EXPERIENCE Adherence to National Industry Standards Procedures and

EXPERIENCE § Adherence to National Industry Standards, Procedures and Guidelines 2 Furmanite Confidential - 1/9/04

Motor and Pump Base Foundational Repair 3 Furmanite Confidential - 1/9/04

Foundational failure is one of the most common factors leading to vibration in the pumps and motors If foundational failures are not addressed, you will experience significant particle and coupling wear which may result in premature replacement and unscheduled shut downs 4 Furmanite Confidential - 1/9/04

Equipment Anchor Points Substantial amounts of force are placed on footpads and equipment anchor points These areas are usually the most affected by grout pack deterioration and create voids or ‘Soft Foot’ due to steel stress and result in vibration and unsound foundations 5 Furmanite Confidential - 1/9/04

Foundational Failures Can Occur From Inferior material composition at time of pour Cracked or deteriorating grout packing and concrete due to service Corroding reinforcing steel in the basin due to improper instillation Chemical attack to the basin 6 Furmanite Confidential - 1/9/04

Previous Vibratory Solution Methods Included Shimming the Anchor Areas Although this method has been widely accepted for aligning the Pump and Motors it may have adverse affects when related to vibration If the Machine Level is out of alignment It is recommended to Mill to near perfect conditions • This method is only recommended if you have taken steps to ensure the Foundation and Soul Plate are Sound 7 Furmanite Confidential - 1/9/04

REPAIR OPTIONS FOR RESTORATION Structural repair using reinforcing steel bars Water control (Leak Sealing) Epoxy Pressure Injection Pump and Motor base grout removal & repair This can be lengthy and typically not the best option Soil Stabilization Void Fills Demo and Replace Laser level weld up and mill down 8 Furmanite Confidential - 1/9/04

STRUCTURAL REPAIR Applications Machinery base repairs Pump and motor base repair Exciter basins Structural support base repair Basin cracks Pedestal restoration Epoxy/Urethane pressure injection method 9 Furmanite Confidential - 1/9/04

Solutions n EPOXY INJECTION: – Low Viscosity – Moisture Insensitive – Easy Application – Must be done under pressure – Extreme High Strength Ø – Chemical Resistance – 100% Solids Ø 10 12, 000 PSI epoxy materials are available on the market This means 0% Shrinkage Furmanite Confidential - 1/9/04

Epoxy Injection Basin Repair Epoxies consist of 2 or more blended components to make a material specifically designed for certain applications including chemical resistance, compressive strength Epoxies used for grout pack solidification and basin injection have a tested compressive strength ranging from 8, 500 psi (when applied at 73°f and 1 day cure) to 12, 000 psi (at 73°f and 3 -28 day full cure) The injection method is minimally invasive requiring holes to be drilled in hollowed locations and can be pumped under high or low pressure • It is recommended that BOTH the motor and pump are removed 11 Furmanite Confidential - 1/9/04

Epoxy Injection Issuesn EPOXY INJECTION: Ø Cannot be used in flowing water Ø May not fully penetrate cracks if viscosity is high or if the wrong material is selected Ø Chemical attacks can be prevalent Ø Temperature limitations Ø 12 Typically less than 350º F Ø Proper cure time MUST be given to reach ‘working time’ Furmanite Confidential - 1/9/04

Epoxy Injection Basin Repair – Select the right material! In June 2011, under request from nuclear customers, the injection epoxies were tested by an independent Engineering consultant. Upon selecting a qualified engineering and testing company, the goal was to ensure and validate the proper material compressive strength as indicated under the specifications. Three samples were submitted and machined into cylindrical shape prior to testing. A compression machine as specified by ASTM D 695 -10 Section 5. 1 was utilized. Load was applied to each specimen in accordance with ASTM D 69510 Section 9. 2. Results Testing was stopped once the 3 - day strength requirement of 10, 000 PSI had been met. All three specimens had achieved greater than the desired 10, 000 PSI with one sample achieving 15, 035 PSI. At the applied load, the specimens had been compressed to a height of 0. 33 -0. 37 inches with a diameter of 0. 85 -0. 90 inches. Upon observation, no cracking was found. As well, the specimens began to rebound slowly after the load was removed. Within 1 hour the specimens had rebounded between 57% and 66% of their original height. Within 24 hours, all specimens had rebounded approximately 98% of their original test height. 13 Furmanite Confidential - 1/9/04

Epoxy Injection Basin Repair Where Can Epoxy Injections Be Performed? Pump Basins Sole Plates Exciter Basins Concrete Foundations Structural Reinforcement Applications Reinforcing Steel Corrosion Mitigation 14 Furmanite Confidential - 1/9/04

Water Control 15 Furmanite Confidential - 1/9/04

WATER CONTROL Urethane Injection Process Solution for problems such as: Freeze / thaw damage Corrosion of reinforcing steel Erosion of the structure Mineral deposits Loss of dry environment Repair sealant capabilities: Thin enough to penetrate “hairline” cracks Work in flowing water Bond to wet surfaces Remain flexible and inert after quick curing Safe in Potable water situations 16 Furmanite Confidential - 1/9/04

WATER CONTROL n URETHANE GROUT INJECTION: – Cost Effective – Non-Toxic – Single component capability – Void Fill Capability - Vertical and Horizontal – Can be used as a flexible joint , gasket or pressure seal – No Down Time - Work can be completed while components are online – Stops water intrusion in cracks, joints and pipe penetrations – Can be used in NSF potable water applications 17 Furmanite Confidential - 1/9/04

BENEFITS OF CONCRETE & COMPOSITE REPAIR n RESOLVES VIBRATION PROBLEMS n STOPS WATER LEAKAGE n STOPS REBAR EXPANSION n REPAIRS SURFACES n SOIL STABILIZATIONS (PERMIABLE SOILS) Ø 18 SUB BASEMENTS ARE VERY PRONE TO SOIL SHRINKAGE ESPECIALLY NEAR WATER SOURCES e. g RIVERS/RESEVIORS n REPAIRS PIPING, TANKS , ELIMINATES COSTLY SHUT DOWNS OR REPLACEMENTS n MAINTENANCE -ADDS LIFE TO THE STRUCTURE n SAFETY Furmanite Confidential - 1/9/04

Leak Sealing 19 Furmanite Confidential - 1/9/04

ONLINE LEAK SEALING Original developers of on-line leak repair services in the 1920’s Leak repair for steam, hydrocarbons, gas, air, chemicals and liquids Engineering solutions for leaks from 1600 F to cryogenic Leak repair from vacuum up to 6300 PSI Sub-Sea leak sealing 20 Furmanite Confidential - 1/9/04

LEAK SEALING APPLICATIONS Holes in pipes or valves Cracked welds Packing glands Flange leaks Valve bonnets Threaded fittings Exchanger leaks Pressure seal valves Turbine horizontal joints 21 Furmanite Confidential - 1/9/04

Introduction Plant Components Plant components repaired by leak sealing include: 22 n Flanges n Heat Exchangers n Valves Glands n Pressure Vessels n Bolted Valve Bonnets n Nozzles on Vessels n Pressure Seal Bonnets n Ball Valves n Straight Pipe n Transformers n Elbows n Wellheads n Tees n Turbines (half joints) n Valve Bodies n Floating Tank Roofs n Expansion Joints (bellows) n Insulation Joints (electrical) Furmanite Confidential - 1/9/04

Standard Applications – Leaks from Valve Glands Typical Injection Points in Valve Glands: 23 Furmanite Confidential - 1/9/04

Standard Applications Bolted Flange / Gasket Leaks 24 Furmanite Confidential - 1/9/04

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Standard Applications – Leaks from Pipes and Piping Components Clamp Arrangements Piping Configurations (some examples): 26 Furmanite Confidential - 1/9/04