The fire pump testing accessories adopt a high-strength casting structure and optimized flow channel design, which has the advantages of high-precision flow detection, stable pressure testing, high pressure resistance, corrosion resistance, standard flange connection and convenient installation. They are widely used in fire pump performance testing, system commissioning, fire protection engineering acceptance and daily maintenance. They can be matched with electric fire pumps, diesel fire pumps and various fire water supply systems, providing an efficient and reliable solution for the performance verification of fire water supply systems.