SIM 3330 Reciprocating Pump model shows a tank with a variable feed supply of water. Water from the tank is pumped away by two reciprocating pumps in parallel, each pump has a discharge buffer vessel.
Each pump has a suction and discharge valve with a start permissive interlock system to teach correct pump operation.
The pumps also have a discharge over pressure protection system feeding back water to the hold vessel, when too high discharge pressure is reached.
The feed flow of water is controlled by a hand valve.
The level in the vessel is controlled by a cascade level control system. The signal from the level controller can either be used to directly control the speed of the pumps or can be used to drive a flow controller, controlling a valve on the outlet liquid line.
The minimum flow recycle flow is controlled by a flow controller on the pumps discharge.
The outlet pressure of the system can be varied to test the pumps performance.
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