Pulp and Paper Company Increase Mean Time Between Failure by 8-12 Times with DualPac® 2211 Packing
Chesterton products – Chesterton DualPac® Packing Technology
A pulp and paper company in Mexico was experiencing several problems with an old refiner. Previous packing was allowing for leaks and tended to last only a mere five days. On consultation with Chesterton experts, five rings of DualPac® 2211 Packing were installed and there were instant results, including an extended life and MTBR, and a huge yearly saving in funds for the customer.
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A pulp and paper company in Mexico was experiencing several problems with an old refiner (4% consistency, 500 rpm, shaft size 3.750″, packing size 20 mm). The mill is a small plant without much budget to buy new equipment. Flush water is not available for this equipment. Previous packing lasted five days: it needed daily gland adjustments. Pulp leakage was very high. The equipment conditions were poor, and the cross section is not standard. The customer wanted to exceed previous packing life by at least 4X (20 days) to reach a direct ROI. They needed to be able to justify their savings on packing consumption only.
Five rings of DualPac® 2211 Packing were installed.
The average MTBR of the 2211 packing was 46 days with a new sleeve. When a worn sleeve was used, the MTBR was more than 30 days. Gland adjustments are performed every four days. MTBR increased 8 – 12X. The customer saved monthly $570 US ($760 AUD) on packing use only. Labor for changing and adjusting packing was not quantified.
Yearly Savings: more than $6,840 US ($9100 AUD)
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