What Is An O Ring In Plumbing?

Last Updated On August 8, 2022
What Is An O Ring In Plumbing

An O ring is an important part of many plumbing systems. It is a small, rubber ring that helps create a watertight seal. If you are unfamiliar with what an O ring is and what it does, don’t worry! 

In this blog post, we will discuss everything you need to know about O rings in plumbing. We will answer the question “what is an o ring in plumbing?” and talk about the different types of O rings. 

We will also discuss the benefits of using O rings and provide some tips on how to choose the best O ring for your needs. 

In this PlumbingNav guide, we will cover:

  • Everything you need to know about an O ring in plumbing
  • Different types of plumbing O rings
  • Considerations when buying an O ring
  • How to replace an O ring

What's In This Guide?

      Everything You Need To Know About An O Ring In Plumbing

      So, what is an O ring in plumbing? As we mentioned before, an O ring is a small gasket that helps create a watertight seal between two connections. There are literally thousands of types and sizes out there. 

      O rings are often used in plumbing applications to help prevent leaking between one pipe and another pipe. You will find them in your bathroom and kitchen faucet, and at connectors or fittings. 

      In most cases, plumbers will use plumber’s tape, putty, or pipe dope for threaded connections and O rings or a similar rubber gasket for unthreaded connections.  

      O rings are also used in many other applications, such as in automotive and mechanical engineering. They have many benefits. 

      First, O rings are relatively inexpensive and easy to install. They are also versatile and can be used in a wide variety of applications. A proper O ring seal can help prevent leaks, reduce wear, and improve the efficiency of mechanical systems.

      Did You Know? Household leaks waste an average of 10,000 gallons of water every year.

      did you know What Is An O Ring In Plumbing

      Different Types Of Plumbing O Rings

      The O ring material makes the biggest impact on where and when to use it. 

      The most common type of O ring is the elastomeric O ring. Elastomeric O rings are made from synthetic rubber elastomer material with excellent resistance that can deform elastically (or stretch) without breaking with an elastomeric seal. This makes them ideal for use in applications where there may be some movement or vibration. 

      Another common type of O ring is the PTFE (polytetrafluoroethylene) O ring. PTFE O rings are made from plastic that is known for their durability and chemical resistance (such as the chemicals used in the best drain cleaners). However, PTFE can’t stretch and contract easily. 

      Finally, you can also find both solid and hollow metal O rings. Metal is strong and generally provides high-quality temperature resistance and resistance to high pressure when you need a mechanical seal for commercial or industrial applications. 

      Unlike O rings made from natural rubber or plastic, metal O rings can succumb to corrosion when in contact with petroleum oil or hydraulic fluids, even if its strength makes it the best option for the task at hand.

      Considerations When Buying An O Ring

      When choosing an O ring, it is important to consider the application in which it will be used. 

      You will need to choose an O ring that is compatible with the materials it will come into contact with and that can withstand the temperature, water pressure, and other conditions present in the application. 

      If you are unsure about what type of O ring to choose, consult with the product’s user manual or contact a professional.

      How to Replace an O Ring

      O rings are an essential part of many plumbing systems, so it’s important to know how to replace them if they become damaged. Fortunately, the process is relatively straightforward and can be easily completed with just a few tools. 

      This step-by-step guide will show you how to replace an o ring in a plumbing system, even if you aren’t a master plumber.

      First, you’ll need to gather the necessary tools and materials. You’ll need a replacement o ring that is the same size and shape as the one you’re replacing, a pair of pliers, and some sort of lubricant. 

      Once you have everything you need, begin by shutting off the water supply to the affected fixture. This will prevent any water from entering the system while you’re working.

      Second, use the pliers to remove the old o ring from its location. Be careful not to damage the surrounding area as you remove it. Once the old o ring is out, apply some of the lubricants to the new O ring. 

      This will help it slide into place more easily. Finally, use the pliers to install the new o ring into its proper location. Make sure that it is seated correctly before turning on the water supply again. 

      Replacing Your Toilet O Ring

      While most people think of faucets when talking about O rings, you also have a giant O ring in your toilet. While a very similar process, some DIY plumbers may feel intimidated due to the size of the O ring relative to a faucet O ring.

      If you need toilet repair, start by verifying that you don’t need a new toilet flapper or supply hose. If you still notice a leak coming from the toilet bowl, you may need to replace the O ring. 

      Watch the following video to learn how to replace the O ring in your leaking toilet before you run out and buy a new toilet:

      Frequently Asked Questions Regarding Plumbing O Rings

      What is an O-ring on a faucet?

      An O ring is an item designed to prevent leaks in different plumbing fixtures and hardware. 

      How much does it cost to replace an O-ring?

      For a professional plumber to replace an O ring, you can pay for 1 – 2 hours at an average rate of $60/hr. You’ll also need to pay for the cost of the service and the parts. 

      How do you fix an O-ring water leak?

      If you want to fix your O ring yourself, you do it by turning off the water to the fixture, accessing and removing the old O ring, lubricating the new O ring, applying it, and restoring water to the fixture.

      Meet Your Plumbing Navigator

      Plumbing Navigator: plumbing advice

      About Plumbing Navigator

      We’re passionate about all things plumbing, and love sharing tips, “how-to”, and reviewing the latest products to help make your project a success!

      Learn More Plumbing Tips

      Want to tackle more plumbing projects? Check out these helpful guides!

      How to Check If Septic Tank is Full
      What is a Septic Tank Complete Guide
      How Does A Septic Tank Work
      best septic tank treatment products

      Got Plumbing Questions? Search For In-Depth Answers Below!

      About Plumbing Navigator

      We write about "all things plumbing," helping you navigate common questions, repairs, and the best plumbing products on the market.

      About Plumbing Navigator

      We write about “all things plumbing,” helping you navigate common questions, repairs, and the best plumbing products on the market.

      Recently Published Guides