Answer the questions listed below for each of the following pumps: Reciprocating (1) What is the principle of operation, (how is fluid pumped)?
(2) For which service or systems onboard a vessel is each pump used?
(3) What are the pumping characteristics? i.e.; flow rates; operating pressures?
(4) If a pump is failing to operate, or is operating at reduced capacity, what are some points to confirm, or parts of the pump to check?