I often hear that the exhaust valve has been changed. I want to know whether the valve is installed on the exhaust pipe or punched in the exhaust pipe. If you don't like it, you can change it back to the original factory.

Principle of action: when water enters the pipeline, the plug stops at the lower part of the positioning frame to exhaust a lot. When the air is exhausted, water enters the valve to float the ball, pushing the plug to close and stop the exhaust. When the pipeline runs normally, it will naturally produce a small amount of gas, which will gather in the upper part of the pipeline. To a certain extent, the water level in the valve will drop, and the floating ball will drop with the water. The gas will be discharged from the small hole. In the case of power failure or pump stop, negative pressure will appear at any time when the water in the pipeline is empty, and the floating ball will drop with the water. Opening a small hole drives a large number of air intake from the big hole to ensure the safety of the pipeline.

The exhaust valve is suitable for the exhaust of independent heating system, central heating system, heating boiler, central air conditioning, floor heating and solar energy heating system. Because a certain amount of air is dissolved in water, the solubility of air decreases with the increase of temperature, and gas gradually separates from water in the process of water circulation and gradually gathers together to form large bubbles and even gas columns. Due to the supplement of water, gas is often produced.

Precautions for installing extended data:

Although the original intention of the four-stroke engine is complete combustion, due to the large number of cylinders in the car, each cylinder has no independent exhaust pipe, and considering the noise, space, overall configuration and mass production cost, the exhaust pipe is only used to silence and cool the exhaust gas, so it will not be smooth enough, thus reducing the proper performance of the engine.

Therefore, it is more appropriate to restore horsepower and give full play to the original output than to modify the exhaust pipe to increase horsepower. The unobstructed exhaust pipe is also a well-known word "back pressure", which can also be called back pressure or back pressure;

In short, the internal resistance of the exhaust pipe is related to the design of the banana head, the diameter of the middle section, the total length of the catalyst, the bending angle and the size of the muffler, which is directly reflected in the exhaust efficiency.

The main purpose of refitting the exhaust pipe is to reduce the back pressure and make the intake and exhaust air flow smoother, which also belongs to extending the valve overlap time in disguised form to improve the vital capacity, so the engine characteristics can be changed, thus improving the response and power in the high speed range.

However, the back pressure does not mean that the lower the better, because the exhaust is too smooth, and the mixture glow is discharged before it is completely burned at medium and low speeds, and the torque is sacrificed. Even if the oil flows back, the pressure in the pipe will become lower, and there is a possibility that the exhaust gas will flow back to the combustion chamber, so a certain back pressure is needed. Is the diameter ratio 10- 15% appropriate? Generally speaking, the modification of exhaust pipe mostly starts from the middle section and the tail section.

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