Common Types of Asbestos Gaskets
Asbestos rope gaskets
Soft ropes woven from white asbestos fibers can be made into refractory gasket of any size and shape, offering a flexible solution for sealing boiler, furnace and oven doors. The loose binding of mineral fibers, however, makes the risk of associated exposure very severe.
Asbestos oval gaskets
This type of gasket combines soft asbestos material with wire inserts which give it extra shape and strength.
Asbestos spiral wound gaskets
This type of sophisticated gasket is made of concentric metal coating and asbestos. The design of this product is very strong, but still leaves pure asbestos fibers exposed to the open air.
Asbestos sheet gaskets or sheet packing
In order to mass produce asbestos gaskets for standard parts, manufacturers press asbestos and other fibers into a hard sheet like cardboard, from which they can make gaskets of all shapes. Many installation workers also manually cut sheet packs to size for individual pieces.
Asbestos Gasket Application
- Chemical plants: Factories that produce chemicals using asbestos gaskets are at risk of reacting. Asbestos is chemically inert and will not react with other substances.
- Power station: High voltage is always present, and the asbestos gasket in the generator isolates the components from short circuit and grounding.
- Furnaces and boilers: Extreme heat and flammable materials are contained in asbestos gaskets.
- Gasket and diesel engines: Asbestos head gaskets are exclusively used to seal the combustion chamber and control the coolant pressure.
- Shipbuilding flanges: Ships require large gaskets to seal the flanges where water control is an issue. Asbestos is resistant to corrosion from salt water.
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