VALVE

  Simultaneous construction with hydropower is more labor-saving When is the best time to install central air conditioning in the decoration site? The best is to construct central air conditioning and water and electricity at the same time. The purpose of this is to make it easier for the workers to coordinate. In addition, the power cord of the central air conditioner should be arranged by the decorating company. Generally, the opening on the beam is made by the designated personnel of the new house property. It's thankless to install the light strip Unless  floor heating  is installed in the home, it is best not to install light strips in the air outlet of the central air conditioner, because this will affect the heating effect of the central air conditioner, and the cost is high, so that the original 45° downward air outlet has to be changed to 90°. The hot air will only circulate on a parallel surface and it is difficult to blow down. Installing the top corner line may affect t

  Among all types of valves, there is a particular one with the most beautiful name—the   butterfly valve . How did the name come from? In answering this question, we could use analogy. For example, the ball valve looks like a ball, so can we guess that the butterfly valve looks like a butterfly? Well, it seems a little funny, but I have to say: “Bingo, right answer!” The butterfly valve is a regulating valve with simple structure, and it can be used for switching control of a low pressure pipeline medium. The opening and closing member (valve or disc) of the butterfly valve is a disc that rotates around the valve shaft to open and close. In the cylindrical passage of the butterfly valve body, the disc rotates about the axis to achieve flow control. The valve is fully open when the disc reaches 90°, and changing the angle of the disc can adjust the flow of the medium. When the butterfly valve is fully open, it has a small flow resistance; when it is between about 15° and 70°, it can pe