Performance Comparison between Internal Gear Pump and External Gear Pump

First, the external gear pump outlet pressure (MPa) <4. Flow (m³ / h) <7. Features: more moving parts, high maintenance costs. Price: Low. Second, the internal gear pump outlet pressure (MPa): non-lubricating medium <0.7, lubricating medium <1.7. Flow (m³ / h) <341. Features: less moving parts, low maintenance costs. Price: relatively high.