2. 1998
• Conference: FSA Technical Symposium
Paper Title: "Evaluating Live Loading of Bolted Joints to
Improve Gasket Performance Life"
Nashville, Tennessee April 26
Abstract:
In this day and age, utilizing the most effective gasket sealing products is a
must. In previous published papers it has been discussed that flange Live
Loading has shown to be an effective method of enhancing a gasket's
length in service. This paper will evaluate four different factors: belleville
spring configuration, gasket
material, gasket thickness, & gasket stress levels. The testing protocol will
be based on an accelerated thermal cycling steam test that includes
intervals of extreme thermal shock to simulate a rapid cooling process.
This testing will result in a comprehensive information matrix of overall
gasketing performance with and without liveloading.
3. 2000
• Conference: AOV Users Group Summer
Meeting
Paper Title: "Chesterton Mechanical Packing
Friction Testing"
Cleveland, Ohio August 15th
The paper was given at the AOV summer meeting
regarding initial valve packing friction testing.
4. 2002
• Conference: AOV Users Conference
Paper Title: "Valve System Management
Software"
Clearwater, Florida January 9th
• This paper was an overview of the Valve
Wizard software program in respects to
Nuclear Power.
5. 2004
• Conference: AOV Users Conference
Paper Title: "AOV Valve Packing – Where it fits into the entire AOV
Program Puzzle"
Myrtle Beach, South Carolina January 14th
• ABSTRACT
• In today’s nuclear power world AOV performance is a key part of reducing
maintenance problems. AOV Valve Packing directly relates to the
effectiveness of an AOV Program at a plant and maintenance resources.
This paper will focus on detailed examples of where new technology AOV
valve packing is assisting plants in reducing their maintenance headaches.
This paper will focus on low friction packing technology that can bring a
valve into an operability window without sacrificing sealablity and
creating chemistry issues.
• Also discussed are examples of the importance of maintenance training in
regards to a successful AOV packing program. This would include packing
consolidation and the misuse of stem lubricants to mask packing friction.
6. 2004
• ISA Regional Conference
Paper Title: "AOV Valve Packing – Where it fits into the entire AOV
Program Puzzle"
Baton Rouge, Louisiana June 18th
ABSTRACT
• In today’s modern Industry AOV performance is a key part of reducing
maintenance problems. Valve packing selection directly relates to the
effectiveness of any plant’s AOV Program and could result in an enormous
consumption of maintenance resources. One of the topics will focus on
detailed examples of new AOV valve packing technology developments
that have assisted plants in the reduction of maintenance headaches.
• Another area of concern, which will be addressed, is the implementation
of good maintenance principles in an AOV program. This will include
packing consolidation procedures and the possible misuse of stem
lubricants to mask packing friction. Today it is important to utilize low
friction packing technology to allow a valve into an operability window
without sacrificing sealability and creating chemistry issues.
7. 2004
• American Nuclear Society Utility Working Conference
Paper Title: "AOV Valve Packing – Where it fits into the entire AOV Program
Puzzle"
Amelia Island, Florida August 8th.
ABSTRACT
• In today’s nuclear power world AOV performance is a key part of reducing
maintenance problems. Valve packing selection directly relates to the
effectiveness of any plant’s AOV Program and could result in an enormous
consumption of maintenance resources.
One of the topics will focus on detailed examples of new AOV valve packing
technology developments that have assisted plants in the reduction of
maintenance headaches.
• Another area of concern, which will be addressed, is the implementation of good
maintenance principles in an AOV program. This will include packing consolidation
procedures and the possible misuse of stem lubricants to mask packing friction.
Today it is important to utilize low friction packing technology to allow a valve into
an operability window without sacrificing sealability and creating chemistry issues.
8. 2005
• Conference: AOV Users Conference
Paper Title: "Writing and implementing Packing Procedures – Lesson’s Learned"
Clearwater, Florida January 14th
• ABSTRACT
• In today’s nuclear power world critical valve performance is a key part of safe and
reliable nuclear plant operation. How plants’ Packing procedures are written and
implemented is critical in today’s world of shortened outages. There is no time for
repetitive gland adjustments or frequent packing installations because of poorly
written packing installation procedures. This paper will focus on plants with well-
written procedures that have resulted in maintenance, engineering, and I&C
groups taking total ownership of achieving peak performance from critical AOV /
MOV Valves. This paper will also include discussions regarding packing
consolidation procedures and the misuse of stem lubricants to mask packing
friction. Today it is important to utilize new low friction packing technology to
enhance valve operability without sacrificing long-term valve sealing.
9. 2005
• Conference: ASME Pressure Vessels and Piping Conference
Title: Utilizing Direct Tension Squirter indicators in Industrial Applications
Denver, Colorado July 17th
Abstract:
• In the world of critical bolting applications there is a need for achieving correct
gasket loads. The new technology of Direct Tension Squirter Washers is designed
to show visual indication when 60% of yield for a B7 bolt has been reached.
Torque wrench inconsistencies have caused many gasket failures. There are many
times the incorrect gasket load has been applied to bolted joints resulting in joint
failure. The root cause of these failures range from bad calculation of friction for
anti seize to damaged threads. DTSW ensures the bolts have reached the correct
bolting load resulting in a properly loaded gasket that will not be doomed for
failure.
• This paper will review the DTSW Technology and how it can be applied in Industry
applications. It will discuss the inaccuracy of torque wrench technology in today’s
industrial bolting environment. The paper will also highlight show the DTSW
technology ease of use compared to typical Indicator washers that require feeler
gauges.
10. 2005
• Conference: 5th EPRI Conference on International Maintenance
Paper Title: "Writing and implementing Packing Procedures – Lesson’s Learned"
Jersey City, New Jersey August 8th
• ABSTRACT
• In today’s electricity generation industry world critical valve performance is a key
part of safe and reliable plant operation. How plants’ Packing procedures are
written and implemented is critical in today’s world of shortened outages and
extended up-time. There is no time for repetitive gland adjustments or frequent
packing installations because of poorly written packing installation procedures.
This paper will focus on plants with well-written procedures that have resulted in
maintenance, engineering, and I&C groups taking total ownership of achieving
peak performance from critical AOV / MOV Valves. This paper will also include
discussions regarding packing consolidation procedures and the misuse of stem
lubricants to mask packing friction. Today it is important to utilize new low friction
packing technology to enhance valve operability without sacrificing long-term
valve sealing.
11. 2006
• Conference: AOV Users Group 2006 Meeting
Paper Title: "Nuclear Valve Packing Performance Testing"
Clearwater, Florida January 14th
• ABSTRACT
• One of the most important challenges in today’s nuclear Valve arena is
the balance between packing performance and its frictional footprint. We
have undertaken a logical testing protocol to gather data on valve
packing’s performance/friction values throughout a full steam thermal
cycle. This testing will focus on different packing materials and designs.
Also the research will focus on the relationship between the combined
value of the packing coefficient of friction and the ratio of gland load
forces. This data could perhaps assist the industry in determining a better
model for valve friction calculations. Another facet of this testing will
focus on live loading spring heights after a loss of gland load being re-
tightened to the original heights for frictional concerns. Today it is
important to utilize best available packing technology that can enhance
AOV/MOV operability without sacrificing long-term valve sealing.
12. 2006
• Conference: EGC Energy Conference
Paper Title: "Lessons Learned on Valve & Pump Packing or
What You Have Always Wanted to Know About Packing But
Were Afraid to Ask"
Bismarck, North Dakota January 25th
• ABSTRACT
• This workshop will cover all aspects of mechanical packing
including how to install and operate pump and valve
packing more effectively in all areas of the power industry.
Also, the subject of how to identify what packing materials
should be installed in what applications to make the
equipment have a longer MTBF and reduce the overall life
cycle costs of the equipment.
13. 2006
• Conference: Ninth NRC/ASME Symposium on Valves, Pumps, and In-service
Testing
Title: Nuclear Valve Packing Performance Testing
Washington DC, July 17th
Abstract:
One of the most important challenges in today's nuclear Valve arena is the balance
between packing performance and its frictional footprint.
• We have undertaken a logical testing protocol to gather data on valve packing's
performance/friction values throughout a full steam thermal cycle. This testing will
focus on different packing materials and designs. Also the research will focus on
the relationship between the combined value of the packing coefficient of friction
and the ratio of gland load forces. This data could perhaps assist the industry in
determining a better model for valve friction calculations. Another facet of this
testing will focus on live loading spring heights after a loss of gland load being re-
tightened to the original heights for frictional concerns. Today it is important to
utilize best available packing technology that can enhance AOV/MOV operability
without sacrificing long-term valve sealing.
•
14. 2006
• Conference: Valve World 2006 Conference & Expo
Maastricht, the Netherlands, November 7-9th
Title: Power Industry Valve Packing Performance Testing
Abstract:
One of the most important challenges in today’s Power Industry Valve
arena is the balance between packing performance and its frictional
footprint. We have undertaken a logical testing protocol to gather data on
valve packing’s performance/friction values throughout a full steam
thermal cycle. This testing will focus on different packing materials and
designs. Also the research will focus on the relationship between the
combined value of the packing coefficient of friction and the ratio of gland
load forces. This data could perhaps assist the industry in determining a
better model for valve friction calculations. Another facet of this testing
will focus on live loading spring heights after a loss of gland load being re-
tightened to the original heights for frictional concerns. Today it is
important to utilize best available packing technology that can enhance
AOV/MOV operability without sacrificing long-term valve sealing.
15. 2007
• Conference: AOV Users Conference
Paper Title: "Enhanced Nuclear Valve Packing Performance testing"
Clearwater, Florida January 14th
• ABSTRACT
• Packing research and development is key to creating a long term leak free nuclear
valve program. Chesterton has undertaken a two year study of packing
performance. The research has focused on the relationship between packing
construction, transfer of gland loads, packing consolidation, and resulting stem
friction. This paper will focus on the following points:
-Extended study on utilizing live loading spring height consolidation in regards to
changes in stem friction.
-Show the critical relationship between gland stud condition and the gland stress
applied to a packing set.
-Long term sealablity testing.
-Friction calculation variables due to y factor assumptions.
• Today it is important to utilize best available packing technology that can enhance
AOV/MOV operability without sacrificing long-term valve sealing.
16. 2007
• Conference: Fluid Sealing Technology Interest
Group Meeting
Paper Title: "Nuclear Valve and Gasket
Sealing"
Charlotte, NC February 6
17. 2008
• Conference: AOV Users Conference
Paper Title: "Valve Packing Testing in Boric
Acid"
Orlando, Florida January 14th
• Joint presentation with Mike Pelletier
18. 2008
• Conference: Boric Acid Corrosion Control Working
Meeting
Paper Title: "Valve Packing Challenges with Boric
Acid Valve Leaks"
Atlanta, Georgia January 16th
19. 2008
• Conference: Fluid Leak Management Summer Meeting
Paper Title: "Re-torquing vs. spring assembly height to re-
apply gland load "
Oakbrook, Illinois August 26th
• Abstract:
In the nuclear industry today there are many circumstances when the first course
of action of a leaking valve is to re-apply the calculated torque value. In valves that
have been exposed to temperature the gland force that is created in re-torquing
will not be the same as the “initial” installation value.
This presentation will focus on the topic of re-apply gland load on valves in service
and discuss alternatives that will result in more accurate gland loading. One
method that will be discussed in depth is that of using live loading assembly
heights as a measurement of gland load applied. The presentation will review
testing data and analyze the bolt-anti seize relationship.
One goal of this discussion is to assist the nuclear industry in creating better
techniques to handle a loss of gland load. Today it is important to utilize best
available packing technology that can enhance AOV/MOV operability without
sacrificing long-term valve sealing.
20. 2008
• Conference: CANDU Owners Group: Nuclear
Professional Valve Conference
Paper Title: "Chesterton / Valve Packing "
Mississauga Ontario, Canada December 8th
21. 2009
• Conference: MOV Users Conference
Paper Title: "Decreasing packing friction by utilizing
innovative packing construction"
Orlando, Florida January 14th
• Abstract:
In the Nuclear Industry stem packing friction is a real
concern. This presentation will focus on ways to reduce
packing friction by using innovative packing construction
and a simplified gland load formula. Laboratory testing on
packing friction, packing construction, and gland load
matrix to achieve better Valve performance will be
discussed. Today it is important to utilize best available
packing technology that can enhance MOV operability
without sacrificing long-term valve sealing.
22. 2009
• Conference: Fluid Leak Management Summer Meeting
Paper Title: "Flange Live loading – Advanced Technology
for Flange Sealing "
Oakbrook, Illinois August 26th
• Abstract:
Bolted flange connections have been an area of concern in the nuclear
industry. A Bolted connection is a combination of many subsets including
gasketing, bolting, preload, and flange condition. This presentation will
focus on the engineering principles of using flange live loading to result in
a longer life by delaying the loss of preload on the gasket. This
presentation will also discuss all facets of a bolted connection that could
lead to premature failure of the joint including torque procedures, anti-
seize evaluation, and streamlined processes. Also case histories of nuclear
flange applications will be reviewed.
23. 2011
• Conference: Fluid Leak Management Summer Meeting
Presentation Title: “Galvanic corrosion and stem pitting in
Valves – The graphite connection”
Oakbrook, Illinois August 26th
• Abstract:
This presentation will focus on the connection between graphite valve
packing and stem pitting. Also it will go in detail how galvanic corrosion is
created and technologies that are used to resist it. There are many
different types of packing inhibitors and this presentation will go in depth
with the different options including Zinc and Molybdates. This in depth
explanation of the chemistry of stem corrosion is important for fluid leak
managers to understand to keep valve sealablity high in a plant.
24. 2013
• Conference: ISA LDAR conference
Presentation Title: “Fundamentals of valve packing
installation”
New Orleans, LA
• Abstract:
One point that is lost sometimes when discussing LDAR is that complications
evaporate when valves have a higher sealing performance. One way better
sealing has been handled is by the creation of strict emissions testing protocols to
aid in selection and grading of different packing manufacturers. Another area
that is as important in reaching the goal of higher sealing performance is better
valve packing installation techniques.
This presentation will focus on identifying best practices in regards to valve packing
installation. The best valve packing installed incorrectly will not ensure
compliance to LDAR requirements. It is imperative that a plant have a serious,
focused, approach to this important subject. One way to improve this is by
creating a continuous improvement process regarding valve packing that is fact
25. 2014
• Conference: EGC Energy Conference
Paper Title: "Valve Sealing for the Power Industry"
Bismarck, North Dakota January 25th
• ABSTRACT
Plants need to have a serious, focused approach when discussing and
addressing valves and sealing performance. The best valve packing,
installed incorrectly, will not perform to standards and improve heat
rates. One of the most important points in reaching the goal of higher
sealing performance is better valve packing installation techniques; and
this session will focus on identifying best practices in regards to valve
packing installation.
26. 2015
• Conference: ISA LDAR conference
Presentation Title: “Communication necessary to
achieve LowE valve sealing compliance”
New Orleans, LA
• Abstract:
• In today’s complex world of fugitive emissions valve sealing, it is important that
multiple distinct groups communicate. These groups need to have 24/7 access to
important data that will ensure the valve will meet LowE emission limits. This
paper will focus on the type of information and the process that is needed for
valve packing installation that will result in compliance to consent decree limits.
• The groups that need to be working together include people from the plant
(Maintenance, Engineering, and LDAR), outside or inside valve shop technicians,
valve manufacturers, and valve packing manufacturers.
27. 2016
• Conference: AOV & MOV Users Conference
Paper Title: "Galvanic corrosion and stem pitting”
• New Orleans, LA January 12th
• This presentation will focus on the connection between
graphite valve packing and stem pitting. Also it will go in
detail how galvanic corrosion is created and technologies that
are used to resist it. There are many different types of
packing inhibitors and this presentation will go in depth with
the different options including Zinc and Molybdates. The
explanation of the chemistry is important for fluid leak
managers to understand to keep valve sealablity high in a
plant.
28. 2016
• Conference: Fluid Leak Management Summer Meeting
Paper Title: "An approach to examine Bolted
connections"
New Orleans, LA January 14th
• Abstract:
• Bolted flange connections have been an area of concern in the nuclear industry
from the beginning. A Bolted connection is a combination of many subsets
including gasketing, bolting, preload, and flange condition. This presentation
will focus on how the use of a joint loading diagram for the entire joint can assist
in engineering analysis of joint leak free operation. This approach looks at
thermal cycling effects on bolt load and in preload of the flange to examine the
sealablity and life expectancy of critical flanged joints. The engineering
principles of flange live loading and looking at the effect of gasket thickness has
to do with overall joint integrity.
29. 2016
• Conference: Fugitive Emissions Summit Americas
Paper Title: "Valve Installation Best Practices for Fugitive
Emissions Service“
Houston, TX June 14th
• Abstract:
• This training will focus on identifying best practices in regards to valve packing
installation as outlined by the Fluid Sealing Association. The best valve packing
installed incorrectly will not ensure compliance to LDAR requirements. It is
imperative that a plant have a serious, focused, approach to this important
subject. One way to improve this is by creating a continuous improvement
process regarding valve packing that is fact based and focusing on Identifying and
classifying root causes of packing performance.
30. 2016
• Conference: Managing Aging Plants Conference
Paper Title: " Modern Sealing technology for flanged
joints and Valves in aging plants”
Houston, TX November 9th
• Abstract:
• Today’s aging plants are at a disadvantage with flange sealing. One reason is that sealing
designs on antiquated equipment is relaying on old sealing maxims that can increase
accidents and product losses. A perfect example of this is relaying on poor joint designs
that require the dangerous act of hot re-torqueing to re-energize bolt load. This
presentation will focus on increasing bolt travel utilizing flange spring technology for the
joint that will lengthen leak free operations. This approach looks at thermal cycling
effects on bolt load of the flange and its effect to overall flange integrity. Also this
presentation will discuss applying this technology to manways and heat exchangers
besides troublesome flanges.
31. Summary
• Conference # of presentations
• AOV Users Group 8
• Fluid Leak Management (FLMUG) 4
• ISA 3
• AMSE 2
• EPRI 2
• EGC conference 2
• MOV Users Group 2
• NRC 1
• American Nuclear Society 1
• FSA conference 1
• Valve World 1
• INPO 1
• COG 1
• Fugitive Emission summit 1
• Managing Aging plants 1