Types of Maintenance The following figure represents the different types of maintenance. Breakdown or Reactive Maintenance Preventive Maintenance Drawbacks of Preventive Maintenance Predictive or Condition-based Maintenance Some of the commonly used predictive maintenance techniques in the industry are mentioned below. ...
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Refrigerant Screw Compressor
The Mechanical Engineer
Refrigerant Screw Compressor This article focuses on a semi-hermetically sealed twin screw refrigerant compressor. In semi-hermetically sealed compressor, the motor and the compressor are enclosed in a bolted casing. Bolted casing helps in accessing the components inside the casing during ...
Screw Compressor Working Principle
The Mechanical Engineer
Screw Compressor Working Principle There are many types of screw compressors in terms of the number of screws used to compress the gas. If a screw compressor contains a single screw, it is called a single screw compressor; similarly, for ...
Mastering the Function and Selection of Rotary Airlock Valves
The Mechanical Engineer
Rotary Airlock Valve (RAV) A Rotary Airlock Valve (RAV) locks or prevents the movement of air or gas from one system to the other while maintaining the flow of material through it. In general, a rotary airlock is used to ...
HYDROSTATIC TEST FOR PRESSURE VESSELS
The Mechanical Engineer
Hydrostatic Test for Pressure Vessels A hydrostatic test is a test for the pressure vessel to test its strength and leak tightness by pressurizing the vessel using incompressible liquid up to the test pressures recommended by the standards. A pressure ...
TEFLON (aka) PTFE
The Mechanical Engineer
Introduction to Teflon (aka) PTFE Teflon is a trademark given by the Dupont company for the chemical compound they developed called polytetrafluoroethylene in short PTFE. The chemical structure of PTFE is shown in the following figure. Poly means “many” tetra ...