Tuesday, August 18, 2015

Gasket Types and Material

Spiral Wound Gasket
Gasket is a device that aids in joining different systems without the problem of leakage. They basically fill the space between the pairing surfaces so that when the object comes under pressure, there is no chance of outflow.

They are made from different sheet materials and there purpose is to fill up the irregularities. They are also used for particular applications, like advanced pressured steam systems but in that case it includes asbestos. However, there is one problem with asbestos, they are highly explosive, hence it is safer to use those gaskets that have non- asbestos material. It is practical and health hazards can be halted completely.

Gaskets, also known as seals or joints have many types and they can be classified in various ways including factors like material, function, and application. They are made from material which is soft like rubber and works for sealing pipes to stop all sorts of leakage, prevent vibration and ascension.

Based on the material with which they are made, gaskets are of following types-

Cork Gaskets

They are used widely for applications concerning fuel, oil and solvents. The material used in them is natural cork joint with elastomer bindings. It  gives great malleability and shrinking.

Rubber Gaskets

Rubber gaskets can be found in applications like pipe gaskets, heat exchangers and manways. This is usually very soft and elastomers of natural rubber, neoprene, nitrile and EPDM can be used.

Non-Asbestos Gaskets

This is used mainly in applications like acid, steam, oil and water. During its formation a binding is formed between compressed fibre and elastomer.

The wide use of gaskets include -

  • Environmental Seals – the environmental contaminants are well guarded off by the gaskets. It helps in blocking the entry of dust and other foreign body particles. They are aptly used in electrical appliances where enclosures are must.
  • Liquid Seals – The main purpose of gasket is to aid from any sort of liquid. The rubber used in it defines the resistance that will be offered against any sort of leak.
  • Vibration – Vibration is related with mild frequencies. There are some anti-vibration pads which can be used to halt that. Also flooring can be helpful, to disrupt the vibration, hence saving the energy from getting wasted.
  • Mountings – The latest technology includes vast arena of public display but that needs lot of protection and safety. The sensitive display units have to be saved from shock, dust and other external factors including liquid.