Toilets can be said to be essential in our lives, but many people do not know much about the toilet plumbing. Xiao Bian today to tell you about the size of the toilet pipe and when installing it need to pay attention to what?
What is the size of the toilet plumbing?
1, choose the appropriate toilet first to choose the appropriate size of the water pipe. The dimensions of toilet water pipes are generally 300mm, 350mm, 400mm, 450mm, etc.
2, the toilet water pipe specifications 75,90 is said that the nominal diameter dn, do not go to that corresponding point. Generally speaking, a few points corresponds to welded steel pipes, because when the welded steel pipe is processed, the thread processed on the pipe is an inch thread, and there is only a few points or several inches. The PVC-U pipe is sticky. Then, there is no such thing as a few inches or several inches.
3. The PVC-U pipe with an outer diameter of 90mm can be called a PVC pipe of 90. If the PVC-U pipe is connected to a cast iron drain pipe, the size corresponding to the drain pipe is DN75. In technical exchanges, it is not appropriate to call the PVC-U pipe with a nominal outer diameter of dn90mm as 75. It is more correct to say that it is wrong. On the matter, the drain pipe connected to the toilet should be dn110mm, using dn70mm, dn90mm is not appropriate. There is no hard standard for the standard. Now the bathroom generally uses a pipe with a PVC inner diameter of 110.
Second, the toilet plumbing installation precautions what?
1, pay attention to check whether there is a glazed return
Picking up the toilet must not be confused by the bells and whistles of toilets. The most important thing is to see the quality of the toilet. The glazed surface of the toilet shall be clean and smooth, with no obvious defects, no pinholes and lack of glaze. The trademark shall be clear, all kinds of accessories shall be complete, and the shape shall not be deformed. In order to save costs, many toilets do not have glazed surfaces in their return bends, while others use small elastic seals with poor sealing performance. Such toilets are prone to scaling and clogging, and are also prone to leaking water. Therefore, when purchasing, put your hands into the toilet's dirt and touch it to see if it is smooth.
In terms of flushing, toilets on the market today can be classified into siphons and open flushes (ie, straight flushes), but currently they are mainly siphonic. The siphonic toilet is flushed and has a siphoning effect, which quickly drains the dirt.
The diameter of the flush-type toilet sewer pipe is large, and the larger sewers are easy to flush. They have their own advantages and disadvantages.
2, the amount of accurate pit distance to facilitate the installation
In addition, the pit distance must be calibrated during installation. Pit distance refers to the distance from the center of the outlet to the wall behind the tank, the error can not exceed 1 cm, otherwise the toilet can not be installed. The pit distance of the drainage method refers to the distance from the center point of the ground water hole to the unrenovated wall surface. After the drainage method, the ground distance should be measured (refer to the distance from the center of the drainage hole to the finished floor). The toilet pits are generally two types, 300mm and 400mm, and are now available in the market at 350mm. If you want to know the specific distance, you can know the specific data by measuring the horizontal direction of the toilet from the side of the toilet to the center of the sewage pipe.
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