1 Pneumatic ball valve structure Pneumatic ball valve is evolved from plug valve. Its opening and closing parts, as a ball, use the ball to rotate 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing.

Market situation of pneumatic butterfly valve connector
The rising trend of stainless steel market is further accelerated
The stainless steel pneumatic butterfly valve connector points out that the domestic steel price has maintained a record of 15 weeks' rise so far, and the rise in the steel market around the country has further accelerated in the past two weeks. Although the market heat is increasing from time to time, the price is still good to wait, but in the short term, the price of stainless steel pneumatic butterfly valve rises too fast, and the callback risk is gradually accumulating. After the first monthly profit of large and medium-sized steel enterprises in May, it was understood yesterday that 71 large and medium-sized steel enterprises made a profit of 3.545 billion yuan again in June, and the overall profit in the first half of the year was 1.725 billion yuan. This means that the profits of steel enterprises are improving, but it is worth noting that the profits mainly come from investment income, and the main business of steel enterprises is still in deficit. "But the market risk also increases with the price rising, and the relevant driving force, such as the price policy of steel mills, will gradually weaken." Hu Yanping said that the constant increase in supply, coupled with the social inventory significantly higher than the same period last year, the test of the traditional peak demand season, and the weak or old external demand, make the medium-term adjustment of the steel market more likely. After more than three consecutive weeks of strong gains, the high adjustment stopped on Thursday. On the whole, the overall trend of the steel market is still strong, but the rapid rise in the early stage has led to the accumulation of the current price callback risk, and the adjustment trend is gradually brewing and is in a sharp amplification trend. In June, the national crude steel output reached 49.4247 million tons, an increase of 5.99% over the same period last year. In the first half of the year, the cumulative consumption of crude steel was 266.5829 million tons, an increase of 1.23% over the same period last year. In the first half of the year, the apparent consumption of crude steel increased by 10.12% year on year, which indicates that the domestic market has changed from an obvious shrinking demand for stainless steel pneumatic butterfly valves to a moderate growth. Up to now, the domestic steel price has maintained a record of 15 weeks' rise, and the rise in steel markets around the country has further accelerated in the past two weeks.
Although the market heat is increasing from time to time, the price is still good to wait, but in the short term, the price of stainless steel pneumatic butterfly valve rises too fast, and the callback risk is gradually accumulating. After the first monthly profit of large and medium-sized steel enterprises in May, it was understood yesterday that 71 large and medium-sized steel enterprises made a profit of 3.545 billion yuan again in June, and the overall profit in the first half of the year was 1.725 billion yuan. This means that the profits of steel enterprises are improving, but it is worth noting that the profits mainly come from investment income, and the main business of steel enterprises is still in deficit. "But the market risk also increases with the price rising, and the relevant driving force, such as the price policy of steel mills, will gradually weaken." Hu Yanping said that the constant increase in supply, coupled with the social inventory significantly higher than the same period last year, the test of the traditional peak demand season, and the weak or old external demand, make the medium-term adjustment of the steel market more likely. The price of stainless steel pneumatic butterfly valve connector is likely to fall. How to correctly use pneumatic butterfly valve
Although the pneumatic butterfly valve can be tightened or stretched, if it is not installed in the correct position, it will break quickly, reducing the service life.
Generally, pneumatic butterfly valves can be divided into three lengths: the first is the tightening length, that is, the length when the hose is tightened to the limit position; The second is the length of the device, which is the length of the hose when it is in the middle of half of the maximum displacement; The third is the stretching length, the length when the pneumatic butterfly valve is stretched to the maximum limit.
When installing the hose, the hose should be in the middle position, which is called the length of the device. Under the device state at this position, when the hose is subjected to axial load, it can move in two directions. Otherwise, if it can only move in one direction, it will affect the strength of the pneumatic butterfly valve and reduce its service life.
In the process of implementing the device, considering that using a ruler to measure the hose length according to the calculation results and then stopping the device may affect the consumption efficiency, some foreign consumers directly install the ruler on the pneumatic butterfly valve, and cut off the ruler after the installation.
The hose can be installed horizontally, vertically or diagonally. The most ideal state is to install vertically. At the same time, the device should be prevented from being near the left side of the wheel. If necessary, a baffle can be installed.