How to Install Shutoff Valves 

How to Install Shutoff Valves 1

Shutoff valves, also known as stop valves, offer versatile solutions for linking water supply lines to fixtures. Whether you’re a DIY enthusiast or tackling plumbing projects, this guide provides step-by-step instructions on installing new shutoff valves. Here’s what you need to know:

Table of Contents

Materials You’ll Need:

  • New shutoff valves
  • Pliers or wrenches
  • Emery cloth
  • Compression nut
  • Compression ring
  • Escutcheon plate
  • Fixture supply lines
  • Safety glasses (recommended)

Step 1: Prepare for Installation

Begin by turning off the main water supply to your home. To prevent potential water backflow, open the faucet associated with the line you’re working on to drain any remaining water.

How to Install Shutoff Valves

Step 2: Remove Old Supply Line

Cut the old supply line, leaving enough space between the cut and the escutcheon plate to accommodate the new fitting.

Step 3: Prepare the Pipe

Slide the compression nut over the supply pipe, positioning it as far back as possible to create ample working space. Smooth the end of the pipe using an emery cloth to remove any rough edges.

Step 4: Assemble the New Valve

Place the compression ring onto the end of the supply pipe. Position the new valve securely and squarely over the ring, then thread it onto the nut. Initially, hand-tighten the valve onto the nut.

Step 5: Secure the Valve

Use one wrench to stabilize the valve while keeping it square. With a second wrench, tighten the nut further to securely attach the valve to the supply pipe.

Step 6: Connect the Fixture Supply Lines

Repeat the process for attaching and tightening the existing supply lines from the fixture to the new shutoff valves. Ensure a snug fit, taking care not to over-tighten.

Step 7: Restore Water Supply

Once the valves are securely in place, turn the main water supply back on. Open the new valves, and turn on the faucet associated with the line to remove air from the system.

Step 8: Check for Leaks

After purging the air from the lines, carefully inspect the newly installed valves for any signs of leaks. Address any leaks promptly.

By following these steps, you’ll successfully install new shutoff valves, providing improved control over your fixture’s water supply. Remember, safety glasses are recommended throughout the process to protect your eyes.