What is water pump inlet?
The water pump circulates coolant through the engine, and the water pump inlet is a connection that allows coolant to move from the engine into the water pump.
What should the pipe diameter at the pump inlet be?
The following changes and additions to pumps and piping may influence acceleration head: Increase pipe diameter to reduce friction loss and liquid velocity. Make sure there is straight pipe for at least 10 to 15 pipe diameters at the pump inlet to minimize turbulence.
How to reduce friction loss in a pump inlet?
Use sweeping elbows rather than 90-degree elbows. Use a larger pump to allow for slower stroke speed. (This can be an expensive solution.) Use suction piping 1.5 to 2 times the size of the pump’s inlet port to reduce friction loss and help ensure an adequate supply of liquid into the pump chamber (s).
What happens when you close an inlet valve on a pump?
As liquid flow is stopped by the closing of one inlet valve, the opposite chamber’s inlet valve is opening. The pressure spike carried by the flow of diverted liquid rushes into the chamber being filled and slams into the diaphragm, stretching and weakening it until premature failure occurs.
What causes a pressure spike in a pump inlet?
The magnitude of the pressure spike is a function of the liquid’s mass, flow rate velocity and the rate of the change in velocity. If the water hammer or pressure spike is of sufficient magnitude, it can damage system inlet components such as plastic pipe, gauges, seals and other components.
How to remove your lawn sprinkler pump for repair?
Unscrew the other fitting from the pump, which goes to the sprinklers. Remove any screws or bolts that hold the pump to the floor. These pass through holes in the base of the pump, but are not always used. The pump can now be removed for repair. Pump models vary in their exact configuration.
How do you reconnect a dip tube in a water heater?
Attach the dip tube to the inlet nipple and insert it into the tank. To reconnect a cut pipe, purchase a compression coupling from the hardware store and insert it over both of the cut ends of the pipe. For best results, wrap the threads of the coupling with plumber’s tape or joint compound.
How do you shut off a hot water heater?
Turn off the cold water inlet valve on top of the water heater. If no valve is present, you may have to shut off water at the meter or pump. Connect a garden hose to the hose bib near the bottom of the water heater.
How is the sprinkler pump connected to the irrigation controller?
Turn of the power supply to the pump. Most systems use a pump start relay switch wired to the irrigation controller that activates the pump each time the controller opens a valve. If this is the case, unplug the controller and the power will be disconnected to the pump.