Category Title
Reciprocating compressors in process gas and gas gathering service are subjected to harsh operating conditions that affect reliability. In particular, the compressor valves are expected to cycle through at least half a billion openings and closings in a frequently dirty, corrosive environment. It should be no surprise that they are frequently less reliable than we would like. The valves also affect the compressor's efficiency and a careful compromise is required to balance reliability against efficiency. Recent research and development has focused on improving reliability without decreasing efficiency significantly. Some years ago, the moving elements in a valve were considered the major cause of failures. Extensive research on materials has greatly improved this situation. The work required for the successful switch to plastic materials for most applications is discussed. Once problems with the moving elements were solved, and valve lives increased, problems were experienced with the springs. Work done to offset the effects of wear, corrosion, fatigue and surge on spring life are described.
Your Price $195.00
List Price $195.00