Gear pumps consist of four core components: 1. Gears (spur or helical). Spur gears are suitable for low-speed, low-pressure applications (resulting in higher noise levels), while helical gears are suitable for high-speed, high-pressure applications (reducing noise levels by over 50%). 2. Pump body and cover (cast iron/cast steel), providing structural support and integrated inlet and outlet piping connections, with a pressure tolerance of 10-20 MPa. 3. Drive shaft (high-strength alloy steel), with a torsional strength of ≥500 N·m, directly impacting the lifespan of the device (typically 30,000-50,000 hours). 4. Sealing system (mechanical shaft seal + static seal), with a leakage rate of <0.1 ml/min, meeting the explosion-proof requirements of the petrochemical industry. This structural design enables pumps to achieve volumetric efficiencies exceeding 95% in applications such as crude oil transportation and chemical media transfer.
