Clamp-type Single Pump Casing
The pump casing and front liner are locked by an integrated clamp, enabling quick disassembly, inspection and maintenance without separating the pump base. The pump outlet can be rotated 360° arbitrarily, adapting to narrow installation spaces on ships, construction sites and tunnels while reducing elbow pressure loss.
Extra-wide Flow Passage
The impeller is equipped with wide blades and a large-opening flow channel without dead zones that cause blockage. It can pass large-diameter pebbles and crushed stones, delivering far superior anti-clogging performance compared with conventional slurry pumps.
Wear-resistant Wet-end Components
The impeller, pump casing, front and back liners are standard-fitted with high-chromium wear-resistant alloy (Cr27) with hardness ≥58 HRC. Hard nickel alloy is optional for highly corrosive conditions, extending service life by 2 to 3 times.
Adjustable Impeller Clearance
The bearing bracket allows axial fine-tuning of the gap between the impeller and liners, restoring pump efficiency after component wear and prolonging the overall service cycle.
Bearings and Lubrication
Heavy-duty cartridge bearing assembly with high load capacity. Grease lubrication is standard; oil lubrication is optional for continuous high-temperature operation to ensure stable 24-hour non-stop running.
Multiple Shaft Seal Options
- Packing seal: Low-cost solution, widely used for sand extraction and dredging.
- Auxiliary impeller seal: No external clean water supply required, ideal for field sites without water sources.
- Combined packing & auxiliary impeller seal: Prevents leakage when transporting high-concentration slurry.
- Cartridge mechanical seal: Clean and zero-leakage, specially applied for shield construction and environmental mud treatment.
- V-belt drive: For small-caliber pumps and variable frequency speed control.
- Flexible coupling direct drive: For high-power fixed working conditions.
- Gear reducer / fluid coupling: For heavy-duty dredger operation.
- Variable frequency motor & thyristor speed control: Achieve precise adjustment of flow rate and head.
| Inlet & Outlet Diameter | 100 mm (4 inch) ~ 400 mm (16 inch) |
| Flow Rate Q | 108 ~ 4220 m³/h |
| Head H | Type G: 6 ~ 52 m; High-head Type GH: up to 90 m |
| Matching Power | 4 kW ~ 800 kW |
| Maximum Efficiency | 55% ~ 68% |
| Maximum Allowable Passable Particle | Pebbles and slag with particle size up to 1/3 of pump nominal diameter |
| Conveyable Medium Concentration | Weight concentration ≤ 60% |
- G: Short blades and wide flow passages, focusing on large flow and medium-low head.
- GH: Extended blades and enlarged impeller outer diameter, delivering 30%~80% higher head under the same rotating speed.
Applicable Pipeline Length
- G: Short-distance transportation (river sand extraction, short-distance slag discharge).
- GH: Long-distance pipelines, shield intermediate booster pumps, long-distance land reclamation, long blast furnace slag flushing pipelines.
Typical Application Scenarios
- G: Sand dredgers, river dredging, short-distance tailings discharge, pebble pumping.
- GH: Mud feeding & discharging pumps for metro shield machines, land reclamation, long-distance mine slurry transportation, long blast furnace slag flushing pipelines in metallurgy.
Dredgers, sand mining vessels, river & reservoir sand cleaning, sea sand extraction, land reclamation. Used to transport mixtures of pebbles, coarse sand and silt with large bulk stones.
2. Tunnel Shield Engineering (Main Model: Type GH)
Mud feeding and discharging pumps, intermediate booster pumps for shield machines. Convey high-concentration shield mud mixed with crushed stones and soil via long underground pipelines.
3. Mining & Metallurgy
Coarse particle tailings transportation, dense medium conveying for coal washing, blast furnace slag flushing, smelting slag transport, bauxite red mud conveying.
4. Environmental Protection & Infrastructure
River dredging, sludge treatment, sand washing conveying at aggregate plants, construction site mud pumping, solid waste coarse slag transfer.
- Excellent anti-cavitation performance: Suitable for shallow draft ships and low-liquid-level feeding underground, effectively avoiding cavitation damage.
- Flexible installation: 360° rotatable outlet fits ships, tunnels and factories.
- Easy maintenance: Quick-disconnect clamp structure allows replacement of wet-end parts without moving the motor base.
- Long service life with wear resistance: High-chromium alloy wet-end components withstand harsh sand and slag working conditions.
- Wide working condition adaptability: Multiple seal and transmission options cover all scenarios including land, ships and tunnels.
2. For pipelines over 500 meters long requiring pressure boosting, directly select high-head GH model.
3. Auxiliary impeller seal is recommended for field sand extraction without clean water supply and marine dredging.
4. Cartridge mechanical seal shall be adopted for shield construction and environmental projects with zero-leakage requirements.
5. For continuous 24-hour heavy-duty operation, select a motor with one higher power grade and adopt oil-lubricated bearing body.
