1. The pump is a 300BYXZXW1000-12-55 type vacuum-assisted self-priming centrifugal pump produced by Jiangsu Boyu Pump Industry; the inlet is 300mm and the outlet is 250mm.

2. The pump is equipped with a dry-run protection system for no-liquid condition, ensuring that the impeller does not cause damage to the mechanical seal, impeller, or pump chamber during high-speed rotation without liquid inside; (Certificate of intellectual property rights for the impeller base that can be rotated without load provided)