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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...

5 Common Gasket Failures

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...

What are Ring Type Joints?

What is Ring Type JointsDefinition 

Ring Type joints are made using a Ring Type gasket and Ring Type joint flange. The RTJ flange has a groove on its face. The RTJ gasket fitted into this groove. The bolts are tightened, and this compresses the gasket. The gasket will fill in the gap and so create a very strong metal on a metal seal.  

While these may have raised faces, the faces are to ensure easier accessibility rather than better pressure containment.  

The RTJ is a relatively simple join. Just line up the gasket and ensure that it fits into the groove with dual sealing surfaces. Once that has been done, it’s a simple enough matter – the ring will automatically centre itself as you tighten the bolts.  

Usage 

These advantages of these kinds of joints are: 

  • They are extremely simple to execute, as long as you position them correctly to start off with, sealing the join is simple.  
  • very strong seal is created. This seal will stand up to high heat and high pressure.   
  • You can choose from a range of different metals when it comes to the material the gasket is made of. You can choose a stronger metal in those situations where more demand is placed on the seal. You can also choose the metal that is most resistant to corrosion. 
  • Because the join is metal on metal, the seal will last longer and resist the effects of chemicals passing through it well. 
  • The sealing pressure increases as the pressure used during the process increases. This makes the joint capable of handling not only high pressure but fluctuation pressure as well.  

 The disadvantages of these kinds of joints are:  

  • Moisture and dirt can build up in the groove of the face before it is sealed. This could lead to damage to the sealing surfaces. This, in turn, could make the join more likely to leak.  
  • If you want a strong seal, you have to be sure to align the gasket properly. They have to stay in alignment throughout the whole process cycle. This could become an issue of the metals you are joining are not the same. Say, for example, one metal expands more than the other when heated up. This could cause a misalignment of the seal and potential leaks. 

This kind of join is ideal for high temperature and high-pressure situations where a really strong seal is required. Metallic gaskets do last better when it comes to corrosive chemicals than other types. This makes this an ideal join for chemical processing plants.  

Currently, it is widely used in petrochemical plants, on oil drilling platforms and in oil refineries as well. It is ideal in industries where:  

  • Corrosive chemicals are used.  
  • Temperatures exceed 427° Centigrade. 
  • Fluctuating pressures or high pressures up to 20 000 PSI.  
  • It is easy to carry out maintenance on the joint. If it is regularly cleaned, it will withstand corrosion for a lot longer.  

In general, choosing the right metal for the gasket, and correct flange type will make this a useful join for most industrial processing applications.  

Read the Properties of RTJs here. 

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