Table of Contents
Where should a check valve be installed?
Check valve can be installed in horizontal or vertical piping runs, with the flow running upward. Mounting for vertical installations is critical.
Should a check valve be installed vertically or horizontally?
When installing a check valve, a horizontal line is always preferred, because it takes gravity out of the equation.
When should a check valve be installed?
On a submersible well pump installation, if your well water pump does not have a built-in check valve [many submersible pumps do have a check valve], a line check valve should be installed in the discharge pipe within 25 feet of the pump and below the drawdown level of the water inside the well.
What is the primary concern when installing a check valve?
Mistakes in installation can manifest in valve leakage or failure, compromising the integrity of the entire piping system. Swing check valves, double-door check valve, or silent spring-assisted axial flow check valves, all control flow through a slightly different mechanism.
How far should check valve be from sump pump?
Best height ( unless owner’s manual states otherwise) is two to three feet off of the top of the sump pit. This way your sump pump motor doesn’t have to work as hard as when your check valve is in lower position.
Can a check valve be installed upside down?
The compromise is that the valve can be installed in other orientations. Installation upside down is not recommended because of the possibility of dirt build-up in the bonnet.
Can we use swing check valve vertically?
We hear many people ask, “Can swing check valves be installed vertically?” The simple answer to that question is yes, swing check valves can be installed in both directions.
Can spring loaded check valves be installed vertically?
Generally, yes. The spring is there to keep the valve seated and closed during low or no flow conditions. It is better to install it vertically with the flow going downward to keep moisture and debris from sitting on top of the flapper / spring system.
Does a check valve go before or after a pump?
The most common installation is at the pump. A check valve may be installed on the suction side of the pump to maintain the pump’s prime in the event of a pump shutdown. A check valve will be used commonly on the discharge of the pump to prevent backflow from the downstream system, when the pump shuts off.
Does check valve reduce water pressure?
Check valves do not reduce pressure, they actually help maintain it. In the setup you describe, it might work. However you will DEFINITELY need another check valve on the outlet of the tank to prevent the high pressure flow from backwashing in through the bottom, since there is no shuttoff/float valve there.
Is a check valve necessary on a sump pump?
Sump pump check valves are an important part of any sump pump system. Installed in the discharge pipe leaving your sump pump, the sump check valve prevents your pump from having to re-pump water it has already discharged.
How many directions can a fluid flow in a check valve?
Abstract. Check valves are one-way or nonreturn valves that open with fluid movement and pressure, and close to prevent backflow of the pressure to upstream equipment such as pumps and compressors. In fact, check valves allow the fluid to flow in only one direction.
What is the difference between a check valve and a foot valve?
Check valves and foot valves are designed to stop water from going backwards when the pump shuts off. Check valves are normally on the discharge side of pumps, and foot valves are on the intake of pumps.
Where is the best place to install a check valve on a sump pump?
Sump pump check valves should be installed close to the floor after the pump, as shown by arrow #1. This will reduce the amount of water that drains back to the pump after each cycle.
Where should I install check valve on sump pump?
The most suitable location for a sump pump check valve is close to the floor level to minimize the volume of water that drains back at the end of each pumping cycle and it is a convenient location for easy servicing or replacement of the valve.
Can you install a backflow preventer upside down?
There are backflow preventers that can be installed horizontally, vertically (up or down) and other orientations that can make an installation easier. The key point to realize however is that they can only be installed in the orientation that the approval agency has determined they will work in.
Can butterfly valves be installed upside down?
Can the butterfly valve be installed upside down? The answer is no. The reason is very simple. Prior to installation, the inside of the pipeline inside the butterfly valve body should be cleaned to ensure that the media flow space is clean and free of impurities.
Can a backflow preventer be installed backwards?
The safety benefit is lost and the boiler can’t get any makeup water. Therefore this isn’t a common problem.
Can a ball check valve be installed horizontally?
The Atomac ARV2 ball check valve will function properly in a horizontal application when installed correctly. First, ensure the pipe line is relatively level. (When installed horizontally the valve may not provide adequate back flow protection in a gas service).
Can foot valve be installed horizontally?
The flapper type check & foot valves work using gravity. They use a disk and rubber or leather flapper attached at one side of the opening. These are generally installed vertically but can be installed horizontally as long as the flapper closes down.
Can a lift check valve be installed vertically?
Lift type check valves are available in straight through, T, or WYE pattern. This type of check valve may be installed horizontally or vertically but those lift checks relying on gravity must be installed so that the disc travel is vertical. Lift check valves require that flow enters below the seal.
Can you put a spring check valve in the horizontal?
Yes a spring type check valve can be installed horizontally because the spring will close the valve.
What is a vertical check valve?
The H-700 Vertical Check Valve is designed for vertical flow (not suitable for down-flow applications). The disc shaft is fully guided to insure proper alignment between disc and seat. The valve has an angled body design to provide full flow area, and has a two-piece body to facilitate maintenance.
Can you install a double check valve vertically?
If installed in a vertical configuration, it must be a minimum of 6 inches from floor, and no higher than 5 feet to the centerline of the #2 shut-off valve. All assemblies must maintain a sufficient clearance from any wall, and 24 inches in front of assembly to ensure accessibility for maintenance and testing.
