Frequently asked questions of shower mixing valve How to replace the valve core of shower mixing valve?

The water mixing valve is widely used in daily life, which can well mix hot water and cold water in life and facilitate people's domestic water use. Because the shower mixing valve is used very frequently in our daily life, it is also very common that it has problems. Under normal circumstances, there will be no water or only cold water. How to fix it? Here is a brief introduction to the shower mixing valve.

Frequently asked questions of shower mixing valve

1. When installing the mixing valve, the decorative cover is not in place.

When the construction master installs the mixing valve of shower products at home, he often uses the angle of 6 to 4 to adjust the hole spacing because he is worried that the hole spacing of the embedded PPR elbow does not match the hole spacing of the mixing valve, which will affect the installation and use of customers. The consequence of this is that many pairs of silk are exposed outside the wall, and the decorative cover is not in place, which affects the appearance.

2. Screw the water mixing valve to the hot water side, so that no drop of water will come out.

The porcelain core of the mixing valve should be blocked. If you look closely at the handle of the mixing valve, there is usually a small spot with blue and red marks. Dig it out with a small screwdriver, and there will usually be a hole to be illuminated with a flashlight. There is a very, very small screw, usually small print or small hexagon. Look at the screws and find the right tool. Then, loosen it a little and pull out the handle. If there is no response, pull it out and look at the porcelain.

How to change the spool of shower mixing valve

1. Remove the handle. Unscrew the top screw on the handle (in the small hole at the bottom of the handle, use a cross screwdriver), and then pull the handle outward hard to separate it from the rocker arm of the valve core. It should be noted that the handle is generally made of cast copper, the metal structure is "loose" and the corrosion resistance is poor, while the square hole "sleeve" in the handle is more likely to be damaged. Therefore, when disassembling, we should pay special attention not to exert too much impact on the handle (for example, when snapping it back and forth), otherwise it is easy to cause the square mouth of the handle to crack (for example, you can pat it to help when pulling it out).

2. Remove the valve core compression nut. Note that the nut is a thin-walled ring part, which is easy to be damaged and deformed during disassembly (for example, you can tap it lightly when it cannot be disassembled, and then screw it loose).

3. After removing the compression nut, the valve core can be taken out. However, before putting in a new valve core, the inner bottom surface of the valve core installation cavity must be carefully inspected and pretreated. Inspection and pretreatment requirements for the three assembly holes on the bottom of the valve body cavity: As the plane of the three holes on the bottom of the valve core has been obviously rough after long-term use, measures should be taken to improve the smoothness. It is recommended to carefully check the smoothness and dirt of the sealing surface with a magnifying glass, and then clean and polish it. The method is to use fine abrasive cloth to rotate and polish along the plane of the orifice, and then clean it after it is satisfied.

4. Install the new valve core into the inner cavity of the valve body, align it with the two locating holes at the bottom (note that there are two protruding locating pins at the bottom of the valve core), screw on the compression nut after confirmation, and install the handle. When installing the handle, there may be a phenomenon that the rocker with square cross section of the valve core sticks to the square hole of the handle (the handle cannot be inserted). The plastic rocker can be scraped with the sharp edge of broken glass or broken saw blade to correct the fit size.

After briefly introducing the above contents, everyone should have a more detailed understanding of the shower mixing valve. When using the shower mixing valve in daily life, stop the water in time if there is any problem, find the problem in time, and replace the mixing valve in time if there is any problem after finding the problem. After the water mixing valve is repaired, pay attention to the tightness of the connection and avoid water leakage, so as not to affect the normal use of people. I hope the above content will be helpful to everyone.