Valves are mechanical devices that are used to control the volume of flow and pressure of fluids or gases. Closing, opening, or partially opening a passage through which the material passes regulates this flow.
Plumbing valves, such as taps for hot and cold tap water are the most noticeable types of valves. However, the other types of valves are compression, cartridge, disk, ball and repairing valves. The article introduces you all the valves one by one in detail.
Compression valves: this type of valve is most commonly used in the two- handle faucet. Compression valve consists of basically two valves that work in conjunction. One valve is used to control the flow of cold water, whereas the other valve controls the flow of hot water. When turned, each valve handle compresses against rubber washers, which in turn regulates the flow of water which passes through the valve.
Compression valves use stems of varying designs, but all designs utilize neoprene washers. However, compression faucets are much more prone to leaks due to the twisting motion which in time wears out the rubber seal at the bottom of the stem.
Then comes the cartridge valves that are also known as washer- less valves are operated by only one handle. This way these are different to the compression valves. Inside this valve a metal or plastic cylindrical cartridge is located. As you lift the handle, the valve stem raises and its holes align with the holes of the cartridge. On the other hand, as you twist the handle, cold and hot water mix and regulate water temperature.
Disk valve: these are also known as washer- less valves. Single- handled kitchen sink faucets are usually controlled with the disk valves. These are located within the faucet’s body. Each disk has a series of holes. Inlet hoses allow hot and cold water to enter the valve whereas the outlet hose passes the water through the valve spout. Leaks can generally be traced back to the cylinder or the three neoprene seals located below the cylinder.
Ball valve is an automatic flow control device. Regulating principle is the level of some free water surface. Ball valves basically consist of one handle under which a cylindrical cap is located. As the valve handle is turned to open the valve, the ball rotates to a point where part or the entire hole through the ball is in line with the valve body inlet and outlet, allowing fluid to flow through the valve.
Over time, persistent water leaks can result in an increased water bill and can even cut a channel into the surface of a sink or bathtub. Thankfully, repairing water valve is a relatively easy task which can be performed quickly.
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