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Check Valves: Often Forgotten – Till They Cause Catastrophic Damage

Integrity management of piping systems involves functional testing, inspection and maintenance of components which are identified as “safety critical”.  Typically, these component types include control valves, isolation valves, pressure relief valves and instrumentation – but exclude check valves.  However, recent incidents involving check valve failures have resulted in fatalities, equipment damage and toxic releases.  These […]

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Pump Trips and Check Valve Closure

Pump Trips and Check Valve Closure Systems running multiple pumps in parallel can undergo serious equipment and piping damage during a pump trip caused by a power outage or pump mechanical failure. Uncontrolled reverse flow in the system can occur and if improperly selected check valves are used it can result in pumps running backwards […]

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