Gaskets are used to form a seal between materials, such as pipe flanges. They help address any irregularities and lower the risk of leaks, which are otherwise wasteful and damaging. These tools also help reduce vibration and improve mounting. Here's a brief guide to help ensure you're using the correct type of gasket for the appropriate application.

3 Different Types of Gaskets for Piping

1. Metallic Gaskets

Metallic gaskets are the preferred type for use in high-pressure applications. You can typically find them in industries such as oil and gas supply production and refineries. These tools are often referred to as ring gaskets and usually exist in either oval or octagonal shapes. 

Metal gaskets consist of stainless steel, low carbon steel, soft iron, a nickel-chromium alloy, or a nickel-copper alloy. While they're the ideal option for higher temperature applications, they can be costlier than other alternatives. However, if your application calls for metallic gaskets, using another type can lead to inefficient transport or dangerous leaks. 

2. Nonmetallic Gaskets

These seals, also known as soft gaskets, can be made out of several types of materials. Most commonly, they include polytetrafluoroethylene, graphite, rubber, or compressed nonasbestos Fiber (CNAF). They're the most affordable and available options and can easily compress without the need for excessive tension. 

Nonmetallic gaskets best suit low-pressure applications and lower temperatures, but there are a few exceptions depending on the materials. Consulting with an expert will help determine what meets your needs. 

3. Composite Gaskets

Composite gaskets are a combination of metallic and nonmetallic materials. They're often referred to as semi-metallic and can be customized based on the requirements of use. Because of the mixture of elements, you can use them for a diverse range of pressure and temperature applications. Although these tools are cost-effective, some compounds can be fragile and need to be handled with care.

When you need reliable gaskets, turn to the professionals at D & M Hydraulic Sales & Service in Waipahu, HI. Their company carries all of the leading hydraulic and pneumatic brands, offering everything from gaskets and filters to pumps and conveyor belts. With over 30 years of experience, their knowledgeable staff provides invaluable advice and value-added services. Visit their website to learn more about their inventory, or call (808) 671-2420 for more information.