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Storing your gaskets!

A strange headline for a gasket article, we know.  However, it’s an important area and one, which in this sector is often overlooked.  When we think about most products or items in and around our homes and business, we will recognise that most come with manufacturing...

Flange Gasket materials – What you need to know

Getting the most out of flange gasket materials and ensuring the performance of the gasket is not affected when you come to use it, means several things must be taken into consideration.  For example, factors such as their design, how they’re manufactured, installed,...

Spiral Wound Gaskets and Sheet Gaskets

Gaskets come in a range of different shapes and sizes.  All are offering similar functionality; gaskets are produced using a range of different materials to suit a range and a variety of environmental factors, industrial uses, and product requirements.  When it comes...

Benefits of Kammprofile Gaskets

Used to prevent leakage, gaskets are constructed to fit between a range of different sizes and types of surfaces in order to provide the perfect seal.  Typically used in pipes and heat exchangers, gaskets are widely used as industrial sealants.  Kammprofile gaskets,...

Purpose of a Kammprofile Gasket

The ultimate purpose of a gasket is to stop leaks while being able to deal with varying levels of compression.  When it comes to Kammprofile gaskets, these are ideal for standard pipeline and heat exchanger applications.  As due to their grooved metalcore, with a...

Are your gaskets completely compliant?

In industries where gaskets are not just important but essential, there are numerous challenges to be faced and considerations to take on board.  This is especially true when it comes to making sure this “essential” element is also compliant.  With the implementation...

Everything you need to know about Manway Gaskets

When it comes to manway gaskets, we want to keep things simple, introducing them as the small sealing ring found in hatches/openings that are constructed for large tanks. Openings which give people access to the inside of the aforementioned tanks and vessels. The...

Why Colour Matters When Choosing Gaskets?

Gasket manufacturers have turned to colour coding gaskets to make the selection and categorisation of the product more accessible.   It is possible to identify the winding and filler materials that were used for fabrication by the colouring of the outer top side of...

Choosing the Perfect Gasket for Your Needs

The perfect gasket choice and fit is an essential component of engines, appliances, and industrial machinery projects. They are a fundamental part when engineering anything from power tools to oil drills. A high-quality manufacturer of gaskets and seals will use only...

How Do You Recognise a Quality Gasket?

A gasket is a very simple item that is reasonably inexpensive. Considering how gaskets work, you may be facing a costly bill should a gasket fail. Choosing a quality gasket from Specialist Sealing Products helps to create a seal that will last until well after the...

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.

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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