Some small issues
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1. What do LSH and LIC mean? What is the full English name? 2. What is the full English name of HXV? H stands for hand, but I still haven’t found the English word for X; what does X represent? 3. What type of valve is it when a spring is installed on it? 4. Normally, stop valves have fluid flow from low to high, but some of the stop valves in our company have fluid flow from high to low. Could this have any impact? Please answer each of the above four questions separately. Thank you very much! ! !
1. LIC level indicates control – level indication for control purposes. 2. xv is a shut-off valve. 3. Those with springs are likely check valves or safety valves. 4. It has no impact; I’ve seen many systems where fluid flows from high to low. Globe valves are generally used in utility systems