1. The screw use labyrinth sealing structure, which can reduce clearance leakage and improve volumetric efficiency.

2. High pressure balanced structure for smooth and reliable operation.

3. The pump body uses a special lining coating for better wear resistance and longer lifespan.

4. The pump body is made of high-strength structural steel, which has stronger pressure resistance.

5. Alloy nitriding steel screw with special case-hardening treatment to ensure the wear resistance. Multi stage sealing chamber structure for higher pump efficiency under high-pressure operating conditions.