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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...

Static and Dynamic o rings

A range of factors and application dynamics come into play when choosing a particular type of o ring.  You need to understand the type of seal exert you require, the dimensions, and even compounds.  Due to the nature of an o ring and its overall design, o rings use...

Gasket Sealants

Fortunately, no one gasket suits a range of applications, but rather we have a multitude of gasket sealants available to meet various specifications and requirements.  Ultimately, sealants are used to effectively ensure gasket seals.  Helping to extend a gasket's life...

COMBINATION SET PACKINGS

This product, as the name implies, are packing sets manufactured using a combination of material styles designed to meet specific application requirements

MODEL 102

A combination set of packing rings specifically designed for soot blowers. It comprises end rings in braided expanded pure graphite reinforced with stainless steel wire, plus intermediate rings of die moulded expanded graphite

Soot Blower Duties

Maximum Operating Temperature

Steam : +550⁰C

Oxidising : +450⁰C

Minimum Operating Temperature -200⁰C

Maximum System Pressure : 250 bar

Maximum shaft Speed : 20 m/s

Typical Applications

  • Designed primarily for soot blowers.
  • Can be used on travelling carriages, swivel tubes, rotary blowers and valve stems

Material Properties

  • Compatible with media in the range pH 0-14 excluding strong oxidising agents

Main features

  • All rings are manufactured to specific densities to provide the best possible performance
  • Good compressibility and recovery for high integrity sealing
  • Rings do not age or creep under hot or cold operating conditions
  • Inherent flexibility for working efficiently on small diameter shafts and spindles
  • Stainless steel reinforced end rings to withstand pressure surges

MODEL 103

A combination set of packing rings specifically designed for bowl mill worm shaft applications. It comprises rings of braided expanded pure graphite with separator gasket rings of flexible pure graphite, usually 2 mm thick. A typical set will consist of four braided graphite rings with a separator ring top and bottom and in-between each one, five in total

Bowl Mill Worm Shaft Duties

Maximum Operating Temperature

Steam : +550⁰C

Oxidising : +450⁰C

Minimum Operating Temperature -200⁰C

Maximum System Pressure : 250 bar

Maximum shaft Speed : 20 m/s

Typical Applications 

  • Designed primarily for bowl mill worm shaft applications at thermal power stations  
  • Can be used for valve stems 
  • Suitable for use with coal dust, hot dry ash, flue gas, hot air, gas and oil, superheated and saturated steam 

Material Properties 

  • Compatible with media in the range pH 0-14 excluding strong oxidising agents 

Main features 

  • Dimensionally stable under extreme operating conditions 
  • Inherent resilience for high integrity sealing 
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