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How to maintain sanitary butterfly valves?
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How to maintain sanitary butterfly valves?

Views: 0     Author: Site Editor     Publish Time: 2020-08-18      Origin: Site

Sanitary butterfly valve is widely used in various fields, its main function is flow regulation. Due to the large pressure loss of sanitary butterfly valve in the pipeline, the firmness of butterfly plate bearing pipeline medium pressure should be considered when closing. In addition, the working temperature limit of resilient seat material at high temperature must be considered. The structure length and overall height of sanitary butterfly valve is small, the opening and closing speed is fast, and it has good fluid control characteristics, so the structure principle of sanitary butterfly valve is most suitable for making large diameter valve. It is necessary to know what kinds of failure the sanitary butterfly valve will have and how to deal with it.


  • Common malfunction in the process of using the sanitary butterfly valves 

  • How to maintain sanitary butterfly valves?

  • What should we pay attention to when installing sanitary butterfly valves?

  • Protection measures of the sanitary flap valves


Common malfunction in the process of using the sanitary butterfly valves

Stainless Steel Sanitary Male Threading Nut Butterfly Valves

During continuous use, the rubber elastomer in the sanitary butterfly valve will tear, wear, age, pierce or even fall off. The traditional thermal vulcanization process is difficult to meet the needs of on-site maintenance of the sanitary flap valves. Using special equipment for maintenance will consume a lot of heat and electricity, which is both time-consuming and laborious. At present, the method of polymer composite materials is gradually adopted to replace the traditional method. This allows the sanitary flap valves to have excellent adhesion and excellent wear and tear resistance, to ensure that the maintenance cycle reaches or even exceeds the life cycle of new parts, thereby greatly reducing downtime.


How to maintain sanitary butterfly valves?

1. When the hydraulic driving equipment of sanitary butterfly valve has problems, the repair personnel should be found and repaired in time

2. When replacing the parts in the equipment, the oil in the accumulator should be delivered first to avoid the occurrence of trouble.

3. When replacing electrical parts of sanitary butterfly valve, the power supply should be closed in time to avoid electric shock.

4. When repairing sanitary butterfly valve, check whether the strength and hardness of the screw meet the requirements of the manufacturer's rules.


What should we pay attention to when installing sanitary butterfly valves?

1. When installing sanitary butterfly valve, the valve disc should stop at the closed position.

2. The opening position shall be determined according to the rotation angle of butterfly plate of the sanitary flap valves.

3. For sanitary butterfly valve with bypass valve, the bypass valve should be opened before opening.

4. The installation shall be carried out according to the manufacturer's installation instructions for the sanitary flap valves, and the heavy butterfly valve shall be provided with a firm foundation.

5. The installation position, height, inlet and outlet direction must meet the design requirements, and the connection should be firm and tight.


Protection measures of the sanitary flap valves

1. After the hydraulic equipment of sanitary butterfly valve is completed, add a certain amount of oil to the equipment according to the manual. The new oil can only be added to the oil tank after filtration.

2. Sanitary butterfly valve initial operation, to recognize the motor rolling direction is accurate.


After reading this article, I believe that you will have a better understanding about the maintenance of sanitary butterfly valves.



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