5 Flanged Butterfly Valve Installation Tips

There are a lot of types of valves that you can use for your plumbing system and one example is a flanged butterfly valve. In fact, ball valves come in different shapes and sizes and one of the most important types of valves to use on your plumbing system is the flanged butterfly valve. A butterfly valve is used to isolate or regulate the flow of water or gas and allows a quick shut off during an emergency. The flanged butterfly valves are favored by a lot of people since they are lightweight and require less support. This particular type of valve is used in high pressure systems. If you are planning to install this particular valve in your plumbing system, then here are some of the installation tips that you need to remember in order to properly install the valve.

1. Position the Valve in a Horizontal Orientation

The flanged butterfly valve offers a bidirectional flow but for you to get good results, it will be helpful if you install the valve assembly in a horizontal manner. Moreover, make sure that the lower disc edge also opens downstream to create the self flushing effect which means that the valve does not need to exert a high pressure in order for the valve to work.

2. Make Sure That the Valve Is Not Located Near Other Valves

When installing the flanged butterfly valve, it is important that you choose a location where the valve will not be too close with other valves and elbows since it will affect the performance of the valve. Moreover, it is also recommended that the valve should have at least six pipe diameter upstream and four pipes downstream to separate this particular valve from other valves and elbows.

3. Make Sure That the Disc Is Set To an Open Position

When installing the flanged butterfly valve, it is important that you rotate the stem clockwise to open the disc. This prevents damage to the seating of the valve upon installation. Once in an open position, cross tighten the bolting before setting the valve back to a closed position. For the specific tightness (torque) of the valve, always refer to the manual that comes with the valve upon purchase.

4. Remove Any Obstructions from the Pipeline

Prior to connecting the flange to the pipe, make sure that the pipelines are cleaned properly. Use an air line to remove solid debris that are found on the interior of the pipeline. If the pipeline has debris, this will also affect the efficiency of the valve.

5. Do Not Weld the Flanges While the Bolting Is Still Present

Before you weld the flanges to the pipe, make sure that you remove the flange bolting first as well as the valve assembly between the flanges. The problem is that if you weld the flanges to the pipe while the bolting is still attached heat damage may result as consequence to your valve, rendering the valve inefficient. To remedy this, remove the bolts first before you weld and cool the flanges before you reinstall the bolting.