Erosion and corrosion of the calcium carbide slurry pressure control valve
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Does anyone have any experience regarding the use of pressure control valves for calcium carbide slurry? The pressure control valve used in our company failed due to erosion of its valve body after less than two months of use； For the first use of a butterfly valve, it lasted less than 40 days; for the second time, an eccentric rotary valve was chosen, and it lasted less than 35 days – in both cases severe corrosion occurred on the valve body ； The valve bodies of both types of valves have been hardened ； Medium: calcium carbide slurry, alkaline in nature, containing ferroselenium particles; strict requirements are not imposed on valve leakage, and leakage is permitted ； Pressure: around 1.0 Mpa ；
This post was last edited by Valve Mingming on 2016-3-31 at 22:40. Ceramic valves can be used; they are resistant to erosion and corrosion. For opening and closing as well as discharging fluid, ceramic knife gate valves can be chosen. http://pan.baidu.com/s/1ntHupzN