Structural Features of the Gravel Pump

Feb 08, 2026 Leave a message

Horizontal Single-Stage Single-Suction Cantilever Design: Installed horizontally with a single-stage, single-suction structure, featuring a compact design, low center of gravity, and stable operation.

 

Pump Casing Clamp Connection: The pump body and pump cover are clamped together with a clamp, making assembly and disassembly convenient. The discharge direction can be installed at any 360° position, adapting to different site requirements.

 

Wide Flow Passage: The flow channel is designed to be wide, allowing passage of particles up to 254 mm in diameter, suitable for large particles that ordinary slurry pumps cannot handle.

 

High Hardness Wear-Resistant Materials: Flow parts (impeller, pump body, liner) are made of high-chrome alloy, hard nickel, or wear-resistant alloy steel, with hardness ≥58 HRC, significantly improving abrasion resistance.

 

Cylindrical Bearing Assembly: Bearings use a cylindrical structure, allowing easy adjustment of the clearance between the impeller and the pump body, and can be removed entirely for maintenance; typically lubricated with grease, some models support oil lubrication.

 

Multiple Shaft Seal Types: Can be selected according to operating conditions:
Packing Seal: Suitable for suction lift or backflow conditions;


Auxiliary Impeller Seal: Suitable for backflow conditions (backflow head ≤ 10% of total head);


Mechanical Seal: Provides good sealing but is more costly.

 

Various Drive Methods: Includes V-belt drive, flexible coupling, gear reducer, hydraulic coupling, variable frequency drive, or thyristor speed control, facilitating matching with the optimal operating conditions.