DIFFERENT TYPES OF GASKET MATERIALS

 

Chemicals, fuel, high pressure, and high temperatures often damage seals. Therefore, the chosen gasket material should be resistant to chemicals, abrasion-resistant, and rust-free. The choice depends on its application. Different types of gaskets to choose from include:

 

1. Gold Seal:

Metal gaskets are also called ring gaskets or RTJ (ring-type) gaskets. A metal alloy provides these marks in the correct shape and size. Some materials used to manufacture steel gaskets include low-carbon steel, stainless steel, mild steel, and Monel.

 

Metal gaskets are commonly found in valves and pipes, and refinery assemblies. They are used in high-pressure class flanges (e.g., oil and gas supply production) and high-temperature applications to provide excellent reliability.

 

On the other hand, there must be a high resistance when using metal joints.

 2. Non-metallic seals:

The non-metal gasket material is a rubber gasket, which can be easily compressed, and the bottom tension bolts. They can be used with heat exchangers, pipe flanges, and compressor valve seals.

 

The following materials make up non-metallic joints:

 

Asbestos Free Absorbent Fiber (CNAF)

Teflon

Rubber

Graphite

Aramid fiber

Cup food

On the other hand, non-metallic seals are used in low-pressure applications (about 150 and 300 class) and typical temperature applications. Despite this, graphite gaskets are commonly found at high temperatures and work at temperatures as high as 460 degrees centigrade.

 

These graphite materials are also used for flat-face and high-face flanges, while full-face and basic ring gasket types are used for flat-face and high-face flanges. The cheapest type of gaskets are non-metallic gaskets, and they are fast.

 

Some types of non-metallic materials used in gasket construction:

 

PTFE

Micah

Teflon

Rubber

Silicone

Graphite

Cellulose

Fiberglass

Ceramic fiber

Here is a brief description of some of these:

 

Mica: It is suitable for high-temperature applications because it has good heat resistance. Teflon or PTFE: Teflon also has good chemical resistance, making it a famous chemical brand.

Rubber: Rubber has good compression, and there are synthetic rubbers that can withstand extreme weather conditions. Fiberglass: Glass is a combination of silicate metal. It has good strength, heat resistance, and chemical resistance. Cellulose: This material is suitable for low and medium pressure and temperature applications.

Ethylene Propylene: Suitable for applications involving corrosive liquids and hydraulics.

3. Mixed marks:

 

Composite gaskets are made from a combination of metals and non-metals. Metal parts provide strength and stability, while non-metal components provide support and seal.

 

Some examples of composite gaskets include cam profile gaskets, metal sheaths, and spiral wound gaskets. This item is popular with raised faces, male-to-male, and tongue-and-groove flanges.

 

Likewise, it should be noted that composite seals are available for a variety of operating conditions, including high-temperature and pressure applications. In addition, they are relatively inexpensive when compared to metal brands. Care must be taken when handling them.