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Fittings & Ferrules
Fittings & ferrules are indispensable components in chromatography that are crucial for the reliability and efficiency of chromatographic systems. They are used to ensure safe and tight connections between different parts of the system, such as columns, detectors and injectors. An optimal connection is crucial to prevent leaks and ensure consistent performance.
Fittings are connectors used to securely connect tubes and capillaries together. They are often made of materials such as stainless steel, PEEK (polyether ether ketone) or other chemically resistant materials that can withstand the high demands of chromatography. Stainless steel fittings offer high strength and chemical resistance, while PEEK fittings are valued for their flexibility and inertness to a variety of solvents.
Ferrules are small, ring-shaped components that are used together with fittings to create a tight connection. They are typically made of materials such as stainless steel, PEEK or graphite and are designed to tightly grip the capillary or pipe when the fitting is tightened. Choosing the right ferrule material depends on the application and the chemicals used. Stainless steel ferrules offer high strength and resistance to chemical attack, while PEEK ferrules offer good chemical resistance and flexibility. Graphite ferrules are often used in high temperature applications as they are temperature resistant and inert.
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