Reliable G/GH sand and gravel dredging pumps from our leading China factory. As professional suppliers, we provide high-head GH pumps featuring Ni-hard alloys for abrasive slurry in mining and dredging operations.
The G/GH series Sand and Gravel Dredging Pumps are industrial-grade centrifugal solutions meticulously engineered for the most rigorous slurry transport environments. Featuring a robust horizontal single-pump casing, these machines are specifically optimized to handle high-concentration gravel and highly abrasive materials with unmatched efficiency. While the G series provides versatile general-purpose pumping, the GH variant is engineered for high-head applications, ensuring the seamless transport of heavy solids across challenging terrains and significant depths.
To maximize operational longevity and minimize downtime, the wet-end components are forged from premium Ni-hard and high-chromium abrasion-resistant alloys. With an innovative 360° discharge orientation and a wide wet-passage design, the G/GH series delivers superior Net Positive Suction Head (NPSH) performance. This makes them the definitive choice for large-scale dredging projects, mining operations, and complex industrial slurry management where wear resistance and hydraulic stability are critical.
| Model Range | 6/4D-G to 18/16T-G | Max Power (kW) | 60kW – 1200kW |
|---|---|---|---|
| Capacity (m3/h) | 36 – 3600 m3/h | Head (m) | 5 – 64 m |
| Rotational Speed | 600 – 1400 r/min | Max Efficiency | 58% – 72% |
| NPSH (m) | 1.5 – 4.5 m | Vane Diameter | 378mm – 1067mm |
| Material Type | High Chrome / Ni-hard | Seal Options | Packing, Expeller, Mechanical |
Utilizing advanced high-chromium and Ni-hard alloys to aggressively combat the most abrasive gravel and sand particles.
Robust construction combined with wide wet-passages minimizes internal turbulence and prevents premature material erosion.
The 360° adjustable discharge direction allows for seamless integration into any plant layout or confined site.
Excellent NPSH performance significantly reduces cavitation risks and maintains steady, high-volume flow rates.
Choice of mechanical, expeller, or packing seals to perfectly match the specific chemical and physical properties of your fluid.
Clamp band connections enable rapid disassembly, allowing for swift inspection and efficient part replacement.
Customizable alloy options including Natural Rubber, Polyurethane, and Stainless Steel to match specific slurry chemistry.
Precision-engineered expeller and mechanical seals designed for zero-leakage operation in harsh environments.
Advanced hydraulic design optimizes the ratio between capacity (Q) and head (H) for maximum efficiency.
Standardized part dimensions enable predictable wear cycles and simplified maintenance scheduling.
Maintaining a full inventory of impellers and liners to ensure minimized downtime for your operations.
Fully compatible with various slurry pipeline diameters and diverse dredging equipment configurations.
| Performance Metric | Standard Slurry Pump | G/GH Series Pump |
|---|---|---|
| Maintenance Cycle | Short (Frequent Liner Change) | Extended (High Chrome Alloy) |
| Operational Downtime | High due to wear | Low due to rapid-change design |
| Energy Efficiency | Standard η% | Optimized Hydraulic Efficiency |
| Material Handling | Limited particle size | High capacity for large gravel |
| Total Cost of Ownership | Higher over 5 years | Significantly Lower (Long Life) |
The G series is designed for general sand and gravel pumping, while the GH series is specifically engineered for high-head applications, allowing slurry to be transported over longer distances or higher elevations.
For highly corrosive environments, we recommend Stainless Steel or Natural Rubber linings. For purely abrasive gravel, High Chrome alloys are the industry standard for durability.
It allows the pump to be installed in confined spaces and enables the discharge pipe to be routed in any direction without additional elbows, reducing friction loss and wear.
Expeller seals are often preferred for low maintenance as they eliminate the need for packing adjustment and significantly reduce the risk of shaft wear.
Yes, the G/GH series features a wide wet-passage design specifically engineered to prevent clogging when transporting coarse sand, gravel, and other large solids.
These pumps offer excellent NPSH performance, which significantly reduces the risk of cavitation, ensuring stable flow and protecting the impeller from premature damage.
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