Is it necessary to install a handle butterfly valve outside the fire box?

Some require a butterfly valve to control a fire box, and some require a butterfly valve to be added to the ring pipe, generally 4-5 fire boxes are controlled between two butterfly valves, which is convenient for maintenance. Look at the fire hydrant system diagram specifically.

For clamp and groove type and signal butterfly valve, the operating handle can be rotated to open and close, when the signal butterfly valve is installed, the terminal is downward to prevent short circuit caused by water, and the three-strand line grounding and alarm line are used to protect leakage and monitor the opening or closing state of the valve, which is generally used with the alarm valve or water flow indicator, and the distance between the water flow indication is not less than 300mm, and there are no special requirements for others.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Hello, it's a pleasure to answer for you! Can be mounted sideways. 1. Theoretically, the butterfly valve can be installed in any direction, and it is recommended that the valve shaft be placed horizontally, so that the bearings at both ends will not be at the bottom (below), so as to avoid the sediment in the medium from entering the bearing.

2. When there is a bend and a T-shaped pipe on the inlet side of the butterfly valve that causes the fluid to bend and distribute unevenly into the valve Qiaoxun oak, the bias flow will occur in the pipe, so the resulting bias flow must be evenly configured on both sides of the butterfly plate, so as to avoid uneven force on both sides of the butterfly plate, and may produce additional moments, 3. If it is on the pipeline, in order not to bear the force and bending moment from the applied shaft direction, it is best to set up expansion joints on the outlet side of the valve. When the valve is opened and closed, the water pressure of the valve should not be borne by the feet, but through the flange of the valve, and it is better to bear it by the pipeline. 4. The general structural length of the butterfly valve is relatively short, and its butterfly plate will extend into the adjacent pipeline or other components, so it is necessary to pay attention not to collide and interfere with other parts.

Furthermore, it is necessary to prevent the error of the inner diameter of the matching pipe from colliding with the butterfly plate if it is greater than C.