composite exhaust valve is mainly used in water pipe? These are all we have to consider, then composite exhaust valve in the application of the water pipe? The following and see it together.

composite exhaust valve should have good performance, especially when the pipe gas slug flow, air flow, not only can quickly get rid of the first balloon, and can continue to discharge any airbags. That under the condition of a certain pressure, composite exhaust valve must be body full of air vent exhaust opening size, water into the valve body, valve will shut down without drainage. Composite exhaust valve to meet the requirements, the large vent diameter shall not be less than the 70% ~ 80% of nominal diameter, any small outlet diameter. Bidding manufacturers must show exhaust valve by itself or inspection agencies inspection certificate.

composite exhaust valve diameter usually give priority to 1/8 ~ 1/5 the diameter of the pipe. If choose not to bring a delay when the exhaust Industrial Valves closed, had better be in a place to install a large and a small two exhaust valve. If you choose with slow the exhaust valve closed, only one can be at the top of the tube. If the pipe flat, slope & le; When D / 1000, should every 0. 5 ~ 1. 0 km to install a compound exhaust valve. If the slope & le; Should every 1 D / 100. 0 to 1. 5 km to install a vent valve. When slope is again big, can consider every 1. 5 to 3. 0 km to install a vent valve. Slope & ge; D / 10, can consider to install exhaust valve (only in the high point of D for pipe diameter) 。 Many ups and downs of piping, composite exhaust valve should be installed at the high place. In accordance with relevant regulations and technical requirements, scientifically choose composite exhaust valve, determination of the choose and buy is compound exhaust valve performance test, composite exhaust valve performance appraisal, qualified rear can use.

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