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Working Principle
The heavy duty hose pump operates on a positive displacement mechanism. A reinforced, resilient elastomer hose is compressed sequentially along its length by rotating rollers or shoes mounted on a rotor. This mechanical action creates a continuous vacuum behind the compression point, drawing fluid into the hose, while the advancing roller pushes the fluid forward.
Crucially, the fluid remains entirely contained within the hose, ensuring zero contact with the pump casing or mechanical parts. This eliminates seals, valves, and glands, preventing internal leakage and contamination.
Core Technical Advantages
• Sealless & Valveless Design: Eliminates mechanical seals and packing glands, eradicating typical failure points for abrasive and corrosive fluids.
• Full Vacuum Priming: Capable of dry running indefinitely without damage and achieving a suction lift up to 9 meters.
• Shear-Sensitive Fluid Handling: Gentle, low-shear rolling action preserves the structural integrity of polymers, crystals, and delicate biological sludges.
• Reversible Operation: Full flow reversal capability allows easy line purging and clearing of blockages.
• Direct Fluid Containment: Maintenance is strictly limited to the hose element; fluid never touches metal components.
Typical Handled Media
• Mining tailings, mineral slurries, and heavy clay muds.
• Wastewater treatment sludge, polymer solutions, and lime slurries.
• Highly corrosive acids, sodium hypochlorite, and ferric chloride.
• Viscous chemicals, adhesives, ceramic slips, and food-grade pulps.
Target Industries
• Mining & Mineral Processing
• Municipal & Industrial Wastewater Treatment
• Chemical Processing & Petrochemicals
• Ceramic, Tile & Glass Manufacturing
• Construction & Tunneling (Bentonite & Grout Pumping)
Selecting the correct hose pump requires matching system pressure, flow rate, and chemical compatibility. Use the baseline specifications below for initial engineering evaluation.
|
Model Series |
Max Flow Rate (m³/h) |
Max Pressure (bar) |
Port Size (mm) |
Recommended Motor Power (kW) |
Primary Application Focus |
|
HP-25 |
0.8 - 2.5 |
10 |
DN25 |
0.75 - 1.5 |
Dosing, laboratory, low-flow chemicals |
|
HP-50 |
4.2 - 12.0 |
15 |
DN50 |
3.0 - 5.5 |
Wastewater sludge, ceramic slip |
|
HP-80 |
15.0 - 35.0 |
15 |
DN80 |
11.0 - 22.0 |
Mining slurry, heavy construction grout |
|
HP-100 |
32.0 - 70.0 |
16 |
DN100 |
30.0 - 45.0 |
High-capacity industrial transfer, tailings |
|
HP-125 |
60.0 - 110.0 |
16 |
DN125 |
55.0 - 75.0 |
Large-scale mining and municipal plants |
Durability in harsh industrial environments depends on precise material selection and manufacturing rigor.
Pump Casing: Heavy-gauge ductile iron or welded structural steel, annealed to eliminate internal stresses and coated with a high-durability epoxy finish for chemical resistance.
Rotor & Rollers: Precision-machined forged steel rollers mounted on heavy-duty, sealed taper roller bearings, ensuring uniform compression force and extended mechanical lifespan.
Hose Element Construction:
Multi-layer reinforcement utilizing high-tensile synthetic textile cords embedded in premium elastomeric matrices.
Outer layers precision-ground to tight dimensional tolerances to ensure consistent friction and heat dissipation without lubrication oil breakdown.
Available Hose Compounds:
• Natural Rubber (NR): Superior abrasion resistance for mineral slurries and unheated water-based suspensions.
• Nitrile (NBR / NBRF): Excellent resistance to oils, hydrocarbons, and fatty sludges; food-grade options available.
• EPDM: High resistance to oxidizing agents, dilute acids, bases, and elevated temperatures (up to 100°C).
• CSM (Hypalon): Exceptional resistance to concentrated acids, strong oxidizers, and aggressive chemical compounds.
Every hose pump undergoes rigorous factory testing to ensure reliable field performance under continuous duty cycles.
Machining Precision:
Casing mounting faces and rotor assemblies are machined on CNC boring mills to maintain alignment tolerances within ±0.02 mm, reducing vibration and bearing wear.
Hose Hydrostatic Testing:
Internal elastomer pressure testing is conducted on 100% of production batches to verify burst strength and dimensional uniformity.
Performance Testing:
Complete pump assemblies are run-tested on dedicated test benches to verify flow rate, discharge pressure, power consumption, and thermal stability before shipment.
Standards & Certification:
Manufactured in compliance with ISO 9001 quality management systems. ATEX-certified explosion-proof configurations are available for hazardous chemical plant zones.
Abrasive Wear Resistance: Centrifugal pump impellers and volutes wear out rapidly when handling high-concentration slurries, requiring frequent rebuilding. Hose pumps isolate the wear entirely to the replaceable hose.
No Stator/Rotor Galling: Unlike progressive cavity pumps, hose pumps do not rely on tight elastomer-to-metal fits that destroy themselves if run dry or starved of fluid.
Zero Mechanical Seal Flush: Eliminates the need for external flush water systems, reducing auxiliary utility costs and preventing product dilution.
We are one of the most professional heavy duty hose pump manufacturers and suppliers in China, featured by quality products and good price. With abundant experience, we warmly welcome you to buy customized heavy duty hose pump made in China here from our factory. If you have any enquiry about quotation, please feel free to email us.
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