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How to Install Threaded 90 Degree Elbows: A Step-by-Step Guide

How to Install Threaded 90 Degree Elbows: A Step-by-Step Guide

Installing threaded elbows for the first time might feel overwhelming and intimidating. However, with the right tools and a step-by-step guide, you can quickly get your threaded elbows up and running. This blog post will provide a step-by-step guide on installing threaded 90 degree elbows. Plumbers and gas system installers typically use these elbows to connect two pipes at a 90-degree angle, and they play a crucial role in many plumbing and gas systems. Whether you’re a seasoned DIY or a beginner, this guide is for you.

What is Threaded 90 Degree Elbows?

People use threaded 90-degree elbows as components in piping systems to change the flow direction. They have an internal thread that connects to a mating pipe and provides a tight seal through pressure. These elbows are available in various materials, including wrought iron, carbon steel and stainless steel.

Advantages of Threaded 90 Degree Elbows

  1. Threaded 90 Degree Elbows provide a high degree of versatility. You can use them for any application, whether it’s connecting two pipes or redirecting the flow of material through an angle.
  2. Threaded 90 Degree Elbows are suitable for both low-pressure and high-pressure applications, which makes them perfect for plumbing tasks that require changing the direction and flow of fluids within a system.
  3. The fitting offers easy installation as it requires no welding or threading on most materials like stainless steel and copper pipe systems without any additional equipment needed other than wrenches or socket drivers, depending on your setup needs.
  4. It also provides a secure connection with superior vibration resistance due to its unique design structure that allows less fluid serpentine motion when compared to standard elbows that use bolts or rivets instead of threads in their construction features (which may eventually develop leaks due to wear over time).
  5. This type of elbow fitting is corrosion resistant, meaning it will last longer than conventional fittings since it resists rust caused by exposure to moisture, weather conditions, pesticides etc. making it ideal for outdoor projects such as swimming pool installations or garden watering supplies where longevity is a critical factor against water damage costs over time downstream pipes connected parts replacement costs and labour hours reduction/avoidance too.

Step-by-Step Guide to Install Threaded 90 Degree Elbows

Step 1: Gather Your Tools and Materials

Before starting your installation, ensure you have the necessary materials and tools. You’ll need threaded 90 degree elbows, thread sealant tape, a pipe wrench, a pipe cutter, and two pipes. Ensure the pipes you’re using are the correct size for the elbows. If you need more clarification, refer to the manufacturer’s instructions.

Step 2: Prepare Your Pipes

Cut your pipes to the desired length. Ensure the cuts are clean and straight. You can use a pipe cutter to make the cuts. Once your pipes are cut to the desired length, file any rough edges or burrs to ensure a snug fit.

Step 3: Apply Thread Sealant

To prevent leaks, apply thread sealant tape to the male threads on the 90 degree elbows. Wrap the thread sealant tape around the male threads three to four times in a clockwise direction. Ensure the tape covers the threads completely. Alternatively, you can use a thread sealant compound instead of tape.

Step 4: Connect The Elbows to the Pipes

With the thread sealant applied, screw each elbow onto the end of each pipe. Make sure to tighten the elbows firmly using a pipe wrench. Attach the elbows at a 90-degree angle to each other, and ensure the pipes are perpendicular to the elbows.

Step 5: Test For Leaks

Once the elbow and pipes are firmly attached, test for leaks. Turn on the water or gas supply and check for any leaks around the threaded connections. If you notice any leaks, tighten the connections further or reapply the thread sealant tape.


With the above guide, you can install threaded 90 degree elbows successfully. Whether installing elbows for the first time or needing a refresher, this guide covers you. Remember to select the correct size of elbows and pipes, apply thread sealant tape or compound to prevent leaks, and test for leaks after installation. Happy elbow installation.

How to Install Threaded 90 Degree Elbows: A Step-by-Step Guide

by Surya Steel & Alloys time to read: 3 min