Valves are used to regulate and stop the flow of water, and each type of valve has its own set of advantages and disadvantages, as well as applications for which it is best suited. The majority of valves in a domestic plumbing system are integrated into the water supply system and regulate the flow of pressured water from a water source or a private well. Depending on the complexity of the valve, they may be particularly fit for simple ON-OFF regulation of the water flow or for changing the volume of the flow of water.
A variety of valves are used in plumbing systems to join pipes and regulate the flow of water. Plumbing valves might be difficult to distinguish at first, but by taking the time to study these important plumbing fittings, you can gain a better grasp of their functions and designs. Let’s learn more about the different plumbing valves commonly used.
What Is a Plumbing Valve?
Plumbing valves are devices that regulate, direct, or control the flow of fluid by opening, shutting, or obstructing it partially. A valve is a mechanical device that regulates the flow and pressure of a fluid inside a system or process. So, in essence, it regulates the flow and pressure.
Valves can be found in both domestic and industrial plumbing. Valves are a valuable component of any plumbing system since they are used to modify the movement of liquid, regulate flow, or stop water in the event of an emergency. Valves come in a variety of styles, each with its own distinct design and function. Some of the most commonly used plumbing valves include gate valves, ball valves, globe valves, check valves, and pressure relief valves.
We often take valves for granted in our daily lives, yet they are an essential component of any plumbing system. There would be little to no control overflow and pressure if valves were not there. Furthermore, if one component of a plumbing system failed, the entire system would be rendered inoperable if not for valves. In a nutshell, plumbing without valves would be a disaster.
Types of Valves Used In Plumbing Systems
Depending on the needs, the following types of plumbing valves are used in pipes. Plumbing valves in a pipe system cost between 20 and 30 percent of the overall piping cost. And the price of a particular kind and size of plumbing valve might vary by a factor of ten.
That is if you select a ball valve over a butterfly valve to perform the same purpose. It might cost you more. As a result, the process plant’s economics, as well as the choosing of plumbing valves for operation, are critical. The following are some of the most frequent valve types utilized by Calgary plumbers.
Gate valves are among the most frequent valves seen in plumbing applications. Gate valves contain an internal gate that may be raised or lowered to regulate the flow of water to the opposite side. A knob at the apex of a gate valve is used to regulate the movement of the gate. These valves are easily damaged if the gates are not fully opened or closed because the water flow might wear away the metal pieces.
Gate valves are perfect for homes with repeated water hammer problems due to their regulated opening and shutting operation. It should be noted, however, that with prolonged usage, the stem and valve nut might become loose, resulting in leaks. Alternatively, if the valve is not utilized, it may seize and become inoperable.
- Gate valves do not obstruct water flow since the wedge within may retract entirely for uniform flow.
- Because gate valves open and close slowly, water flows or stops gradually, resulting in less pressure and noise in the unoccupied pipes that follow.
- The technique is laborious and time-consuming since the hand-wheel is operated manually.
- Repeated use degrades the valve and compromises its integrity, resulting in inefficient functioning.
A ball valve, as the name implies, is a valve with a plug that is a hollow, perforated, pivoting ball sitting inside a tubular body and that regulates the flow of fluids or gases by permitting them to pass through the hole at one end. The channel or hole refers to the hollow core of the spherical.
The position of the handle indicates whether or not the valve is closed or open. When the valve is closed, the perforation is orthogonal to the inlet and outlet, however, when the valve is open, it is oriented with the inlet and outlet.
- Simple to use
- When the ball valve is closed, the water flow is effectively sealed.
- Ball valves are simpler, lightweight, and more compact than gate valves of the same size.
- Flow control is uneven due to the ball valve’s normal stop interval of 45 degrees.
Globe valves get their name from the globe-like shape of their valve housing or body. They are the most often utilized valves in plumbing when flow must be regulated. The top twist knob or hand-wheel is twisted to raise or lower a plug-like stopper at the stem’s extremity.
This stopper controls the flow of water by pressing down on a fixed ring seat or aperture within the housing. Globe valves are often used to regulate the flow of water in hose ports and other outdoor or utility fixtures.
Globe valves, like gate valves, are an excellent choice if the user wants precise control over the flow of water. Because the plug may be carefully lowered or lifted, it is also simpler to prevent water hammer in houses where this problem is common.
- Excellent for plumbing systems where the flow must be controlled rather than entirely open.
- Properties for effective sealing for total shut-off
- Easy to care for
- Because of their ring seat construction, globe valves limit the flow of water, limiting the fully open movement of liquid.
A butterfly valve is yet another type of shut-off valve that is widely used to both separate and regulate water flow. A revolving disc is located in the middle of a butterfly valve. This moving part, like ball valves, is controlled by a quarter-turn of a lever. This plate flares open when the handle is cranked, enabling fluid to travel through the pipe. When the disc is closed, it prevents any fluids from moving. Butterfly valves, together with ball valves and plug valves, are members of the “rotary motion” valve family. This is due to the fact that they manage flow by deploying a rotating mechanism that begins flow closure.
These valves are much lighter than the other varieties since they are highly small, light, and relatively short.
- Compared to other valves, it is less costly and lighter.
- Butterfly valves are great for residential applications due to their small shape.
- Not very long-lasting, and the operation is pretty sluggish.
- Because the disk is buried in the flow, there is some pressure decrease.
- Over time, gasket replacement is required.
These valves are also referred to as one-way or non-return valves. Their role is to totally block the flow of fluid in one direction while allowing flow in the opposing direction. The internal disk is the closest to the complete opening position. They are employed when you wish to maintain the pressure of an operating pipe while also discharging the opposite side that is blocked and kept.
Check valves are frequently employed in the plumbing system to avoid backflow, which can lead to cross-contamination issues between various plumbing fixtures and appliances. They can be used to prevent water hammer (breakdowns) and pump drop.
Pressure Relief Valves
In the plumbing system, pressure relief valves are used to lower water pressure to the required limit and safeguard equipment or pipe systems from bursting. The mechanism is made up of a spring and a diaphragm that is adjusted to a specified limit based on the pressure of the water supply.
These valves are typically installed on hot water tanks to assist avoid overheating, bursting, and deformation caused by high pressure. Inside the valve is a spring mechanism that reacts to stress and compresses when it becomes too high. The spring’s compression opens the valve, allowing steam and water to escape and lowering or relieving pressure in the system.
- Applications are versatile
- Dependable functionality
- Safety benefits
- Due to the accumulation of high back-pressure, high-pitched sounds may be produced.
These various plumbing valves provide much-needed functionality by allowing water flow and pressure to be adjusted and controlled. If you are looking for a reputable valve manufacturer for your next project, look no further. Tubomart’s comprehensive stock of high-quality plumbing valves will sure meet your needs.