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A Pulp Mill Chooses DualPac® 2212 to Increase Their MTBF


Chesterton products – Chesterton DualPac® Packing Technology


A pulp mill was having issues maintaining their original packing solution under the high pressure from their fan pump. Lasting only six-to-nine months before needing replacement, they were experiencing high maintenance times and costs. Instead, they installed Chesterton DualPac® 2212, which is still needing little-to-no adjustments.

Products featured in this case study:

DualPac 2212 Image of Dualpac Technology

DualPac 2212.


A pulp mill in Canada was having some issues with their fan pump (30 x 36 DG). It was pumping water at a pressure of 4 – 6 bar, 885 rpm. The existing packing solution was lasting only six-to-nine months before needing a complete repack. The gland needed to be adjusted frequently and, in some cases, a partial ring replacement between repacks was necessary. The customer wanted to increase the MTBF and to reduce maintenance costs. The goal was 18 months desired running time before a repack.

DualPac 2212 was used at this mill to help it increase output

The pulp mill wanted to increase their MTBF.


A DualPac® 2212 packing 5-ring set was installed on each of the stuffing boxes as shown below.

A DualPac® 2212 packing 5-ring set was installed on each of the stuffing boxes

Installation profile.


The customer installed the DualPac packing in June 2019 and was running at least six months without issues and with no need for gland adjustments. The customer is so impressed with the performance of the test packing set thus far that they have already ordered another set for one of their 14 x 16 pumps.

About Us


Chesterton® is a world leader in helping process industry companies and manufacturers improve the reliability and efficiency of their rotating, stationary, and fluid power equipment platforms. We are known across a wide range of industries for our award-winning pump and valve sealing solutions, applications expertise, equipment maintenance and wear-prevention products, and knowledgeable hands-on local service​.

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Issued 06/21

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