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Why Should You Invest in Quality Seals?

While industrial seals might seem like something you could save a little money on, this is one part that we don’t recommend cutting costs on. A quality seal will offer many benefits to your business and operations, so it’s worth taking the time to find a solution...

All you need to know about Neoprene O rings

Popular in the refrigeration industry, neoprene o rings are also growing in popularity across a wide range of other sectors due to their incredible resistance to hazardous materials. Also known as chloroquine o rings, these o rings provide excellent resistance to...

Why all sealants are not the same

It's important to understand just how critical it is to use the correct type of sealant. It's especially the case when working with heavy machinery or any industrial situation. You don't want to have to worry about whether your sealing products are working correctly...

How to understand O-rings and their design

O-Rings are a critical component for the proper sealing of specific pipes. They have to sit within a specified groove, which can vary based on the hardware used. That's why it's important to note the various types of o-ring groove design to understand better what kind...

The importance of gasket thickness

Choosing the right gasket material for specific applications is vital. However, gasket thickness is also a feature that must not be overlooked in the decision-making process. Choosing the right gasket thickness can help when you’re experiencing challenges with...

How Temperature Impacts Gasket Performance

When using a spiral wound gasket, there are many things you need to keep in mind. The most common issue we hear people discuss regarding gasket performance issues at high temperatures. If you are using a gasket for the first time at a new temperature and notice it...

How Thick Should Gasket Paper Be?

When creating gaskets, one of the most common questions we receive is regarding gasket paper thickness. You’ll find there are various options on the market, which come in different sizes and thicknesses. Today we’re going to discover what gasket paper is and how you...

O-Rings for the Beer Industry

O-rings offer a wide range of applications, and many people aren’t aware of just how versatile an o-ring can be. When working with o-ring suppliers in the UK, you’ll soon find out that we supply these to a range of businesses, including to breweries. Today we’re going...

Gasket Safety

Gaskets and seals are vital components for applications requiring a solid seal, helping prevent leaks and stop gases and other chemicals from escaping.  However, over time, and due to the fluctuating temperatures, compression sets, and exposure to chemicals, seals do...

Is fluorosilicone rubber o rings a sustainable choice?

Fluorosilicone rubber, also known as FVQM or MFQ, contains 23-28% fluorine and has nearly the same physical and mechanical properties as standard silicone rubber as matches on par with their flexibility at low temperatures.  However, due to its fluorine...

Kinds of Spiral Wound Gaskets

Different kinds of gasktetsSpiral wound gaskets are made from winding the strips of metal as well as filler material. The winding material and filler are changed according to the needs of chemical characteristics and compatibility. Spiral wound gaskets are mainly divided according to the materials used in them. There are different kinds of spiral wound gasket material that you may come across. Go through following details to explore what each one of those has got:

What are the Different Kinds of Spiral Wound Gaskets

Metallic gaskets

These are made from the different combinations of metal in specific size and shape. Lens rings gaskets and ring joints gaskets are the ones that usually fall under this type. These are more suitable for high temperature and extreme pressure applications. To seal them, they need high bolt load that facilitates sufficient deformation. Metallic gaskets have a tremendous ability to handle sudden fluctuations in pressure and temperature. It can withstand the pressure limit of up to 10,000 psi, but it also means that there will be hardly any compression. The bolt force creates an extreme pressure on seal interface that allows the gasket metal to flow into the flange material structure thereby producing a tight seal.

The common problem that metallic gaskets face is that they are highly susceptible to the galvanic corrosion. However, this issue can be overcome by keeping gasket material very close to the flange material.

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Semi-metallic gaskets

These kinds of gaskets play an important role to curtail the gap between metallic gaskets and non-metallic gaskets. These are mainly manufactured from the metallic and non-metallic material as a result of that they possess features of both the materials. The metallic part gives sealability, while the non-metallic portion offers resilience and strength. Semi-metallic gaskets are manufactured to tolerate any form of the condition that involves extreme pressure and high temperature.

The winding material selection is made by fluid concentration, cost of the material, corrosive nature and operating temperature. Stainless steel 321, 316 and 304 is a frequently used material for winding. In some of the cases, alternative materials can be used. Graphite and asbestos are also used as general filler material, but in extreme temperature conditions, graphite is a most preferred choice. Gaskets feature outer ring manufactured from the carbon steel material to achieve precise positioning. In case of exceptional applications, they also come with the inner ring. To produce best results, the process fluid and ring material must be compatible with each other.

Non-metallic gaskets

These are manufactured from the materials which are easy to compress such as silicone, PTFE, graphite, NBR, etc. They can resist the corrosion but only up to the limited temperature. Non-metallic gaskets have many restrictions when it comes to the high-pressure conditions. Flat ring gasket form can be used with raised face flanges, while full face gasket is easy to go with flat face flanges.
The difference between the kinds of spiral wound gaskets mentioned above will definitely help you to pick a right type of gasket according to your requirement. So go ahead, make an informed decision and order your chosen gasket here.

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