Successful application of ARC T7AR at a biofuel producer

ARC T7AR has been used to protect Super Duplex pumps at a biofuel production plant using corn to produce ethanol. 

The plant was achieving a MTBF of only 6 months in the corn mash pumps with a cost of over 5000 Euro to replace just the pump’s back plate. 

Each time the pump was replaced the mechanical seal was also replaced. 

This plant has a total of 22 pumps with the same problems.  

ARC T7AR was trialed in two of the pumps and inspection after 6 months running showed minimal loss of the composite. It is expected that the ARC T7AR will run for 18 months before any repair will be required. 

Of course no new replacement Super Duplex parts will be required as the T7AR can be repaired as often as needed. This plant has now protected 12 of the corn mash pumps with T7AR with all of the pumps expected to be protected in the future. 

Read more here

Any questions? 

Ask Nick Wilson 

ARC Applicator Engineer EMEA

Sealing Slurries with Chesterton Packing

Slurries are a mixture of solids in a liquid. Often this liquid is water. There are different types of slurries that give different challenges to seal the equipment. There are settling slurries (such as a slurry of sand in water), there are non-settling slurries (for example a mixture of corn starch in water) and dewatering slurries (like paper stock). 

Find more information on slurries on Slurries Webinar. 

Chesterton has a number of packings that are all designed to seal slurries. 

We have the 1830SSP Super Slurry Packing, GraphMax and the new 2211 DualPac. 

Sometimes it can be confusing which packing should be selected for which application.

Let’s make this simple:

      DualPac2211 should be used on heavy slurries such as slurries in mining applications. It should be especially used where the customer currently has a very short MTBR (Mean Time Between Repairs). DualPac has specifically proven itself in this type of applications.

     

GraphMaxshould be used on high temperature slurries where none of the other slurry packing can be used becuase of temperature limitations. Bitumen with solids is an examplke of this type of slurry.

1830SSP should be used in slurries where chemical resistance is required. These can be for example liquor applications in the Pulp and Paper industry.

 For more information contact Hans Dekker, Product Line Manager MPD.