Calculation of self-priming buckets
Thread Content
Our company needs to create a self-priming tank for a self-priming pump. The diameter of the pump’s inlet pipe is DN400, the length is approximately 5 meters, and there is also a 90-degree elbow. I wonder what size the self-priming tank should be. Is there any formula for calculating this?
Here’s a small formula based on my own experience from the field, combined with design standards: for small pumps, it’s 8 times the pipe area multiplied by L (pipe length); for large pumps, it’s 5 times the pipe area multiplied by L (pipe length). However, your pump has a high flow rate, and for safety reasons, it is highly not recommended to use water filling as a starting method. Instead, it’s better to use auxiliary water-introduction equipment. You can refer to the information in plumbing and drainage design manuals for this. I think this constitutes the final answer. This post was last edited by playwater365 on 2008-1-25 at 21:29
Thank you for the suggestion from above; the pump’s flow rate is 245 cubic meters. I’ll check the water supply and drainage manual first.