Is a check valve necessary?
The check valve will help your water system maintain pressure when the pump shuts off and also prevent backspin, upthrust, and water hammer. It is recommended that at least one check be installed in all submersible well pump installations. Many well pumps have built-in check valves.
Can I use a check valve instead of 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.
Is a check valve the same as a backflow preventer?
A backflow preventer is to be used in high hazard situations and is meant to fully protect the potable water with their fail safe design while a check valve is used in low hazard situations and prevents backward water flow but it does not have the same fail safe components.
What happens if you don’t use a check valve?
A check valve is designed and installed into a line or pipe in such a way to allow the fluid to flow only one direction. When a check valve fails it allows the fluid o flow in either direction. This action may cause a pump to fail or the fluid to flow back through the pump when it is stopped stopped.
What is the function of check valves?
The Importance of Check Valves in Hydraulic Systems Block Pressure Spikes. The check valve will block pressure spikes back to the pump. Prevent Oil Lines from Draining. When a system is shut down, it is important to maintain oil in the lines. Block Oil Flow from the Accumulator. Prevent Oil Flow from the Online Pump to the Offline Pump.
Where should I use a check valve?
Inline check valves are used anywhere you want water to flow in one direction only. This might be in overhead watering in a greenhouse or a low sprinkler head in your yard where you do not want all the water draining to the lowest point in the system .
Where to put check valves?
Manufacturers recommend sump pump check valve placement be three feet (36 inches)above the sump pump. Many sump pump pits are around 24 inches (two feet) deep therefore the check valve would be placed 12 inches (one foot) above the sump pit cover or twelve inches above the basement floor.
Why is check valve used before outlet valve?
Check Valves are placed before outlet valve to prevent the backflow if there is a case of any pressurized system failure. If the pressure near the outlet increases, the fluid will have a tendency to flow backwards which may cause disruption in the total flow of the fluid in the system.