Guidelines for purchasing and installing Chinese flange connected midline butterfly valves

Guidelines for purchasing and installing Chinese flange connected midline butterfly valves

In industrial pipeline systems, Chinese flange connected midline butterfly valves, as a common regulating valve, have the advantages of large flow capacity, high regulation accuracy, and simple structure. This article will introduce how to purchase and install Chinese flange connected center line butterfly valves to ensure their good performance in pipeline systems.

1、 Precautions for purchasing Chinese flange connected midline butterfly valves

1. Determine valve specifications and materials

Before purchasing a Chinese flange connected midline butterfly valve, it is necessary to first understand the pipeline size, working pressure, working temperature and other parameters in order to determine the specific specifications of the valve. In addition, suitable materials such as stainless steel, carbon steel, etc. need to be selected based on the characteristics of the medium.

2. Consider valve type

There are various types of butterfly valves with flange connection in China, such as manual butterfly valves, pneumatic butterfly valves, electric butterfly valves, etc. Select the appropriate valve type based on actual needs and control methods.

3. Check the quality of the valve

When purchasing, attention should be paid to the quality of the valve, and the machining accuracy, material quality, and valve sealing performance of the valve components should be checked. We can refer to factors such as brand reputation and user evaluation to ensure the purchase of high-quality and reliable valves.

4. Consider after-sales service

When purchasing Chinese flange connected midline butterfly valves, it is important to pay attention to the supplier’s after-sales service. Valves may malfunction during use. Choosing products from reputable manufacturers can ensure timely repair and replacement in the event of a malfunction.

2、 Installation precautions for Chinese flange connected midline butterfly valves

Before installing the valve, the debris inside the pipeline should be cleaned to ensure that the valve installation site is clean and flat.

2. Determine the installation position of the valve based on the design drawings and actual dimensions, ensuring that the valve centerline coincides with the pipeline centerline.

3. For the connection between the valve and flange, appropriate bolt specifications should be selected according to the design requirements. When tightening, attention should be paid to symmetrical and uniform force to avoid valve deformation.

4. Install valve drive devices, such as manual wheel handles, pneumatic actuators, electric actuators, etc. During the installation process, pay attention to the firm and reliable connection between the valve driving device and the valve.

After installation, conduct a valve opening and closing test to check if the valve operates smoothly and has no abnormal sound. At the same time, check the sealing performance of the valve to ensure that it is tightly closed.

Before putting the valve into use, a comprehensive inspection should be conducted to ensure that the valve and driving device are working properly.

Summary: When purchasing Chinese flange connected midline butterfly valves, attention should be paid to the specifications, materials, quality, and after-sales service of the valves. During the installation process, pay attention to the positioning, firm connection, and sealing performance of the valve. Through strict procurement and installation processes, ensure that the Chinese flange connected centerline butterfly valve performs well in pipeline systems.