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Types of Flanges

Businesses in a variety of industries rely on flanges to join pipes or components together or to keep equipment secured to a surface. When it comes to choosing the best types of flange for your processes, you’ll want to take the time to research the different options...

Threaded Flange

Threaded flanges are probably the most recognisable of all flanges due to their screw thread design that is used to connect it to the pipe. Threaded flanges, also known as screwed flanges (for obvious reasons), require a male and female thread to create a connection...

Slip On Flange

A slip-on flange can also be known as a hubbed flange, which, as the name suggests, has a hub with a very low profile. Why is this important? Because this type of ring type joint gasket has an internal diameter larger than the connecting pipe, allowing you to slide it...

Weld Neck Flange

Also known as tapered hub flanges or high hub flanges, weld neck flanges are a specific type of gasket with a protruding ridge and long neck used to connect pipework and provide you with a high-quality seal. Weld neck flanges, in particular, are a popular choice when...

Nitrile vs Viton® – What is the Difference?

As you start to make a decision about what type of O-rings to purchase for your business, you might wonder what material is the most suitable for your unique needs. Every business operation has different requirements for their O-rings, such as the temperature,...

Aflas vs Viton

When it comes to choosing O ring suppliers in the UK, you’ll find that there are a wide range of materials on offer for you to choose from. Many people find that the options can seem quite overwhelming, with some materials having similar properties but offering...

EPDM Gasket

Both the automotive and construction industries have started to use EPDM gaskets more frequently in recent times. This rubber material is UV light resistant and has many fantastic properties that make this part highly effective for a wide range of processes. Keep...

Metal Gaskets

When comparing gaskets for use within your business processes, you’ll find that these can be made from a variety of materials. Metal gaskets are a very popular option, offering many advantages over other materials. When looking at sealing product options, make sure...

AFLAS o ring

O rings come in many different dimensions, thicknesses, and materials. And it is the various different materials that o rings can be manufactured from that make each o ring unique and suitable for specific applications. In fact, there are hundreds of different types...

O Ring Vulcanization Process

With years of o ring knowledge and experience in o ring vulcanization, we're one of the leading experts in providing the right sealing solution for you. To view our full range, visit our O-ring product page, with a wide selection and something to match every...

See our latest catalogue for all the services we offer.

Types of industrial gasket material

Types of industrial gasket materialDifferent industry sectors will use different types of gaskets and different types of gasket materials.  

And of course! 

Different industrial gasket materials will be much better suited to some industrial processes and applications compared to others.  As different tolerance levels, levels of resistance and more come into effect. 

This post looks at different types of gasket materials and some specific sectors they are used in. 

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Types of gasket material 

Graphite – now found to be an affordable option for various industries, graphite sheet gaskets perform well in extreme temperatures and chemical services. Some graphite gaskets also come with anti-stick coatings helping in easy gasket removal and cleaner flanges. 

Expanded PTFE – used to seal flanges with minimal torque loads. Soft and conformable PTFE is ideal for glass-lined pipe flanges, making them suitable for most chemical applications and processes within the food and beverage industry. 

PTFE – often cut from sheet PTFE, this material has endless benefits for applications. With outstanding insulation capabilities and a chemically inert material, PTFE also provides endurance in high-temperature applications. 

Non-asbestos – ideal for steam, oil, and water sealing. 

Rubber sheet – this is the most common type of gasket and is available in numerous styles. The most common is nitrile, neoprene, EPDM, and SBR.  One of rubber’s biggest benefits is that it is quick to return to its original form once stress or load is removed. 

Metal gaskets – manufactured from rugged metal components and controlled PTFE or graphite density. Depending on the application’s requirements and specifications, metals come in soft, hard, and semi-soft materials. 

To check out the range of sealants to accompany your gasket of choice, make sure to check out our post on Gasket Sealants to find out more. 

Gaskets and industry 

Automotive 

The gasket material of choice here is silicone. 

Materials that are oil and fuel resistant are required in this sector so manufacturers will make use of materials such as Nitrile and Viton, and EPDM. 

In, vehicle engines you will find graphite and non-asbestos gaskets to be most suitable as they are resistant to fuels and oil and perform well under high temperatures. 

Oil and gas 

Spiral wound gaskets are the most popular choice in this sector, including ring type joints, cam profile gaskets, and those manufactured using non-asbestos materials. 

Sealing materials in this sector must be suitable for high temperature and high-pressure environments.  

As such, manufacturers can also opt for composite materials such as graphite. 

Food processing 

Taste and taint-free products must be available for use in this sector. This is why you will find most applications using silicone gaskets, suitable to withstand high temperatures and prevent bacterial growth. 

When operating in steam and high-pressure environments, Non-asbestos and graphite materials will also be suitable for steam applications and EPDM for water applications. 

Drinking water/water 

Those with good UV resistance will be best utilised in these sectors. Meaning materials such as EPDM, neoprene, and non-asbestos material gaskets will fit the bill perfectly. 

Pumping 

EPDM and neoprene are most commonly used for pipe gaskets. However, for those processes requiring corrosion-resistant materials, gasket manufacturers in the UK opt for nitrile, Viton, PTFE, and non-asbestos to be more than suitable. 

Aerospace 

This industry uses a wide variety of gasket materials; however, most will need to be accompanied by quality and compliance certification. Certification includes a certificate of conformity, allowing full traceability on all gaskets in use. 

Rail 

Approval on gasket materials for use in this sector is required, with materials such as silicone, EPDM, and nitrile often the materials of choice. 

Those that require sealability against fuel, oil, and water will opt for manway gaskets in Viton, EPDM, and non-asbestos materials. 

Petrochemical 

Flange gaskets made from non-asbestos materials are those found in the petrochemical industry. 

For those operating under high-pressure conditions, spiral wound gaskets will be used. 

Quality and safety are the top leading priorities in this sector; hence, those fuel, oil, and corrosion-resistant materials are key. 

Materials such as nitrile, Viton, silicone, and PTFE gaskets in this industry should be high quality to ensure an effective seal with PTFE offering excellent chemical resistance. 

Pharmaceutical 

Silicone rubber is the preferred choice in this sector; however, flange gasket PTFE seals are used as a low bacteria growth and clean liner to pipe gaskets. 

Gasket manufacturers offering expanded PTFE help provide a sealing solution for uneven flanges and those subject to harsh chemicals. 

At Specialist Sealing Products, we offer high-quality gaskets in a range of types, styles, and sizes, as well as various materials to suit all requirements and specifications. 

Check our stock online or call us on 01535 274 776

Find Out More Here!

Reference video: Technical Piping

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