Anwendungsbeispiele

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).

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!

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!

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.

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!

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.

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

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.

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.

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.

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.

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.

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

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

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.

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.

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

Flue Gas Desulfurization

A chemical processing facility was utilizing PTFE envelope style gaskets on a circulation heater.