2661/1661

Typical Physical Properties:
Density	62.4 lb/ft3
Compressibility - Tested under 5000 psi	35%
Recovery - Tested under 5000 psi	18%
Tensile Strength Across Grain	5000 psi
Creep Relaxation	12%
Compressive Strength	24,000 psi
Carbon Content	98% minimum
Total Sulfur	≤750 ppm maximum
Leachable Chlorides	< 30 ppm maximum

TEADIT® 2773/2202 for Pumps in the Sugar Industry

A world leader in the agribusiness industry began experiencing excessive leakage of products and by-products, as well as having multiple pump failures all due to abrasive media and the wrong installation of material.

24SH for Aggressive Media Case History

A global leader is sugar production was unhappy with their current sealing device, rubber-steel rings, due to the limited chemical resistance it had. The flanges these gaskets were failing on were challenging, as they were uneven with rough, structured surfaces.

2005 FDA Case History

A German confectionery producer was having an issue with their previous waxy PTFE packing which they found had short life term in the big agitators moving the chocolate.

Teadit's 2202 High Temp Case History

Sealing failures by the previously used sealing material caused efficiency losses in the equipment and the process as well as posing a safety risk.

Teadit's 2235 for Steam Service Valves Case History

A large petrochemical plant began experiencing leakages on the superheated steam valves in their Ethylene unit.

TEADIT® TF1570 CASE HISTORY

A major chemical plant was working with recurrent leakages in their Bromine Tower, causing production to use alternative resources in the process due to the equipment inefficiency.

Tealon™ TF1580 Case History

The customer was experiencing internal leakage issues on their spiral heat exchanger equipment.

24SH One Piece Construction Case History

A customer was using a rigid silica filled, restructured PTFE gasket in a large rectangular heat exchanger flange in a chemical processing facility.

Teadit 2002 – Paper Refiner Solution

Read more here:

24B For Flue Gas Canals

Flue Gas Desulfurization

25BI in the Pharmaceutical Industry

RC510 Case History

Railcar Tank Manway

Large Camprofile Case History

When a large refining custWhen a large refining customer came to us with a request to manufacture camprofile style 942 gaskets more than 12 feet in diameter, we immediately recognized a number of challenges.omer came to us with a request to manufacture camprofile style 942 gaskets more than 12 feet in diameter, we immediately recognized a number of challenges.

24SH Environmental Chemical Processing

Alumina Refinery Case History

Poor performance related to a heat exchanger was causing a lack of efficiency in other process equipment (including the boilers).

Chemical Refinery Acrylic Acid Case History

A rectangular heat exchanger, responsible for 28% of the plant’s acrylic acid production, was leaking during hydrotesting prior to the plant’s planned start-up.

Power Generation Case History

An end user was experiencing spiral wound gasket failures on an 8” 600# knife gate valve. The current gaskets were breaking and there was a concern about fragments of metal contaminating the line and causing damage to equipment (high potential for millions of dollars of cost in repairs and downtime).

TEADIT® 25BI CASE HISTORY

Filter leakage, due to surface irregularities between a lid and a fixed flange, caused contamination in a plant. This increased the risk for chemical burn injuries and corrosion of nearby equipment. The fragility of PVC flanges limited the ability to solve the problem by simply increasing the bolting torque on the flanges (i.e., increasing gasket seating stress).

PACKING STYLE TEADIT® 2773 CASE HISTORY

Pumping of abrasive fluids is one of the fundamental stages of the production process of a Sugar and Alcohol Plant. The use of low mechanical resistance packings in pumps means a greater number of packing replacements, affecting the plant productivity.

TEALON™ TF1580 CASE HISTORY

This equipment often suffers internal leakage and clogging of its channels due to the fragmentation of the original gasket, affecting its thermal performance. A skived PTFE gasket presents a fragile behavior when compressed by the ends of the heat exchanger. Steam injection was a frequent practice to maintain the required level of steam necessary for the equipment operation, resulting in a typical operational cost of $225,000.00 every 6 months.

TEADIT® 24B CASE HISTORY

A manufacturer of blowers was having difficulty sealing a new nitrogen blower for a large manufacturer of commercial and consumer products. Blowers can be very challenging sealing applications, as they often have very complex sealing areas which require a non-standard gasket as standard flat gaskets can be extraordinarily difficult to install, if even possible, and require a lengthy installation process

2238-OX Case History

A major oil and gas company had an accident at a gas separation facility in the Middle East in a system in oxygen service. This is a critical service which poses a large safety risk to the facility and requires very careful selection of materials and extreme cleanliness standards. After the incident the customer initiated the process of re-evaluating the materials, including sealing products, that they were utilizing in this extremely critical service. The customer began searching for the best technical solution for packing material to equip all their on/off valves in the plant with. Download the case history here and find out how Teadit provided an engineered solution!

Case History Sealpack 47 & 2774

A large sugar mill was having issues with constant leakage out of their sugar crystallizer mixer, which is operating at 30psi and 180°F, with a rotational speed of 10RPM. Agitators on large mixers such as this can pose more challenges to braided packing than would appear from the basic operating parameters. Large agitators in general tend to have challenges with shaft alignment which can pose a serious issue for braided packing as it creates uneven wear on the packing and can lead to premature failure. Find out how Teadit provided two unique solutions for this type of application!

Teadit 24SH – Spiral Heat Exchanger Case History

A biochemical manufacturer reached out to a Teadit partner for support regarding premature gasket failure on a spiral heat exchanger. Spiral heat exchangers pose some unique challenges for sealing due to their very large diameter as well as their unique sealing surface. Read more about the solution provided by Teadit that not only fixed the issue, but reduced maintenance cost, production loss and installation failure!

TEADIT® 2005 – Harsh Chemical Agitator CASE HISTORY

A major chemical processing customer was experiencing media leakage of harsh chemicals from packing on some of their agitators. Large diameter agitators such as this can pose many challenges for braided packing sets. This type of equipment often suffers from shaft alignment issues as well as worn or damaged shafts which can be difficult scenarios for braided packing to be successful in. This specific application posed another challenge in the form of the packing configuration being utilized in the equipment. Previously the customer had been utilizing a packing configuration consisting of 10 rings of PTFE packing. A configuration with a high amount of packing rings such as this can lead to an insufficient amount of load being applied to each ring. In packing sets the load / stress applied is greater at the rings closest to the gland follower and will decrease for each ring further away from the top ring.

TEADIT 24SH - Electrolytic Nickel Plant

A recently acquired Nickel Plant was experiencing leaking flanges, however it was posing serious safety and environmental concerns! The customer turned to Teadit, knowing we strive to seal for both a safer and greener tomorrow. Find out the which of our products was the fix here, as well as how we were able to provide a six figure savings!

Teadit 2235 -- Steam Valves

Steam service requires a material that can withstand high temperatures for an extended period without degradation, and valves require a packing material that is robust and pressure resistant without damaging the valve stem. A major petrochemical plant was having problems with high temperature, superheated steam leaking from valve stems throughout the facility. Leakage of such high temperature steam posed a significant safety risk for all those on site and the leakage was also negatively influencing the quality of the process. In addition, the steam leakage was causing extremely high maintenance costs due to down time. Steam valves can prove to be a challenging application to create an effective, long term seal.

Teadit Style 2002 Paper Industry Case History

24SH - Seawater Pumps

An industrial facility was using sea water for their cooling system and wanted to change from graphite gasketing material due to potential galvanic corrosion.

NA1100 Spiral Heat Exchanger Case History

A global leader of heat transfer, separation, and fluid handling came to Teadit for consultation on an issue they were experiencing with the gasket being used in one of their spiral heat exchangers.

TEADIT GR1700 CASE HISTORY

A phosphorus miner and phosphate fertilizer producer had a gasket, carbon fiber with NBR binder, that was not suitable for the application , SO2, it was being used in and ended up failing in less than a year.

TEADIT® 2236 Fugitive Emissions Case History

A large petrochemical refiner came to Teadit seeking help with valves in their plant putting out high levels of fugitive emissions. As Teadit specializes in products that assist in the reduction of fugitive emissions, the refiner reached out to us for a solution.

TEADIT® 25BI for Heat Exchangers

A premier biopharmaceutical company raised concerns about the gaskets being used on their heat exchangers and whether they had the ability to withstand the cycles they were being put through...

TEADIT® 2773/2202 for Pumps in the Sugar Industry

A world leader in the agribusiness industry began experiencing excessive leakage of products and by-products, as well as having multiple pump failures all due to abrasive media and the wrong installation of material.

24SH for Aggressive Media Case History

A global leader is sugar production was unhappy with their current sealing device, rubber-steel rings, due to the limited chemical resistance it had. The flanges these gaskets were failing on were challenging, as they were uneven with rough, structured surfaces.

2005 FDA Case History

A German confectionery producer was having an issue with their previous waxy PTFE packing which they found had short life term in the big agitators moving the chocolate.

Teadit's 2202 High Temp Case History

Sealing failures by the previously used sealing material caused efficiency losses in the equipment and the process as well as posing a safety risk.

Teadit's 2235 for Steam Service Valves Case History

A large petrochemical plant began experiencing leakages on the superheated steam valves in their Ethylene unit.

TEADIT® TF1570 CASE HISTORY

A major chemical plant was working with recurrent leakages in their Bromine Tower, causing production to use alternative resources in the process due to the equipment inefficiency.

Tealon™ TF1580 Case History

The customer was experiencing internal leakage issues on their spiral heat exchanger equipment.

24SH One Piece Construction Case History

A customer was using a rigid silica filled, restructured PTFE gasket in a large rectangular heat exchanger flange in a chemical processing facility.

Teadit 2002 – Paper Refiner Solution

Read more here:

24B For Flue Gas Canals

Flue Gas Desulfurization

25BI in the Pharmaceutical Industry

RC510 Case History

Railcar Tank Manway

Large Camprofile Case History

When a large refining custWhen a large refining customer came to us with a request to manufacture camprofile style 942 gaskets more than 12 feet in diameter, we immediately recognized a number of challenges.omer came to us with a request to manufacture camprofile style 942 gaskets more than 12 feet in diameter, we immediately recognized a number of challenges.

24SH Environmental Chemical Processing

Alumina Refinery Case History

Poor performance related to a heat exchanger was causing a lack of efficiency in other process equipment (including the boilers).

Chemical Refinery Acrylic Acid Case History

A rectangular heat exchanger, responsible for 28% of the plant’s acrylic acid production, was leaking during hydrotesting prior to the plant’s planned start-up.

Power Generation Case History

An end user was experiencing spiral wound gasket failures on an 8” 600# knife gate valve. The current gaskets were breaking and there was a concern about fragments of metal contaminating the line and causing damage to equipment (high potential for millions of dollars of cost in repairs and downtime).

TEADIT® 25BI CASE HISTORY

Filter leakage, due to surface irregularities between a lid and a fixed flange, caused contamination in a plant. This increased the risk for chemical burn injuries and corrosion of nearby equipment. The fragility of PVC flanges limited the ability to solve the problem by simply increasing the bolting torque on the flanges (i.e., increasing gasket seating stress).

PACKING STYLE TEADIT® 2773 CASE HISTORY

Pumping of abrasive fluids is one of the fundamental stages of the production process of a Sugar and Alcohol Plant. The use of low mechanical resistance packings in pumps means a greater number of packing replacements, affecting the plant productivity.

TEALON™ TF1580 CASE HISTORY

This equipment often suffers internal leakage and clogging of its channels due to the fragmentation of the original gasket, affecting its thermal performance. A skived PTFE gasket presents a fragile behavior when compressed by the ends of the heat exchanger. Steam injection was a frequent practice to maintain the required level of steam necessary for the equipment operation, resulting in a typical operational cost of $225,000.00 every 6 months.

TEADIT® 24B CASE HISTORY

A manufacturer of blowers was having difficulty sealing a new nitrogen blower for a large manufacturer of commercial and consumer products. Blowers can be very challenging sealing applications, as they often have very complex sealing areas which require a non-standard gasket as standard flat gaskets can be extraordinarily difficult to install, if even possible, and require a lengthy installation process

2238-OX Case History

A major oil and gas company had an accident at a gas separation facility in the Middle East in a system in oxygen service. This is a critical service which poses a large safety risk to the facility and requires very careful selection of materials and extreme cleanliness standards. After the incident the customer initiated the process of re-evaluating the materials, including sealing products, that they were utilizing in this extremely critical service. The customer began searching for the best technical solution for packing material to equip all their on/off valves in the plant with. Download the case history here and find out how Teadit provided an engineered solution!

Case History Sealpack 47 & 2774

A large sugar mill was having issues with constant leakage out of their sugar crystallizer mixer, which is operating at 30psi and 180°F, with a rotational speed of 10RPM. Agitators on large mixers such as this can pose more challenges to braided packing than would appear from the basic operating parameters. Large agitators in general tend to have challenges with shaft alignment which can pose a serious issue for braided packing as it creates uneven wear on the packing and can lead to premature failure. Find out how Teadit provided two unique solutions for this type of application!

Teadit 24SH – Spiral Heat Exchanger Case History

A biochemical manufacturer reached out to a Teadit partner for support regarding premature gasket failure on a spiral heat exchanger. Spiral heat exchangers pose some unique challenges for sealing due to their very large diameter as well as their unique sealing surface. Read more about the solution provided by Teadit that not only fixed the issue, but reduced maintenance cost, production loss and installation failure!

TEADIT® 2005 – Harsh Chemical Agitator CASE HISTORY

A major chemical processing customer was experiencing media leakage of harsh chemicals from packing on some of their agitators. Large diameter agitators such as this can pose many challenges for braided packing sets. This type of equipment often suffers from shaft alignment issues as well as worn or damaged shafts which can be difficult scenarios for braided packing to be successful in. This specific application posed another challenge in the form of the packing configuration being utilized in the equipment. Previously the customer had been utilizing a packing configuration consisting of 10 rings of PTFE packing. A configuration with a high amount of packing rings such as this can lead to an insufficient amount of load being applied to each ring. In packing sets the load / stress applied is greater at the rings closest to the gland follower and will decrease for each ring further away from the top ring.

TEADIT 24SH - Electrolytic Nickel Plant

A recently acquired Nickel Plant was experiencing leaking flanges, however it was posing serious safety and environmental concerns! The customer turned to Teadit, knowing we strive to seal for both a safer and greener tomorrow. Find out the which of our products was the fix here, as well as how we were able to provide a six figure savings!

Teadit 2235 -- Steam Valves

Steam service requires a material that can withstand high temperatures for an extended period without degradation, and valves require a packing material that is robust and pressure resistant without damaging the valve stem. A major petrochemical plant was having problems with high temperature, superheated steam leaking from valve stems throughout the facility. Leakage of such high temperature steam posed a significant safety risk for all those on site and the leakage was also negatively influencing the quality of the process. In addition, the steam leakage was causing extremely high maintenance costs due to down time. Steam valves can prove to be a challenging application to create an effective, long term seal.

Teadit Style 2002 Paper Industry Case History

24SH - Seawater Pumps

An industrial facility was using sea water for their cooling system and wanted to change from graphite gasketing material due to potential galvanic corrosion.

NA1100 Spiral Heat Exchanger Case History

A global leader of heat transfer, separation, and fluid handling came to Teadit for consultation on an issue they were experiencing with the gasket being used in one of their spiral heat exchangers.

TEADIT GR1700 CASE HISTORY

A phosphorus miner and phosphate fertilizer producer had a gasket, carbon fiber with NBR binder, that was not suitable for the application , SO2, it was being used in and ended up failing in less than a year.

TEADIT® 2236 Fugitive Emissions Case History

A large petrochemical refiner came to Teadit seeking help with valves in their plant putting out high levels of fugitive emissions. As Teadit specializes in products that assist in the reduction of fugitive emissions, the refiner reached out to us for a solution.

TEADIT® 25BI for Heat Exchangers

A premier biopharmaceutical company raised concerns about the gaskets being used on their heat exchangers and whether they had the ability to withstand the cycles they were being put through...

TEADIT® 2773/2202 for Pumps in the Sugar Industry

A world leader in the agribusiness industry began experiencing excessive leakage of products and by-products, as well as having multiple pump failures all due to abrasive media and the wrong installation of material.

Temperature ºF (ºC)	Continuous Service: -328 (-200)
	Maximum Service: In air: 842 (450) In steam: 1202 (650) In reducing or inert media: 5432 (3000)
Availability	39 x 39 in
Availability	60 x 60 in
Thickness	1/64", 3/32", 1/32", 3/16"*, 1/16", 1/8", 1/4"

2661/1661 Flexible Graphite Sheet (316SS Foil Insert)

Service Limits

Datasheet GR2661 1661

Related Products

GR 1700

2660/1660

2663/1663

2664/1664

1701

See also in