Electric butterfly valves are a type of electric valve and electric control valve. The main connection methods of electric butterfly valves are: flange type and wafer type; the main sealing forms o...
Preparation before operation
Before operating the valve, you should read the operating instructions carefully. Before operation, you must be clear about the flow direction of the gas, you should ...
Working Principle of Backflow Preventer
TWS backflow preventer is a mechanical device designed to prevent the reverse flow of contaminated water or other media into a potable water supply system or...
People usually think that the valve of stainless steel and will not rust. If it does, it may be a problem with the steel. This is a one-sided misconception about the lack of understanding of stainl...
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 ...
In the pipeline design of industrial and civil buildings, the selection of valves is directly related to the efficiency, safety and economy of the entire fluid delivery system. Faced with the dazzl...
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