What are the indications of a MFW pump seal water supply duplex strainer?

The indications of a Main Feed Water (MFW) pump seal water supply duplex strainer are crucial for maintaining the operational efficiency and reliability of the pump system. The correct choice indicates conditions where the strainer has accumulated enough debris or contaminants that it has progressed to a state where it requires cleaning, yet the system is still operational with a bypass in place.

Bypassing indicates that one side of the duplex strainer is diverting flow to ensure continuous operation while the other side is being cleaned or attended to. This is essential to prevent disruption in seal water supply to the MFW pump, which could lead to pump failure or increased wear on the seals themselves. Keeping the strainer clean is vital to ensure unobstructed flow and to prevent any operational issues that could stem from debris getting into the system.

Understanding this helps in maintaining the integrity and efficiency of the pumping system, ensuring that it operates optimally without risking damage due to faulty seal water supply.