Product Overview
SG / SGH gravel pumps are engineered for extreme abrasive conditions and large solid transport. The pump adopts a single casing structure with a wide flow passage, allowing solids and sand to pass smoothly without clogging.
It is suitable for dredging, sand extraction, and mining slurry transport under harsh working conditions.
Key Features
- Wide flow passage for large particle handling
- High wear resistant 27% chrome alloy wetted parts
- Excellent NPSH performance for difficult suction conditions
- Heavy duty structure for continuous operation
- 360° adjustable discharge direction
- Cartridge type bearing assembly for easy maintenance
- Multiple sealing options (mechanical / gland / expeller seal)
- Flexible drive options (V-belt / coupling / gearbox / hydraulic / VFD)
Applications
SG / SGH gravel pumps are widely used in:
- Sand and gravel transport
- River and port dredging
- Mining slurry and tailings
- Hydraulic mining
- Tunneling projects
- Slag and waste handling
- Large particle industrial slurry systems
Product Structure
The gravel pump consists of:
- Pump casing (high chrome alloy)
- Impeller
- Shaft and bearing assembly
- Expeller and sealing system
- Throat bush and liner
The cartridge-type bearing design ensures easy maintenance and reduced downtime.
Material of Main Parts
- Impeller: 27% high chrome alloy
- Volute / Bowl: 27% high chrome alloy
- Expeller: 27% high chrome alloy
- Shaft: high tensile steel
- Bearing housing: cast iron
- Shaft sleeve: wear resistant alloy
Performance Overview
- Flow range: 36 – 2800 m³/h
- Head range: 7 – 90 m
- Efficiency: up to 70%
- Max particle size: up to 230 mm
- Power range: up to 1200 kW
Selection Guide
SG / SGH gravel pump is recommended for:
- Large solid particle slurry
- High abrasion dredging conditions
- River sand extraction
- Low NPSH suction environments
FAQ
Q1: What is gravel pump used for?
It is used for transporting sand, gravel and large abrasive solids in mining and dredging applications.
Q2: What is the difference between slurry pump and gravel pump?
Gravel pump is designed for larger particles and higher abrasion conditions than standard slurry pumps.
Q3: Can gravel pump be used in dredging projects?
Yes, it is widely used in river and marine dredging systems.
