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Different elastomers for o rings and various applications

An elastomer is a primary raw material used for most o rings. They are typically manufactured as gum rubber or manufactured synthetically, and surprisingly today, there are approximately over 32 different synthetic rubbers now available.  Elastomer compounds will...

Spiral wound gasket thickness – what’s best?

It is often recommended that using a thinner gasket type/material will result in better sealing performance.  Why?  Because thinner gaskets tend to require much less gasket stress to provide applications with the perfect seal, they also have an excellent response to...

Choosing the correct oil seal application

Choosing and using the proper sealing devices within oil and gas applications can be vital when preventing dirt, dust, water, and other debris from potentially getting inside and contaminating products.  Of course, all rubber materials and seals will provide a range...

Nitrile rubber, NBR, and Buna-N – how well do you know your o ring materials?

A widely used elastomer, Nitrile, Buna-N, or NBR rubber, are all oil and fuel resistant and provide a great level of strength, making them a popular material for seals across various industries.  Suitable for a range of applications, this versatile rubber material,...

Optimum squeezing force for an o ring

It is true that the more squeeze you place on an o ring, the tighter the seal it will provide. In essence, the more squeeze (compression) you apply, the greater the force between the o ring and its mating hardware.  And ensuring you have the perfect seal is all...

O Ring Squeeze

The squeeze and shrinkage on an o ring are vital to understanding as these factors stand in the way of your application either experiencing a perfect seal or your application suffering from leaks.  You can measure the shrinkage of an o ring during...

Keeping your o rings bonded

EMI o rings. Those seal ring gaskets are made of silicone compounds, combining environmental sealing with electromagnetic interference protection.  Consisting of metal or metal-coated particles, silicone o rings are filled with silver, silver aluminium, or nickel...

The importance of mechanical seals when reducing water consumption in mining

Environmental considerations are at the top of most industry's agendas in the 21st century as companies evaluate and improve operations, processes, and systems.  Conserving water in mining is one such area that is now being investigated further with the rotation of...

How choosing the correct gasket reduces risks

Health and Safety across any industry are vital, especially so in industrial facilities and settings.  Why?  Because harmful leaks and emissions must be avoided at all costs to avoid serious accidents or injury to your teams and property.  That’s why having the right...

How to tighten your bolts perfectly

How to tighten your bolts and which tools you should use to achieve the perfect seal is not as seamless and straightforward as we would like. Various factors come into play in these situations, such as bolt grade, size, and even application type.  Tightening torques...

Are your gaskets completely compliant?

Are your gaskets completely compliant.jpgIn 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 of stricter standards and new measures to address accountability, can you afford for your manway gaskets to be non-compliant? 

Today, this accountability surrounds being responsible for Non-Accident Releases (NARs) and how a business manages these is of the utmost importance. 

Common problems with manways 

The most common issues found with manway gaskets and man lid door seals include: 

  • Loose bolts 
  • Missing gaskets 
  • Deteriorated gaskets, and 
  • Misaligned gaskets 

All of these issues relate to manway door seals and man lid door seals and often occur due to the varying compression sets / creep they face.  These compression sets occur regardless of whether you’re using a rubber gasket or Teflon material type gasket and do impact on sealing, hence affecting NARs in a big way. 

You may often find that additional torquing may also be required when bolts to loosen.   

However, the impact on seals and gaskets from using wrenches and other such tools is that they can compress and stress elastomeric gaskets too much, causing them to split or crack.  (To achieve the perfect sealing, 25% compression is the recommended amount of pressure to be used). 

In the case of Teflon or Garlock gaskets, fittings can also be easily damaged if excess over-torquing is used; rendering most gaskets unable to be reused with no guarantees for optimal sealing if these fittings require additional re-torquing throughout their usage. 

Find Out More Here!

A solution to staying compliant 

If you believe you manway gasket to be non-compliant, or you’re concerned about NARs and your experiencing inconsistencies when it comes to how manway gaskets are installed, you need to start looking for long lasting and indeed reusable seals. 

Using a precision engineered gasket that incorporates a sealing bolt torque which can be maintained, as well as not being able to fall into manways, and where the installation is simplified, will ultimately help you to improve the safety of manway door seals and man lid door seals as well as keep you fully compliant. 

Using the Parker Hannifin Sure Torque Gasket is one great solution to provide you with all of the above and so much more. 

Eliminating all issues relating to compression set and creep due to its carefully designed compression control and stainless-steel inset.  Designed for universal use, the Parker gasket fits all nozzle and lid designs with ease. 

It is also reusable, maintains bolt torque, it doesn’t require bolt re-torquing, and it is a gasket that can’t fall into the manway. 

The Parker design is also one of the first to allow for a more simplified design approach allowing for increase speed in securement, without the worry of spills and leakages. 

The rubber mixing capability and seal numbers also ensure full traceability back to the raw materials used in the manufacturing process. 

This particular gasket provides a wide range of elastomers to work alongside and combat many of the sealing challenges faced by industries today. 

It is possible to achieve an effective and compliant seal with existing gaskets and Specialist Sealing Products has a range of gaskets available to suit a wide variety of industries and businesses. 

Selecting the right material is critical to ensure long term sealability; and with an increase in accountability for NARs as well as more inspections and expectations to use safer technologies, now is the time to check your manway gaskets are up to scratch. 

The costs of failing to have robust and reliable seals in place, far out way anything else.   

With the threat of large and often unlimited fines, working and using the right gaskets is about improving the safety of manways in all capacities and ensuring the best outcome for all parties. 

Contact Specialist Sealing Products to find out more about the manway gaskets we have available and how we can keep your gaskets fully compliant. 

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