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Manual ball valves are commonly used to operate shut-off valves, which control water flow and pressure in, for example, plumbing systems applications. Manual ball valves get their name from the metal ball inside the device, which has a hole through the middle. You can discover more in our [ball valves guide](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/ball-valves-guide).

### How do ball valves work?

When the valve is open, the hole is aligned with the pipes and permits flow. When it is closed, the hole is rotated perpendicular to the flow, shutting the valve off completely. The valve handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve status. The handle can also be set in half-turn or quarter-turn positions if required, reducing the fluid flow level and pressure.

### Types of manual ball valves

When choosing manual ball valves, pay attention to the connection type, in which they can be attached to the shut-off valve. These methods include compression, push-fitting, threaded end, and solvent cement sockets. Also, the seals, handle material and handle configuration options, for example, can the handle be mounted in both directions or is it fixed.

In some models, a ball can be operated with a screwdriver, this allows for installation in confined spaces. Manual ball valves are also differentiated by the materials they are made from, which include brass, iron, PVC, and stainless steel. The application of a manual ball valve is determined by this, for instance, a stainless-steel valve is much more capable of withstanding heat than a PVC valve.

### Applications

Ball valves are extensively used in plumbing systems for a variety of applications. Ball valves provide a reliable and efficient way to control water flow, isolate sections of the plumbing system, and facilitate maintenance and repairs.

- **Main Water Supply**: Ball valves are often installed at the main water supply line entering a building. They serve as shut-off valves that allow for isolating the water supply to the entire building in case of repairs, maintenance, or emergencies.
- **Fixture Shut Off**: Ball valves are used to control the water flow to individual fixtures such as sinks, toilets, bathtubs, and showers. They provide a convenient way to shut off the water supply to a specific fixture.
- **Water Heater**: Ball valves are typically installed on both the cold-water inlet and hot water outlet of a water heater. These valves allow for shutting off the water supply to the water heater during maintenance or replacement.
- **Appliance Connections**: Ball valves are commonly used to connect appliances such as dishwashers, washing machines, and ice makers to the plumbing system. These valves allow for easily shutting off the water supply for maintenance or repair purposes.
- **Pipe Repair and Maintenance**: Ball valves are utilized during pipe repairs or maintenance tasks, such as replacing a section of pipe or installing new fixtures.
- **Backflow Prevention**: Ball valves are an integral part of backflow prevention systems. These valves are installed to prevent the reverse flow of contaminated water into the main water supply. They are typically positioned at critical points in the plumbing system.
- **Water Metering**: Ball valves are sometimes used in conjunction with water meters to control water flow for measuring consumption accurately. These valves allow for shutting off the water supply to the metered area during meter maintenance or replacement.
- **Pressure Regulating Systems**: Ball valves can be employed in pressure regulating systems to control and maintain optimal water pressure within a plumbing system. They enable adjustments to the flow rate to ensure efficient water distribution.


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Ball Valves| Ball Float Valve | RS

Ball Valves

Shop our range of Brass Ball Valves. Browse our latest Brass Ball Valves offers. Find out more today at RS.

Brass Ball Valves | RS

Buy 15mm Ball Valves. Browse our latest Ball Valves offers. Fast and hassle free delivery.

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Buy from our selection of Ball Valves from Norgren. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

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Lever Valves | RS

A lever valve or lever ball valve is found in plumbing sytems and enables easy and quick interruption of the flow of liquid or gas through a piping system. The lever on the outside of the valve is moved manually to adjust the flow. When the handle is parallel to the pipe there will be a full flow through the valve, when the lever is moved to a position perpendicular to the pipe (90 degrees) the valve is closed completely and the flow stops.

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3 Way Ball Valves, Brass & Stainless Steel | RS

When you are looking forward to purchasing multi-port ball valves, you will come across few different options. Out of them, 3 way ball valves hold a prominent place. In fact, 3way ball valves are the most common multi-port ball valves that you can find out there as well.<h2>What exactly is a 3 wavy ball valve or a valve 3 way?</h2>A three-way ball valve is a type of popular multi-port valve with three ports of entry points that are connected to piping or tubing for gas or fluid to pass through. These ports are usually described as one inlet and two outlet ports or one outlet and two inlet ports depending upon the flow direction through the valve. 3 way ball valves are a cost effective way to control shutoff and flow paths within a single valve body.Depending on the internal design of the valve the following can be achieved; total restriction of flow, blocking of one outlet and allowing flow to continue in another direction, flow from one inlet directed to two destinations, diverting of flow from one destination to another and the mixing of two different fluids from different sources. 3 way ball valves are commonly used as shut-off valves, diverting valves, by-pass valves, selection valves or directional valves with the help of an L-type ball. The ability of these ball valves to blend fluids from more than one inlet makes them ideal for heating and cooling different media such as water, oils, and chemicals.How do 3 way ball valves work?Now you have a basic understanding on what a valve 3 way is all about. While keeping that in mind, let's take a look at how these 3 way ball valves work. You can find two main types of 3 way ball valves available in the market.L-pattern 3 way ball valvesThe first type of 3 way gate valve that you can find is the L-pattern style. These valves can shift the flow from one position to another through rotating the actuator or handle by an angle of 90 degrees. For example, turning the valve by 90 degrees will help you to divert the flow to a direction that is located 90 degrees. Likewise, you can rotate it for 180 degrees and completely rotate the flow. You will also be able to obstruct the movement of the flow by rotating the 3 way ball valve for 270 degrees.T-pattern 3 way ball valvesThese 3 way ball valves are known as mixer valves. That's because they are designed to mix two different mediums through the inlet flows. You will be able to open all three ports at a given time. It is also possible for you to use this type of a 3 way ball valve as a diverter. Hence, they are working in the form of L-pattern 3 way ball valves as well.What are the benefits of 3 way ball valves?There are some key benefits that you can get out of 3 way ball valves. For example, they are in a position to open and close without any friction. Due to the same reason, you will need to use less torque in order to turn the valve. Due to the presence of online maintenance, you will be able to save money and time as well. Another great feature that you can find in these valves is their self-cleaning mechanism. Hence, you can keep the valves free of debris at all times.

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