Double eccentric butterfly valve introduction, use, material, advantages and disadvantages, maintenance and maintenance.

Double eccentric butterfly valve introduction, use, material, advantages and disadvantages, maintenance and maintenance.

Double eccentric butterfly valve is a commonly used control valve, suitable for the regulation of a variety of non-corrosive or weakly corrosive fluids. The valve structure is unique, through the double eccentric structure, so that the valve is half open, the valve plate and the seal ring do not contact, through the fluid action, reduce the wear of the seal, extend the service life of the valve, in addition, because the valve plate axis deviates from the valve center, increase the bearing capacity of the valve plate, improve the safety performance.

The valve is mainly used in petrochemical, electric power, metallurgy, water treatment and other fields, can be used for flow regulation, interception and reverse flow. According to the actual work situation and the characteristics of the medium, different materials can be selected, such as carbon steel, stainless steel, alloy steel, copper and so on.

The advantage of double eccentric butterfly valve is that it has good control performance, quick opening and closing and sensitive adjustment response, good sealing performance, can withstand a certain pressure difference and fluid impact, simple structure, easy installation and maintenance. The disadvantage is that due to its structure, there are dead corners and local resistance inside the valve, which affects the flow efficiency of the fluid.

In order to extend the service life of the double eccentric butterfly valve, it is necessary to pay attention to the following maintenance:

1. Regularly lubricate and clean the valve, check the wear of the sealing ring and valve plate, and replace it in time if there is wear.

2. In the process of use, avoid the impact and vibration of the valve, avoid overheating welding work or other high temperature operations next to the valve, to prevent the valve from deformation or damage.

3. Prevent the accumulation of debris inside the valve and clean the pipeline in time.

4. Check and maintain the valve regularly, and deal with the problem in time to avoid affecting the normal use of the valve.

When you need to choose a double eccentric butterfly valve, you should choose a certified manufacturer, such as likv valve. The manufacturer has many years of manufacturing experience and technical strength, product quality has been certified by formal institutions, but also to provide high-quality after-sales service and technical support, can provide users with reliable products and services.