Is it Necessary to Install a Toilet Check Valve?

As we all know, toilets are essential fixtures that we use every day, yet many people may not fully understand them. So, is it necessary to install a backflow valve in the toilet? Let's explore this topic together.

一、Is it necessary to install a backflow valve in the toilet

Yes, this component is essential because it plays a crucial role in preventing water backflow. When sewage attempts to return through the pipes, the backflow valve can directly stop it, preventing the toilet water from being sucked back. Additionally, if a backflow valve is not installed, there is a high chance of unpleasant odors during use.

二、What are the key points for installing a toilet backflow valve

1、The structure is similar to a shut-off valve, and both the valve body and the disc are designed alike. The upper part of the disc and the lower part of the valve cap are equipped with a guiding sleeve. The guiding device allows the disc to move freely up and down. When the medium flows downstream, the disc opens under the pressure of the medium and falls vertically onto the valve seat to prevent backflow. For direct lift check valves, the direction of the inlet and outlet channels is perpendicular to the valve seat direction, while the upright lift check valve has the same direction for both the inlet and outlet channels, resulting in lower flow resistance compared to direct flow types.

2、Disc check valves have a structure where the disc rotates around a pin inside the valve seat. This structure is relatively simple and generally can only be installed in horizontal pipelines, with poorer sealing capability, so installation should be done with caution.

3、The valve that allows the disc to slide along the centerline of the valve body is a new type of check valve. It is compact and lightweight with better processing technology. It represents one direction of check valve development, although its fluid resistance coefficient is somewhat higher than that of swing check valves. Therefore, when selecting a pipeline check valve, it is crucial to choose one that suits the specific medium and installation location. Additionally, it is recommended to contact a professional for installation to ensure its effective use.

In conclusion：today we shared insights on the necessity of installing a toilet backflow valve and key points for its installation. If you want more information, please continue to follow our website, where we will provide more exciting content in the future.