Hydronic radiator valves are one of the key components of your home’s heating system. They control the flow of hot water into your radiators, ensuring that they’re heated to the desired temperature. Over time, radiator valves can wear out and stop working properly. This article will take you through the steps of how to find a replacement hydronic radiator valve.
Step 1: Determine the Type of Valve
The first step in finding a replacement hydronic radiator valve is to determine the type of valve you need. There are several different types of valves used in hydronic heating systems, and the right replacement valve will depend on the type of valve currently installed in your system.
The most common types of hydronic radiator valves are thermostatic radiator valves (TRVs) and manual radiator valves (MRVs). TRVs are operated by a thermostat and automatically adjust the flow of hot water to your radiators to maintain the desired room temperature. MRVs are operated manually, with a valve that must be turned to adjust the flow of hot water.

Step 2: Check the Valve Size
Once you’ve determined the type of valve you need, the next step is to check the size of the existing valve. Most hydronic radiator valves come in standard sizes, and you’ll need to find a replacement valve that matches the size of your existing valve.
To measure the size of your existing valve, you’ll need to measure the diameter of the valve’s opening. This can be done using a tape measure or a set of calipers. Once you’ve measured the diameter of the valve, you can use this information to find a replacement valve of the same size.
Step 3: Determine the Valve Body Style
The next step in finding a replacement hydronic radiator valve is to determine the valve body style. The valve body is the part of the valve that is attached to the radiator itself. There are several different styles of valve bodies, including straight-body valves, angle-body valves, and corner valves.

To determine the valve body style, you’ll need to take a close look at the existing valve. Once you know what style of valve body you have, you can search for a replacement valve that matches the same style.
Step 4: Choose a Manufacturer
Once you have all of the necessary information about your existing valve, you can start shopping for a replacement valve. There are several manufacturers of hydronic radiator valves, and it’s important to choose a reputable manufacturer that produces high-quality valves.
Some of the top manufacturers of hydronic radiator valves include Honeywell, Buderus, and Taco. When shopping for a replacement valve, look for a valve that is made by one of these manufacturers or another reputable brand.
Step 5: Purchase the Replacement Valve
Once you’ve found a replacement hydronic radiator valve that matches all of your requirements, it’s time to purchase the valve. You can order the valve online or purchase it from a local plumbing supply store.
When ordering the valve online, make sure to double-check all of the specifications to ensure that you’re getting the correct valve. If you’re purchasing the valve from a local store, bring all of the information you’ve collected about your existing valve so that the store can help you find the right replacement.
Conclusion
Finding a replacement hydronic radiator valve may seem daunting at first, but by following these steps, you can ensure that you get the right valve for your heating system. Remember to determine the type of valve, check the valve size, determine the valve body style, choose a reputable manufacturer, and purchase the replacement valve. With the right replacement valve installed, your heating system will be running smoothly and efficiently once again. If you need assistance with installing your new valve, don’t hesitate to contact your local plumbing experts at aceplumbingrepair.com or give us a call at (844) 711-1590.