Profit from our know-how and many years of experience to define the ideal material for your task. Our experts are available to you with solution proposals as early as the design stage.
Specialist knowledge from numerous markets and synergies from different application areas are your guarantee for optimal and cost-efficient solutions.
KED-Seals has developed a a suite of Rapid Gas Decompression Resistant (RGD) elastomeric compounds which perform outstandingly in the high pressure, high temperature and sour gas environments in downhole applications.
The advantages of elastomer seals include:
These compounds have undergone stringent testing to be approved to the following specifications:
KED-Seals has conducted testing on several PTFE and PEEK compounds which are now approved to NORSOK M-710 & ISO 23936-2 specifications.
Semi-crystalline PTFE is obtained by polymerization from monomeric TFE. The carbon-fluorine compound is one of the strongest bonds in organic chemistry with an exceptionally high chemical resistance.
[This plastic became known under the trade name Teflon® from the DuPont company. Other trade names of other manufacturers of PTFE are Dyneon PTFE (formerly Hostaflon) and Gore-Tex for PTFE membranes.]
PTFE (polytetrafluoroethylene) combines outstanding properties:
PTFE and PTFE compounds are reliable sealing materials with high durability and resistance.
By mixing fillers into PTFE (polytetrafluoroethylene can
For optimum function and reliability, the best combination between seal design, PTFE compound and mating surface must be defined. You can rely on the advice of our experts.
Flexible thermoplastic with very good chemical resistance, which maintains its excellent properties up to temperatures of + 300°C, as well as when used in low temperatures down to -100°C.
PEEK is used, for example, in back-up rings, seal assemblies, guide rings, ball valve seats, etc., which must meet the highest requirements.
The low specific weight of PEEK helps to reduce the weight of the components, and the low thermal expansion guarantees a small gap size. PEEK can replace metal parts because it combines high strength with an enormous weight advantage.
Our experts are at your disposal with suggested solutions as early as the design stage.
Wherever the highest demands are made on safety, reliability and economy, the special properties of composite materials are used. Composite materials score not only in terms of service life or operating costs (life cycle cost), but also due to their low weight!
The basis for these materials are carbon fiber materials bonded with PEEK.
PEEK or PEEK modification can replace metal parts. This material combines high strength, similiar to metal, with an enormous weight advantage.
Application areas for the high-performance elastomer CHEMFLON™:
CHEMFLON™ as an elastomer is particularly suitable for media combinations. Some media are critical in their combination and attack seals made of NBR, EPDM or FKM. This problem also arises when sealing one such medium against another. Here, CHEMFLON™ can solve many problems much more favorably than an FFKM.
Mechanical seals as an ideal application example for CHEMFLON™ : Water, steam or aqueous solutions against quench oil, lubricating oil or heat transfer oil. Because of the oil, EPDM cannot be used. For price reasons, FEP-covered O-Rings are then often used with all their disadvantages.
Other examples of critical media combinations:
CHEMFLON™ is an elastomer for highly stressed seals with excellent performance for a wide range of applications.
This compound outperforms many other elastomers, even under the most demanding conditions: An outstanding property of CHEMFLON™ is its resistance to both water/steam and oils, even at very high temperatures (up to + 230°C).
It offers excellent performance in harsh conditions such as oil production, chemical and petroleum industries, aerospace, automotive and refineries.
CHEMFLON™ provides significantly longer and more reliable operation in a wide range of fluids, especially at high temperatures.
Standard CHEMFLON™ seals and customized developments are available to meet all customer requirements.
KED-Seals introduces CHEMFLON™ 1285, a new FEPM grade (based on Aflas from AsahiGlass ) which is Rapid Gas Decompression (RGD) resistant. Approved to: NORSOK M-710 | ISO 23936-2 | API 6A (Sour Gas) | NACE TM0187 (Sour Gas)
Excellent performance in downhole conditions, with temperatures up to 250oC. Capable of performing in aggressive fluid media such as hydrocarbons, Methanol, H2S, Amine-based inhibitors, Formates and is especially good in hot water and steam and steam applications.
Available in common seal geometries including O-Rings, X-Rings (Quad Rings), T-Seals and Vee Rings.
Due to the high purity requirements in the pharmaceutical industry, problematic additives are replaced in the material and fillers are selected according to FDA regulations and guidelines. CHEMFLON™ 1285 also complies with sanitary standard 3-A for multiple use.
Sanitary Gaskets made from CHEMFLON™ 1285 in accordance with FDA 21CFR177.2600 with FCN number are characterized by
Pharmaceutical manufacturers usually base their production on FDA (Food and Drug Administration, USA) guidelines in order to survive in this important market. FDA-compliant seals are therefore indispensable.
However, companies in the biotechnology, food and beverage industries also have increasingly stringent requirements in their manufacturing processes. Hot water and steam resistance for applications such as Steam-In-Place (SIP), Clean-In-Place (CIP) and Water-for-Injection and simultaneous resistance to chemicals, especially acids, are in particular demand for the new applications in sterile technology and food production.
Sanitary Gaskets made of CHEMFLON™ 1285 according to FDA 21CFR177.2600 with FCN number are available or producible in all sizes for Tri-Clover®, Tri-Clamp® installations as well as O-rings according to AS-568A and of course also in customized shapes.
We supply O-rings, sterile seals, flat seals, etc. and custom made products.
KEDFLON gaskets made of high-quality perfluoroelastomers are used
KEDFLON is an elastic sealing material with the chemical resistance of PTFE and the elastic behavior of rubber. Ideal for use with aggressive media and/or at extreme temperatures, in equipment and machinery such as mechanical seals, valves, pumps, mixers and fermenters.
The special properties of this material from the group of perfluoroelastomers require high-quality materials and complex production. Before using such a cost-intensive seal, we recommend professional consultation to check the economic use as well as the application and installation conditions.
The advice of KED-Seals experts ensures that the best and most economical solution is used for your requirements.
higher temperatures than standard NBR with the same resistance to
Hydrogenated NBR (HNBR) has significantly improved thermal and chemical stability and better resistance to steam, acid gases and ozone compared to NBR (conventional nitrile materials). At the same time, HNBR guarantees high tensile strength and good abrasion resistance.
Typical properties depending on compound/material: