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 water pumps, which protects the impeller from causing damage to the mechanical seal, impeller, and pump chamber when rotating at high speed without any liquid in the pump cavity; (A certificate of intellectual property rights for a non-rotating impeller base is provided as proof)