Does submersible pump need a check valve?
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Does submersible pump need a check valve?
Check valves are designed to permit water to flow in one direction and are a requirement on all submersible pump installations. Their job is to prevent water in the column above the pump and in the pressure tank from draining back into the well when the pump shuts off.
Can a check valve be submerged?
Will the valve be installed in a submerged condition? If the valve is installed in a submerged condition, this means that there will always be back pressure on the valve.
Which type of valve is used in submersible pump?
Spring-Loaded, Stem Or Cage Poppet-Style Check Valves Should Be Used With Submersible Pumps. They Are Designed To Close Quickly As The Water Flow Stops And Begins To Move In A Reverse Direction. Swing-Type Check Valves Should Not Be Used Because They React Too Slowly.
Is there a foot valve on a submersible pump?
Nearly all well pumping systems, one line jet pump, two line jet pump, or submersible well pump, require a foot valve installed at the bottom of the well piping. The foot valve prevents water from flowing backwards out of the jet pump and well piping back into the well when the jet pump stops operating.
Do I need a check valve if I have a foot valve?
We recommend using only one check valve or foot valve in a pump system. A foot valve should be at the inlet to the suction line of turbine, centrifugal, and jet pumps. If an additional check valve is required, it should be placed after the pressure tank to allow the pump and discharge pipe to remain pressurized.
How close can a check valve be to a pump?
Many well pumps have built-in check valves. Even if a pump does have a built-in check valve, we recommend that a check valve be installed in the discharge line within 25 feet of the pump and below the draw down level of the water supply.
Do I need a check valve on my shallow well pump?
Do I need to use a check valve or foot valve with this pump? Yes. The check valve should be installed in the suction side piping as close to the source of water as possible.