Bonded seals are static seals used as sealing rings in threaded fittings and flange connections.
To avoid any damage on the sealing lip, the inside diameter of bonded seal should be larger than the external thread diameter and the rubber should be bonded to the inside metal only.
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FFKM materials are elastomeric compounds designed with high fluorine content to offer extreme chemical resistance, similar to PTFE, and at the same time the elastic qualities of an elastomer.
UHMW-PE polyethylene is a pressed technopolymer with very high molecular density. Compared to polyethylene with lower densities it has better mechanical characteristics, better resistance to wear and better smoothness having a lower coefficient of friction.
It is a very versatile plastic material and used in very many fields, offering durability to wear and good smoothness characteristics.
Polyamides are the most widely used thermoplastics and have the advantage of having excellent mechanical properties which remain constant even at high and low temperatures and a low coefficient of friction.
They have excellent wear and abrasion resistance and are also resistant to various chemical and atmospheric agents.
Being a hygroscopic material, i.e. it has a high humidity absorption, it is not suitable for applications involving contact with water or when demanding tolerances are to be maintained, especially in humid environments (for this reason PA is not used in contact with food).
Polyoxymethylene (POM, commonly known as Acetal Resin) is a semi-crystalline thermoplastic technopolymer popular for its excellent mechanical characteristics. It is used for the production of precision parts that require high rigidity, as an alternative solution to replace some metals such as steel, brass, aluminium. It has a low coefficient of friction and great dimensional stability, excellent sliding properties, resistance to wear and reduced moisture absorption.
PEEK is a semi-crystalline thermoplastic known chemically as polyetheretherketone with excellent chemical resistance, very good mechanical characteristics, low permeability and with the best tensile strength coefficient of plastics. This material can be filled with glass fibre, carbon, PTFE, graphite and other components.
Modified PTFE (or MPTFE) is a further development of regular PTFE with a different chemical structure, reducing significantly its molecular weight. This compound presents a high quality and poreless character.
Upon request we can supply the following material options:
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