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Tips for best o ring maintenance

If o rings are not maintained, leaks can occur, and water and other fluids can enter the appliance or application, and even product in the mix!  If this happens, damage can occur to internal parts and mechanisms, causing deployment failings, potential false readings,...

What you need to know about O Ring Lubricants

Silicone grease and lubricants aren’t just a nice to have for o rings, but they can quite often be a must-have.  However, with so many greases and lubricants to choose from, it can often be a minefield choosing the best ones and the right ones for your o ring and...

O Ring Replacement

Replacing an O Ring in pressure washer wands is probably one of the most common replacements you'll find when working with seals.  Unfortunately, O Rings don't last forever, and over time they do deteriorate, and you will require an O Ring replacement.  It's important...

Reasons behind seal failure and a look into seal replacement

Unfortunately, there are occasions where O-rings, in particular, fail.  The failure of these seals is not simply due to one factor, but various factors that can occur across a range of applications – hence why locating the exact cause of such problems is just that, a...

Gaskets and seals for Aerospace

Gaskets and seals used for aerospace applications and equipment must be of premium quality and to a substantially high standard.  They are used across a range of applications such as radars, antennas, lighting, access panels, electrical conductivity, pressure sealing,...

Finding the best sealing materials for Food Grade Applications

You will find rubber seals across various industries, providing an important element and operating as a vital fixing across a wide range of different applications and equipment.  However, these FDA gaskets must follow strict, set guidelines, in terms of their material...

The Evolution of Gasket Solutions

When we talk about gaskets and the history of a gasket, we must start at the very beginning.  What is a gasket?  Ultimately, a gasket is a manufactured seal that is used to fill the gap/space between two or more surfaces.  Gaskets are typically manufactured by cutting...

How to preserve your gasket

Gaskets and seals don’t last forever. However, they are designed, or they should be, last for a considerable period.  In this sense, it is vital to look at ways to preserve your gaskets in order to avoid any application downtime.  Downtime that involves additional...

Important Design Features of Rubber Sealings

When it comes to designing the perfect rubber sealing, there are a few design features to bear in mind to help achieve the optimum solution.  In this post, we explore these rubber sealing features further and provide information on the benefits and best uses for these...

Optimal Squeeze for an O Ring to be effective

A doughnut-shaped seal that is primarily used to stop liquids and air from escaping or getting into specific spaces is the function and role of an O Ring.  Also known as a mechanical gasket, O rings are designed to fit between a groove and a compression during the...

4 Standard Types of Ring Type Joint

4 Standard Types of Ring Type JointIntroduction

ring type joint is a specialised gasket, designed to be used with flanges that have grooves in them. The advantage of this type of gasket is that it is made of metal and so creates a seal that is very strong and reliable.

It will withstand the pressure of up to 1500 Bars and temperatures of up to 1000° Centigrade. Also, it is resistant to chemical corrosion. The gasket is fitted into the groove. The two faces are then bolted together. As the ring type joint is compressed, it creates a solid seal.

They come in a range of different metals, from soft iron to stainless steel. It is essential to choose the right type of metal and shape for the job at hand.

4 Standard Types of RTJ

There are four basic types that you will need to choose from. These types are based on the shape of the ring and the flange groove that it will fit into. You will need to select the right shape to fit the groove, but also consider the type of metal as well.

The metal that the gasket is made of is softer than the flanges themselves. This is to prevent damage to the flanges and to ensure that the seal is good.

R Oval RTJ

If you were to take a cross-section of this model, it would be an oval shape. It is designed to fit the standard flange. The oval shape is the first design to have been made.

R Octagonal RTJ

These will also fit a standard flange, but a cross-section of this one would reveal a hexagonal shape. This provides a tighter seal than the oval models.

RX RTJ

These are interchangeable with the previous models. The RX models, however, are wider than the previous type. This means that the two faces being joined will not be right up against one another. This is useful when compensating for vibrations, shock loadings, etc.

They can seal themselves and can be used up to a Class 5000 and up to 700 Bars of pressure.

BX RTJ

These cannot be interchanged with the other two types and must be used with BX flanges of the API type. It is capable of handling a lot more pressure. They can handle up to 1500 Bars of pressure.

They can handle more pressure because there is a small hole that is drilled into the to ring itself. This is what makes pressure equalisation on either side of the join possible.

The ring is slightly bigger than the groove that is made for. This is to create a high-pressure seal. The downside is that more careful fitting is required. You need to ensure that the separation between the two joined piece is nice and even all the way around.

This can handle a class rating of 2000 to 20 000 PSI.

Conclusion

Ring type joints provide strong seals that are useful in high-demand situations. With the right model, you can be sure that the seal will be reliable and will hold well. There are also more customized types of Ring Type Joint, but the standard ones are normally more than adequate.

Read the next article: Difference between Ring Type Joint and Raised Face 

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