According to the process, determine the diameter of the regulating valve , the specific steps are: 1. First calculate the maximum flow rate Qmax and the minimum flow rate Qmin based on the equipment load of the production capacity. 2. The S value is selected according to the selected flow characteristics and system characteristics, and then the minimum differential pressure ΔPmin and the maximum differential pressure ΔPmax are determined according to the pressure distribution and the pipeline loss. 3. Calculate the Kvs at the maximum flow rate according to the flow capacity calculation formula. 4. According to the standard of Kvs in the selected product type, select greater than Kvs and close to Kv value. 5. Verify the opening of the regulating valve according to the selected Kv value and flow characteristics, and the required opening is between 10% and 90%. 6, calculate R, check the adjustable ratio. 7. After each verification is passed, the diameter of the regulating valve is determined according to the Kv value. Curcumin is a yellow pigment extracted from the rhizome of turmeric. Curcumin has long been used in food industry as a Natural Pigment. It is stable to reducing agents, has strong coloring power and does not fade easily, but is sensitive to light, heat and iron ions. Mainly used for dyeing canned, intestinal products and sauces. Curcumin also has important economic value and a wide range of pharmacological effects, such as hypolipidemic, anti-oxidation, anti-inflammation, anti-atherosclerosis and so on. Curcumin,Curcumin 95%,Turmeric Extract,Turmeric Curcumin,Curcumin Extract,Water Souble Turmeric extract Xi'an Gawen Biotechnology Co., Ltd , https://www.amulyn-bio.com