The three main roles of exhaust valves

1. When the pipeline begins to fill the water, the exhaust valve is required to discharge a large amount of air in the pipe, to ensure that the pipeline is filled with water when the pipeline is free of air, the exhaust valve is required to be able to a large number of and with the amount of water filled to match, can shorten the filling time.

2. In the pipeline operation stage, the exhaust valve is required to be able to micro-exhaust valve under the action of high pressure, the timely discharge of water released by the micro-air (about who volume of 2%), to prevent the gathering of air pockets caused by the pipeline into the obstruction of the water flow, and improve the efficiency of the water supply.

3. When the pipeline emptying stage, the exhaust valve is required to make up a large amount of air to prevent negative pressure in the pipeline, at this time the exhaust valve is required to suction volume and pipeline drainage to match, but also in the pipeline when there is a local accident, due to the slope of the short knife, the water flow of the drainage flow is very large, the exhaust valve is required to quickly make up a large amount of air to prevent the pipeline due to the action of the negative pressure caused by the pipe breaking.

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图片ALT信息： YUHUAN BAIMAN

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