ARC Industrial Coatings, Power-Fossil, FGD-Recirculating Slurry ...

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Technical data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. Chest
FGD Recirculating Slurry Pump 

Power-Fossil — Desulfurization ARC MX1, BX2*, S2 and 855 Coatings Case Study 015

Challenge

Solution

Results

Issue This plant’s FGD system was experiencing a loss of efficiency in their absorber recirculation pumps. After only 18 months of operation, the motor-driven current values increased from 11.1 Amps to 12.1 Amps - an increase of over 9%.

Preparation ■■ Abrasive blast to Sa 3 with 5 mil (125 µm) angular profile Application 1. Application of 6mm ARC MX1 on the suction wear plates, and 3-4 mm of ARC BX2* to protect the volute body

Inspection Pumps are now operating with two years mean time between repair (MTBR) while maintaining the same efficiency level.

Root Cause Severe corrosion/abrasion of the pump volute and impeller resulted in reduced efficiency, requiring shutdown to repair or replace with new pumps.

Estimated 2 Year Savings

2. Topcoat with ARC S2 to provide a smooth flow efficient surface *ARC BX2 is the “Bulk” package size of ARC 897 $=USD 

New pump casing before application of ARC

Two new pumps protected with ARC

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.

Completed application

A.W. Chesterton Company EN23593.14 860 Salem Street, Groveland, MA 01834 USA © A.W. Chesterton Company, 2014. All rights reserved.  Registered trademark owned and licensed by A.W. Chesterton Company in USA and other countries, unless otherwise noted. WWW.ARC-EPC.COM

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