What Is a Ferrule Gasket?
A ferrule gasket is a gasket used to connect ferrule pipes together. Fittings are used to connect pipes and valves. The connection methods used for fittings include threaded and flanged.
Among the fittings, ferrule is used in a more hygienic environment. The fittings are easier to disassemble than screwed-in or flanged fittings. They are often used in situations where they are disassembled for cleaning. Special gaskets are available.
Uses of Ferrule Gaskets
Ferrule gaskets are also called sanitary piping or sanitary fittings. Because they can be assembled and disassembled without the need for tools, they are used in areas that are frequently removed for cleaning.
The inside of ferrule piping is characterized by its lack of unevenness, which makes it excellent for cleaning. The lack of liquid accumulation also reduces the risk of contamination by foreign substances and bacteria. Because of these features, ferrule gaskets are used in the pharmaceutical, cosmetics, and food-related fields.
Principle of Ferrule Gaskets
The ferrule gasket consists of three parts: ferrule piping, gasket, and clamping band. The flange of the ferrule pipe has a groove engraved on it. The gasket is not a flat gasket, but has a cross-shaped protrusion that fits into the groove of the pipe.
When connecting two ferrule pipes, the special gasket is used between them to ensure a tight seal. The connected flanges are secured by fastening them together with a clamping band. Tightening can be done by hand, so no tools are required.
The gasket can be changed according to the fluid used. The most common is a white silicone gasket. Various other types have been developed, including PTFE, fluoroelastomer, EPDM, NBR, and Saniclean.
There are two types of ferrule gaskets: Type A and Type B. Type A gaskets have an L-shaped cross section with a raised area around the gasket, while Type B gaskets have a flat cross section. Type B has a flat cross section, and Type A is less prone to misalignment when placed on the flange of the ferrule gasket.