The NIBCO® brass swing check valve prevents backflow by automatically closing when fluid reverses direction. Swing checks may be installed in horizontal positions (or vertical with flow moving up). The NIBCO® brass swing check valve prevents backflow by automatically closing when fluid reverses direction.
What is a 3/4 check valve?
The 3/4-in SharkBite check valve is a general-purpose spring check valve that prevents the reverse flow of water. A flow of 2PSI (cracking pressure) is required to open the check valve.
What is check valve used for?
‘ The main purpose of a check valve is to prevent backflow in the system. Figure 1 shows an example of a check valve. A check valve relies on a pressure differential to work. They require a higher pressure on the input side of the valve than the output side to open the valve.
What is a spring check valve?
A spring loaded check valve (a.k.a. spring check valve) incorporates a spring to assist in closing the check valve. They are designed to close prior to fluid flow reversal. Preventing backflow eliminates the hydraulic shock also known as water hammer.
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.
The Control Devices ball-type check valve provides tight sealing, and can be used as a tank check valve for small compressors or as a component in pneumatic circuits. The valve body is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability .
What is a swing arm check valve?
A swing valve is a butterfly-style check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow.
What is a well water check valve?
Check valves used on well water system piping are used to hold pressure in the system when the pump stops. Check valves on well piping also prevent backspin of the well pump, water hammer and upthrust inside the pump.
What is a ball check valve?
A ball check valve is one of several different types of valves designed to permit the flow of material in one direction only. This type of check valve typically utilizes a spring-loaded ball inside a valve body.
