Selection and precautions for the use of Chinese flange connected midline butterfly valves

Selection and precautions for the use of Chinese flange connected midline butterfly valves

1、 Introduction

As an important control equipment, Chinese flange connected midline butterfly valves have been widely used in the field of water treatment. The correct selection and use of this valve is of great significance for ensuring the normal operation of the system. This article will provide a detailed introduction to the selection and usage precautions of Chinese flange connected midline butterfly valves, to help readers better apply this type of valve.

2、 Selection of Middle Line Butterfly Valves with Flange Connection in China

Determine operating conditions: In the selection process, it is first necessary to clarify the operating conditions of the valve, including temperature, pressure, corrosiveness, flow rate, etc. Based on actual needs, select valve brands and models that meet the requirements.

Determine the operation mode: Select the appropriate operation mode according to actual needs, such as manual, electric, pneumatic, etc. At the same time, it is necessary to consider the size of the operating force to ensure that the valve can be easily opened and closed.

Determine the connection method: The connection method of the Chinese flange connection centerline butterfly valve should comply with relevant standards and specifications, such as GB/T 12238. Common connection methods include flange connection, clamp connection, etc. Suitable valves should be selected based on the actual connection method of the pipeline system.

Determine size and specifications: Determine the required valve size and specifications based on actual application needs. The choice of size mainly depends on the flow rate and pressure of the fluid. When selecting, it is necessary to ensure that the valve can meet the maximum flow and pressure requirements of the system.

Economic considerations: On the premise of meeting the usage requirements, the price and cost-effectiveness of the valve should be considered. Choosing valves with reasonable prices and excellent performance can reduce the cost of the entire project.

3、 Precautions for the use of Chinese flange connected midline butterfly valves

Pre installation inspection: Before installation, the valve should be inspected to ensure its appearance is intact, accessories are complete, and there is no obvious damage or deformation. At the same time, parameters such as valve model, specification, and material should be checked to ensure compliance with actual needs.

Correct installation: During the installation process, operations should be carried out according to the instructions or professional guidance. Ensure that the connection between the valve and the pipeline is tight and firm to avoid looseness or leakage. At the same time, attention should be paid to the inlet and outlet directions of the valve to ensure compliance with actual operating conditions.

Operating specifications: During the operation process, the operating procedures and specifications should be followed to avoid opening or closing the valve arbitrarily. At the same time, attention should be paid to observing the operating status of the valve. If there are any abnormalities, the machine should be stopped in a timely manner for inspection and troubleshooting.

Maintenance: Regular maintenance and upkeep of valves, including measures such as cleaning, lubrication, and tightening. Maintain the valve in good condition and extend its service life.

Safe operation: During operation and maintenance, safety precautions should be taken, such as wearing protective equipment and avoiding contact with high temperature or toxic media. In case of emergency, the machine should be immediately shut down and corresponding emergency measures should be taken.

4、 Conclusion

The correct selection and use of Chinese flange connected midline butterfly valves are crucial for ensuring the normal operation of water treatment systems. In the selection process, factors such as operating conditions, operating methods, connection methods, size specifications, and economy should be comprehensively considered; During use, attention should be paid to precautions such as pre installation inspection, correct installation, operating standards, maintenance, and safe operation. Through correct selection and use, the role of Chinese flange connected midline butterfly valves can be fully utilized, contributing to the sustainable development of the water treatment industry.