lamons purely high temperature gaskets

8/18/2019 Lamons Purely High Temperature Gaskets

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Sealing Global - Servicing Local

High Temperature Sealing Components

for Extreme Industrial Applications

HTG GASKETING PRODUCT FAMILY


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Lamons is the market leader in the

manufacture and supply of high

quality gasketing components

including spiral wounds, soft

gaskets, ring joints, CMG gaskets,kammpros, heat exchanger

gaskets and fasteners. Lamons is

committed to superior sealing

products distributed worldwide in

conjunction with personal,

localized service.

Lamons Gasket Company stocks

and provides the widest selection

of gasketing and bolt materials.

Lamons' sealing solutions are

utilized in every major industrial

market in the world and we are

depended upon daily to quickly

respond to any customer

specification or demand.We meet

our customers' requirements of

size, pressure, temperature, shape

and materials.

Our major manufacturing facilities

are in Houston and Hangzhou,

Zhejiang near Shanghai,with sales

and service facilities locatedthroughout the U.S. and Canada.

We also have many licensees and

distributors strategically located

throughout the world to provide

our customers with local service,

advanced technical support,

and the widest selection of

gasket materials ready for

immediate delivery.

Our locations feature leading

technology and state of the art

manufacturing facilities capableof producing engineered sealing

products to precise custom

specifications serving the refining,

chemical, power generatiuon,

and pulp and paper industries.

Extreme TemperatureLamons HTGProduct FamilyLamons high temperature gaskets represent the ultimate solution findustrial bolted joints that are exposed to extreme temperature.combining the superior sealing performance, impermeability and stabiof flexible graphite with an exceptional oxidation barrier, Lamons HTG searepresent the best technology available in regards to torque retention ansealability at elevated temperatures.

The Lamons’ HTG concept utilizes a premium super oxidation inhibiteflexible graphite that is completely shielded from oxidation by barriers mica/phyllosilicate. This inhibited flexible graphite is the most oxidatiresistant available on the market and like all homogeneous flexible graphitcompletely maintains its physical and mechanical properties regardless temperature exposure. The phyllosilicate barriers consist of Novus Hi-Temmaterial which is a mica/phyllosilicate based sealing material that contaa very low content of inorganic binder (less than half of the binder foundvermiculite/phyllosilicate filled sheets).The combination of these two sealimaterials allows the user to maintain the stability and impermeability flexible graphite and eliminate the effects of oxidation at extremtemperatures. Lamons HTG family of products are the most stable animpermeable gasket materials available for extreme temperatures.

Kammpro-HTG kammprofile gaskets

Lamons Kammpro gaskets are recognized as a problem solverfor heat exchangers, large vessels and equipment that

experience excessive movement due to thermal expansion.The Kammpro provides one of the tightest seals combined with superior load bearing characteristics.

WRI-HTG spiral wound gaske

Lamons “SpiraSeal” gaskets are manufacture

using specially fabricated machinery. They aconfigured to allow superior resiliency and seadjustment when compared to conventiongaskets. Lamons offers these gaskets in almoany combination of size, thickness acomponent material.

Novus Hi-Temp mica based facing material and filler material

Premium oxidation resistant flexible graphite facing material and filler material


3/6Novus Hi-Temp Phyllosilicate SheetMaterial for Cut Gaskets

LAMONSKammpro-HTGgasket design

Novus Hi-Temp phyllosilicate(mica) based oxidationshielding that blocks oxid-

izers eroding the flexiblegraphite at elevatedtemperatures

Super oxidation inhibitedflexible graphite to provideultimate sealability atextreme service temperatures

LAMONS WRI-HTGspiral woun

gasket desigAvailable in a varieof designs, sizes anconfigurations to adato almost any standaor specialty applicatio

An absolute minimizatiof organic binders thresult in superior torqretention and tightnewhen exposed elevated temperatures

Gasket ConstantsKammpro-HTG

“M” – 2.75 / “Y” – 3700PSI

Style WRI-HTG spiral wound gasket

“M” – 3.00 / “Y” – 10000PSI

Temperature LimitationsCryogenic to 1500F*

*This is a typical maximum value.Higher temperature may be applicabledependent upon internal pressure conditions and media being sealed.Contact Lamons Engineering for assistance.The use of high temperaturealloys is recommend for extreme temperatures.

Novus Hi-Temp mica/phyllosilicate

sheet is available as a cut gasket to

perform in extreme temperature

applications where metal reinforc-

ement is not required.

Resistance Solutions

HTG designs can be adapted to any style or size Kammpro or Spiral Wound gasket toprovide performance and protection in extreme temperatures. Both HTG designssuccessfully meet the requirements outlined in the modified AP1607 fire test. Test reportsavailable upon request.


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Traditional Seal Concepts

Popular compressed non-asbestos gasket exposed to

400°F for a duration of 4 hours. The physical properties

of these materials were severely degraded when

exposed to a fraction of their rating. The structure

turns glass-like and can fracture with slight flexing.

While these materials can still maintain functionality inmost cases, their ability to compensate for thermal

and pressure fluctuations is severely diminished by

heat exposure.

A vermiculite based compressed sheet material that

utilizes aramid fiber and a high content of organic binder

is severely affected by temperature and chemical

attack. A vermiculite material offers no additional

advantage over compressed non-asbestos at elevated

temperatures due to the high organic content.

Flexible graphite that is unprotected from oxidizers and

exposed to the atmosphere will convert to a gas

through oxidation. Flexible graphite that is contained

within a spiral wound element (left) will degrade at a

slower rate than a faced metal core (right) because it

is relatively encapsulated. Total oxidation is inevitable

unless the flexible graphite is sufficiently protected.

A kammprofile with a vermiculite based facing. An

exposure to 1500°F for six hours between flangesdestroys the rubber binder that holds the vermiculite

powder in suspension.

Vermiculite filled spiral wound gaskets utilize organic

binder as a processing aid for the filler. Elevated

temperature degrades the binder and will compromise

tightness and sealability.

Most sealing materials are detrimentally affected by extreme temperature exposure. Many competitive

products utilize a necessary processing aid consisting of an organic rubber binder where an inorganic

material is held in suspension. This low temperature binder begins to degrade, carbonize and embrittle at

temperatures as low as 300°F, resulting in a complete loss of physical and mechanical properties at moderate

temperatures. This rubber binder is susceptible to chemical attack and degradation even in mildly

aggressive services. This degradation inevitably leads to torque loss and leakage. Since the binder is evenly

dispersed throughout the sealing material, a complete loss of physical and mechanical properties is

experienced when exposed to elevated temperature. The mechanical properties that are characteristic of

an effective seal are lost when the rubber binder is subjected to temperature and chemical attack.


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For assistance with HTG sizing and design, contact Lamons Engineering at

[email protected]


Independent TGA weight loss testing illustrating the amount of binder contained within popular hightemperature gasket solutions. Higher binder content corresponds to weight, volume and torque loss

Thermal cycling test data shows very favorable test results for both Lamons Kammpro HTG and acompetitive vermiculite based material at 500 degrees F.

Thermal Cycling data at 800 degrees F is where the difference is significantly illustrated. Organic binder in

the vermiculite based facing is compromised to the point of leakage. The degradation of the binder in thevermiculite facing results in a loss of the ability to tolerate thermal upsets. The Lamons Kammpro HTGmaintains the flexible graphite’s original resilience and physical properties while protected from oxidizersby the phyllosilicate barriers.

. . . experience

the difference

www.lamonsgasket.com • [email protected] Airport Blvd. Houston, Texas 77061 USA • Phone (713) 222-0284 • Toll Free (800) 231-6906 • Fax (713) 547-9502 • A TriMas Com

Lamons Kammpro HTG after exposuto 1500°F – The Flexible graphite maintaall physical and mechanical propertiafter exposure

Lamons WRI-HTG spiral wound gasket aftexposure to 1500°F – Maintaining the proveand superior sealing characteristics of flexibgraphite creates an ideal high temperatusolution – the flexible graphite is completeprotected from oxidation

Know the facts. . . .


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www.lamonsgasket.com [email protected]

00 Airport Blvd. Houston, Texas 77061 USA • Phone (713) 222-0284 • Toll Free (800) 231-6906 • Fax (713) 547-9502 • A TriMas Com

Houston, TX(713) 222-0284

Freeport, TX(979) 265-2100

Beaumont, TX(409) 838-6304

New Orleans, LA(985) 785-4160

Baton Rouge, LA(225) 292-4250

Lake Charles, LA(337) 882-1681

Boothwyn, PA(610) 364-1111

Joliet, IL(815) 744-3902

Rancho Dominguez, CA(310) 886-1133

Martinez, CA(925) 313-9080

Bellingham, WA(360) 733-3831

Sarnia, Ontario(519) 332-1800

Fort Erie, Ontario(905) 871-0600

Singapore65-6466-9340

China86571-8672-7235

HTG GASKETING PRODUCT FAMILYLamons WRI-HTG and Kammpro HTG are the most stable gasket designsavailable for extreme temperatures. The utilization of flexible graphite allowsthe gasket to maintain torque and tightness through thermal cycling while

providing the ultimate fugitive emissions seal. By utilizing a phyllosilicateoxidation shielding, the flexible graphite is able to maintain its integrity andprovide freedom from oxidation.

lamons purely high temperature gaskets

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