Case Studies

Issue

Challenged by a particleboard manufacturer to increase MTBR of the hydraulic sealing system on a large up-stroke particleboard press.

Root Cause
Existing OEM reinforced stacked rubber sets lasted an average of 15 months before excessive leakage required press shutdown and the cylinders to be repacked.

Goal
Provide a reliable sealing solution that increases MTBR, eliminates the need to adjust packing sets, and decreases downtime during maintenance repairs.

Split seal design with the wipers protecting the hydraulic system.

Recommendation

• The split Chesterton 11K EZ Stack Pack design eliminated the need to completely disassembly the equipment cutting installation time in half versus conventional stacked designs

Material

• Dual material combination enables usage against slightly worn equipment (AWC 800/AWC 805) eliminating leakage
• Solution included a wiper, anti-extrusion ring, and seal spacer to block contaminants, and minimise extrusion and movement of the seal set while in operation

Improved Performance & Reliability 

• Improved reliability and production 
• Reduced downtime and maintenance costs 
• Easy installation and quick repair 
• Maintenance free; no gland adjustments 

 MTBR improvements: 5X 

 Of the 12 main cylinders, 8 sets were still in operation after 6 years with the Chesterton sealing sets. 

Patented Chesterton 11K split design.

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. Chesterton product range includes mechanical seals, packing and gaskets, industrial lubricants and coatings.

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 EN23701. Issued 03/2015.

Technical data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. Chesterton Company disclaims all warranties expressed or implied, including warranties of merchantability and fitness for a particular purpose. Liability, if any, is limited to product replacement only. Any images contained herein are for general illustrative or aesthetic purposes only and are not intended to convey any instructional, safety, handling, or usage information or advice respecting any product or equipment. Please refer to relevant Safety Data Sheets, Product Data Sheets, and/or Product Labels for safe use, storage, handling, and disposal of products, or consult with your local Chesterton sales representative.