Rubber Gasket

To fill the space between two objects, rubber gaskets that are a kind of mechanical seal are used to prevent leaks between the two objects when pressurized. In fact, these gaskets are embedded as a barrier or seal on the surface and in the existing groove between the two objects to prevent the leakage of gas or liquid. The most important feature that seals need to have is to keep the seal firmly under the pressure of heat or temperature and pressure.

gaskets are manufactured from various cutting materials and used in industry, which are mainly made of sheets of paper, rubber, metal, silicon, fabric, fiberglass, asbestos, plastic, or the like. Because gaskets are used to prevent leakage between two surfaces or two objects, it is recommended that you select the gaskets from slightly compressible material so that they can do their job well and tightly fills the space, which can be Choose from any of the slight irregularities depending on the user’s topic.

What types of rubber are used to produce gaskets?

Typically, any kind of rubber can be used to produce gaskets, but because of the need for the resistance and ability of these types of rubber against the pressure, temperature, and weather conditions, the most common types of rubber used to produce these gaskets are:

• Ethylene Propylene Diene Monomer Synthetic Rubber (EPM, EPDM)
• Fluor elastomers Synthetic rubber (FKM)
• Viton
• Neoprene Synthetic rubber
• Nitrile Synthetic Rubber (NBR)
• Synthetic Silicone Rubber (SiR)

Different types of Gaskets

Gaskets are diverse according to their type and application, which can generally be classified as follows:

• Sheet or die-cut gasket:

 These types of gaskets are long roll-on sheets when they are purchased. Then they are bought and cut by special devices for this flat sheet before it is assembled.

• Gasket strip:

 The materials of this kind of gaskets, such as weather-stripping material, are in the form of strips on the market. After purchase, they cut and produce them as different cross- sections such as round, square, rectangular, channel-like, C-fold, L-section, D-section, and so on.

• Sanitary gasket:

 These types of gaskets, which are produced in various shapes such as clamp bevel seat, dairy and biotech and etc., are commonly used for food industry such as beverage, pharmaceutical, food, dairy or Biotechnology is used to process their pipeline systems.

• Spiral wound gasket:

This type of gasket, which is used in many industries, is made up of alternating layers of soft fill material and a metal wire. In addition, these gaskets often have a ring inside and a ring outside their own, and in some models both types of rings are laid.

The outer ring is used to restrict compression, and the central ring or inner ring is used for radial power. This type of gaskets has a lot of flexibility, resiliency and strength and therefore they are used in many different industries.

• Spring finger gasket:

Gaskets are made of shielding materials such as EMI or beryllium materials and are available in strips. These gaskets are mainly used to remove spring fingers and closure properties that are used in many different types and variety of cross sections.

• Tape Gasket:

This kind of gaskets is produced flat or tape.

• Window gasket:

This kind of gaskets that is available in a variety of models and templates, as their name suggests, are usually used for sealing between glass and plastic windows in a metal sheet.

• Cured-in-Place (CIP) gasket:

This type of gasket is applied to one of the mating surfaces in liquid form and in precision beads. These gaskets act as seaming or sealing when the elastomer is compressed during assembly of the parts.

• Formed-in-Place (FIP) gasket:

This type of gasket is applied prior to assembly as a liquid sealant or fluid sealant. At this time, after fusing the surfaces, the FIP gasket extends and closes all seams, holes and surface roughness to prevent leakage and weather penetration.

• Coolant gasket:

This type of rubber gaskets that is called Multiple rubber gaskets is used to sealing the cavity, as a seals for liquid cooling. These types of rubber Coolant gaskets produce in a variety of shapes, models, sizes and colors.

Types of application of rubber gaskets for industrial and semi-industrial purposes

Gaskets are widely used in various types of industries. These gaskets are mainly used in the following cases:

• aerospace Industries
• Automotive industry
• military industries
• Aviation Industries
• electronics industry
• Transportation industry
• Production of household appliances
• Production of air frames
• Manufacturing of business machinery
• In the production and operation of the elevator
• In a variety of compressors
• On commissioning and manufacturing of electric stairs or Escalators
• In the production of a variety of medical equipment
• In the production of a wide range of turbines
• In the production of meters
• In the types of valves

The most important points to consider when shopping for gaskets

One of the most important points to consider when shopping for a gasket is to check the ability of the gasket to withstand high pressure loads. It is advisable to apply more compressive load on the gasket during the purchase and this period should be long.

 Hot compression testing is one of the best and most effective methods for measuring the ability of gasket materials in compressed loading. When you buy, you can request this information from the seller, as most manufacturers publish the results of these tests with their products and provide them with sales.

 Other factors that need to be checked or tested by the buyer are issues such as maximum operating pressure, operating temperature and electromagnetic and radio frequency protection.