The home shower with the thermostat core is not working. It's worth a lot of money. It was $128 in 2021. This time 68 bucks。
Look at the old one. It's a simple structure. The core is the hot spring core。
Ps: the comment section says this is a paraffin core
Shape memory alloys, sma, materials consisting of more than two metal elements that have a shape memory effect by thermal elasticity to the maraging body and its reverse
Let's start with a schematic of principle, the next one, where purple is a slider that can move around the right and the right and the right to the right and the right。
The green sma adjusts the right and right position of the pink valve to control the flow of cold and hot water。
This is the whole, and it can be seen that there are several seals in the outer circle, which are used to isolate cold and hot water and mixed water。
The two stainless steel filters are cold and hot water entering the water vents and coming from the bottom
Remove the filter
The valve shell is a two-part structure that can be spun, and the left is the side of the warm handle, which corresponds to the blue spring on the starting diagram
Take out the moving blocks, this little thing with the screws on it, the blue spring of the principle map
It's like this
Here's the other half. The big spring here is not the sma spring. This big spring is the normal spring
It's for the sliders. This is the hot sma spring in the copper column below, and you can see that the surface of the slide is covered with rust
After the metal parts were separated from the shell
The figure below is the moving slider, inside the copper pole is the sma spring, and the heat will bring out the stainless steel pin on the left
The final remains of the family
I'll see if i can get a video
The video shows the action of the heat-sensitive parts when they heat up with a lighter
Finally, an analysis of the cause of the failure shows that there are rusty traces on the inside of the valve. In particular, the rust on the cores used to control water mixing is obvious, and it should be rust that impedes the free slide of the slides and reduces the ability to regulate, which can be repaired by tearing it out at a later stage, but it is more expensive to pay for it。
