Machinery Protection

Instrumentation for shutdowns and alarms are monitored, repaired, and upgraded as necessary to prevent catastrophic failures of reciprocating equipment. The following parameters are commonly considered critical for constant monitoring:

• Oil pressure,
• Discharge temperature,
• Jacket water temperature,
• Liquid knockout level,
• Vibration,
• Lubrication rate, and
• Amperage.

An important element of machinery protection is periodic testing of alarms and shutdowns. In locations where there are regular, documented testing programs, tests are conducted as often as weekly, but more commonly monthly. Longer intervals are also used. One thing is clear: You cannot rely on shutdown protective devices if they are not being tested and documented regularly.

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