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Month: April 2018

Maintenance

Centrifugal Compressor and Lube System Troubleshooting Checklist

Posted on April 29, 2018 by dan

Symptoms Possible Causes Excessive Vibration 1-4-5-6-8-9-10-11-12-13-14-15-22-23-24-25 Compressor Surges 6-7-16-17 Loss of Discharge Pressure 18-19-20 Low Lube-Oil Pressure 27-29-30-31-32-36-37-38-39-40-41 Excessive Bearing Oil Drain Temperature 2-3-21-28-33-34-35-42-43-44 Units…

Maintenance

Reciprocating Compressor Troubleshooting Checklist

Posted on April 29, 2018 by dan

Symptoms Possible Causes Noise Vibration Knocking 7-8-9-10-11-12-14-15-17-18-25 Vibration 3-11-14-18-19-25-32 Pressure Discharge Pressure High 3-25 Discharge Pressure Low 1-3-5-23-24-32 Inter-Cooler Pressure High 2-4-6-27 Inter-Cooler Pressure Low…

Maintenance

Troubleshooting Guidelines

Posted on April 29, 2018 by dan

Step 1 Define the desired performance. Define the deviation from that performance. This is the real problem. Step 2 Analyze the cause of the deviation,…

Maintenance

Specification for Reconditioning Rods

Posted on April 29, 2018 by dan

Obtaining proper coatings to achieve acceptable rod life depends largely on (1) good communications between user and coating vendor, (2) selection of qualified coating facilities,…

Maintenance

Rod Coating Composition and Compatible Packing

Posted on April 29, 2018 by dan

Figure 800-15 summarizes composition of the various types of commonly used coatings plus compatible packing materials.

Maintenance

Rod Undercoating

Posted on April 29, 2018 by dan

In some instances, a metallic undercoat such as nickel or nickel alumide is applied between the base metal and the hardface coating. Metallic undercoats are…

Maintenance

Rod Electroplating – Porous and Non-porous Hard Chrome Plating

Posted on April 29, 2018 by dan

Electroplating procedures, such as chromium plating, have been widely used for many years. The combination of high hardness, corrosion resistance, and low coefficient of friction…

Maintenance

Rod Flame Plating – Linde Detonation Gun Process (D-Gun)

Posted on April 29, 2018 by dan

Flame plating procedures such as Linde’s Detonation Gun provide a bond which is both mechanical and metallurgical in nature. The Detonation Gun procedure is a…

Maintenance

Rod Flame Spray – The Plasma Spray Process

Posted on April 29, 2018 by dan

Plasma spray coatings are produced by passing powdered material through a specially designed gun which ionizes an inert gas to form a plasma. Flame temperatures…

Maintenance

Rod Flame Spray – The Metal Spray Process

Posted on April 29, 2018 by dan

Metal spray is the process of applying molten metal to the surface of the rod to form a hard, wear-resistant coating. The coating material is…

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