What is the valve under the sink called?

Under-sink shutoff valves, also called fixture shutoffs or stop valves, allow you to turn off the water to the sink (or other fixture) without having to use the home’s main shutoff. These inexpensive little valves rarely get used, and when they do, sometimes they leak.

What are the three valves under kitchen sink?

You may find 2 shut off valves (one each, for hot and cold water) or a three-stop valve for both water supply lines. The 3-way shutoff valve can also be shared between the kitchen sink hot water and the dishwasher. Under your kitchen sink, you should find a shutoff valve for the supply lines.

How do you remove a shut off valve from a sink?

To remove a compression-style valve, hold the valve body with an adjustable or open-end wrench, or a slip-joint pliers. Grab the compression nut with another wrench and turn it clockwise to loosen it. Then pull the valve off the copper tubing. Next, remove the old compression sleeve and nut.

What are the different types of shut off valves?

There are two types of main shutoff valves- gate valves and ball valves (shown in the photo). A gate valve is more common in older homes, while a ball valve is standard in newer houses. Often, you don’t need to shut off your entire water source when there’s a plumbing issue.