The Purpose of a Floor Drain Water Seal Cup

When installing a floor drain, it is essential to ensure proper sealing. One type of floor drain is called a floor drain water trap. Its main function is as follows:

What is the function of a floor drain water trap?

The function of a water trap is to prevent odors from coming up the drainpipe. Its design resembles a connected structure, with a portion of water being retained inside. This water acts as a barrier, preventing the connection between the sewer and the air, thus stopping any unpleasant odors from entering the indoor space. This serves an anti-odor purpose.

What is an anti-odor floor drain?

1. There are many types of floor drains, one of which is called an anti-odor floor drain. Their principles of operation vary. For example, one type is water-sealed, meaning it requires a certain amount of water to be effective. This is similar to the function of a floor drain water trap, which needs water to function properly; otherwise, it will not provide the desired anti-odor effect, as it is designed with a pure water trap.

2. Another type is eccentric, which uses a sealing pad secured in place. Its principle is based on gravitational offset, ensuring a tight seal. It is also important to consider that during use, pins can become damaged. If they are damaged, the sealing effect is lost, so regular inspections and maintenance are necessary. Additionally, it is crucial to choose high-quality products.

3. There is also a spring-type floor drain, which can be of two kinds: upper spring and lower spring. It operates by being pressed down, and the spring resets afterward. They are generally made from boron steel, which is prone to corrosion, leading to a gradual loss of elasticity. The lifespan of this type is not particularly long, and if hair or other debris gets tangled in the spring, it can be difficult to clean, increasing the risk of blockage.

4. Lastly, there is a magnetic floor drain that utilizes two magnets to achieve a sealing effect. However, if other foreign objects adhere to the surface, the sealing performance may be compromised, and the magnetic force may gradually weaken.

In summary：different types of floor drains have varying water retention methods and principles of operation. When installing a floor drain, it is important to ensure the correct dimensions for the drain hole and to have a reasonable structure to facilitate cleaning.