1. Clean the sealing surface of the butterfly valve and the dirt in the pipeline.
2. The inner port of the flange on the pipeline must be aligned and press the rubber sealing ring of the butterfly ...
The continuous development of the valve industry (1967-1978)
01 Industry development is affected
From 1967 to 1978, due to the great changes in the social environment, the development of the valve ...
Gate Valve: A gate valve is a valve that uses a gate (gate plate) to move vertically along the axis of the passage. It is primarily used in pipelines for isolating the medium, i.e., fully open or f...
① Use a file to remove the burr on the strained part of the valve stem; for the shallower part of the strain, use a flat shovel to process it to a depth of about 1mm, and then use an emery cloth or...
Valve selection principle
(1)Safety and reliability. Petrochemical, power station, metallurgy and other industries production requirements for continuous, stable, long-cycle operation. Therefore, t...
Body Structure:
The valve body of flange butterfly valves is usually made by casting or forging processes to ensure that the valve body has sufficient strength and rigidity to withstand the pressur...
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