICAL PROPERTIESASTMTest Method

D149

Dielectric Strength Volts/Mil (Short Time)

1,400

D229/D570

Water Absorption (%)

0.03%

ASTM D4060

Taber Abrasion> 1 G Ohm @ 1000 VDC

Abrasive Wheel: CS-17
Load: 1000 g
Number of Cycles: 5000
Platform Rotation: 72 RPM

Typical Values

Mass Loss [mg] 56
Taber Wear Index 11.3
Tensile Strength gasket (psi)70,000Tensile Strength Dielectric Material (psi)24,000*Temperature Range °F/°CMinimum -300°F/-184°C **Maximum 500°F/260°C
B117

Salt Spray Resistance @ 5% salt solution with no red rust(hrs)

2,000*NOTE: With mica sleeves/washers only. Standard kit is with G-11 sleeves and washers with a temperature rating of 392°F/200°C. For
temperatures up to 770°F/410°C, please use our VCXT isolation gasket.
** NOTE: All component materials are rated for -300F or lower. Assembly inert media exposure testing down to -277F.
Assembly functional testing down to -50C.

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EVOLUTION® TEST RESULTS
TestValueCompression Test - EN 13555 @ 260°C

180 MPa (EG)Creep Relaxation Factor PQR(TP) - EN 13555 @ 260°C

1.00

Hot Blowout Test - HOBT @ 260°C @ 62.3 bar

No Blowout

Shell Leakage Test - MESC SPE 85/300-3.3.2 @ ambient @ 81.9 MPa (gasketstress) @ 51 bar (test pressure)

6.48x10^-12 PA-m^3/s/mm Tightness Class A

Shell Leakage Test - MESC SPE 85/300-3.3.2 @ 260°C @ 81.9 MPa (gasket stress)@ 42 bar (test pressure)

3.08x10^-8 PA-m^3/s/mm Tightness Class B

Shell Cycle Test - MESC SPE 85/300-3.3.2 @ 260°C @ 81.9 MPa (gasket stress) @<0.1 bar (pressure drop)<0.1 bar (pressure drop)

EVOLUTION™ ISOLATION KITS & KITTINGSLEEVES - each kit contains one G-11 sleeve per bolt. The sleeve
length is the combined thickness of the flange, plus raised faceor RTJ height, plus gasket, plus three washers. The wall thickness
is a nominal 1/32” (.08mm) thick.
G-11 is a higher temperature sleeve material meeting orexceeding NEMA G-11 requirements. The product is a highstrength sleeve capable of withstanding moderate side-loading
while resisting fractures during installation.

Temperature rating:

392°F/200°C

Water absorption:.2%

Flex strength:

80,000 psi

Tensile strength:

43,000 psi

Compressive strength:(.5”) : 63,000 psi

Breakdown voltage:(.062”) : 60,000 volts

NOTE: All values are for G-11 sleeves

WASHERS - each kit includes four DIAMOND-HYDE™ coatedHCS Stainless Steel Washers per stud which are more abrasion
resistant and stronger dielectrically than the older generation
isolation washers. Rated from -50°F/-46°C to +425°F/218°C,
DIAMOND-HYDE™ provides long life and superior electricalperformance. DIAMOND-HYDE™ coated HCS Washers provide
a chemically resistant barrier. The isolating washer can be theweakest link in a flange isolating kit. By using DIAMOND-HYDE™
coated HCS Washers, the washer is extremely impervious tocracking, chipping, or scratching. The product has successfully
passed API 6FB fire testing. The washer ID has a custom diameterto accommodate the sleeve wall thickness.
To specify EVOLUTION® please find specification at www.
gptindustries.com
NOTE: FNOTE: For higher temperature applications up to 500F/260C,
please order MICA sleeves and DH washers

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EVOLUTION™ QUALITY ASSUREDPERFORMANCE TESTING» API 6FB Fire
» API PR2
» Bend*» Blowout - (Hydro)» Chevron fugitive emissions» Coating compression» Explosive decompression*» Sealability» Sour gas aging*» VDI 2200
» VDI 2440 - (TA Luft)» DIN EN 13555» HOTT» HOBT» 10 EN 13555» ASTM F37 Part B» ASTM F 607» Electrical Isolation

COATING» Abrasion» Adhesion» Cross-cut adhesion» Scratch» Taber abrasion

ELECTRICAL» ASTM D149
» Electrical VAC breakdown» Electrical VDC resistance

ENVIRONMENTAL» Salt fog spray» Steam immersion*» Sweet & sour gas» UV*

SHELL TAT TESTING*NOTE: Tests are in progress

MADE IN USA

SAFETY CULTURE

The EVOLUTION™ gasket, sleeves and washers
are manufactured and assembled in the USA
at our Denver, Colorado plant.

Safety is the foundational objective of everything we do.
Our products and services improve efficiency, reduce
maintenance and increase profitability, but none of thatmatters if our products are not first keeping people safe.
Safety is not just built into the products we engineer, either.
As part of the EnPro family of companies, we are ranked as
one of the safest workplaces in America. We practice what
we preach, and our commitment to keeping our employees
safe is just one of the ways you can trust our dedication tokeeping your’s safe, too.

PROUDLY
MADE IN THEUSAOUR COMMITMENT TO YOUGarlock Pipeline Technologies is dedicated to innovating
and introducing the best products for sealing, connecting
and protecting the world’s pipelines. Our desire to be thesupplier of choice for the pipeline industry is exhibited
through our commitment to employing a technicallyproficient sales force, our large staff of R&D, process andapplication engineers, and our solid network of distributors.

GPT 1:30_06.2021

4990 Iris Street, Wheat Ridge, Colorado, 80033, USA
Industries

Tel: +1 303-988-1242

www.gptindustries.com

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