Bottle trap意思

"Bottle trap" is a term used in plumbing and refers to a specific type of trap, which is a device that is used to seal off a drain and prevent sewer gases from entering a building or space through the drain. Traps work by holding a small amount of water, which acts as a barrier to block the escape of foul-smelling or toxic gases from the sewer system.

A bottle trap is a type of trap that is shaped like a bottle or a U-shape, with a vertical pipe connected to a horizontal pipe. The horizontal portion of the pipe is lower than the vertical portion, which creates a water seal. This design is commonly used in sinks, bathtubs, and other fixtures where a P-trap or S-trap might not be suitable or practical.

Here's how a bottle trap works:

1. When water flows down the drain, it enters the bottle trap and then flows out through the horizontal pipe.
2. Some water remains in the bottom of the bottle trap, forming a seal that blocks sewer gases from rising up through the drain.
3. The shape of the bottle trap helps to maintain the water seal, even when there is no water flowing through the drain.

Bottle traps are often used in applications where space is limited or where a traditional P-trap or S-trap would be difficult to install. They are also sometimes used in decorative fixtures where the design of the trap is an important aesthetic consideration.