Introduction
The HNA75(D) dual-hose sludge peristaltic hose pump is custom-built for conveying thick sludge, dewatered sludge, sewage sludge and high-viscosity sludge mixed with fibrous impurities in municipal sewage treatment, environmental protection engineering and industrial wastewater treatment industries. Featuring a seal-free and valve-free design, it delivers strong self-priming capability with a vacuum degree of up to 97%, allows long-term dry running without mechanical damage, and supports a maximum working pressure of 1.2 MPa. Only the wear-resistant and tear-resistant special rubber hose contacts the medium, effectively avoiding medium leakage and secondary pollution. The unique dual-hose parallel conveying design boosts overall flow capacity, while the low-shear and anti-winding structure prevents fiber impurities from sticking and blocking. It supports forward and reverse operation to conveniently clear pipeline blockages and backwash residual sludge, and maintains stable and precise metering performance. With a rated flow of 32m³/h and a matched power of 15kW, the dual-hose sludge peristaltic pump features stable operation, integrated compact structure and convenient daily maintenance. Multiple hose grades are optional to adapt to corrosive sewage, high-fiber and high-solid-content sludge working conditions, making it a premium dedicated conveying pump for municipal and industrial sludge treatment projects.
Performance Curve
Working Principle
A specially formulated rubber hose with a smooth inner wall and reliable strength is installed inside the pump body. A pair of pressure rollers rotate and squeeze along the hose. This rotational squeezing pushes the medium forward in one direction without backflow.
After conveying the medium, the hose rebounds to its original shape by its own elasticity, creating a high vacuum inside the hose to draw new medium into the lumen. The incoming medium is then discharged by the subsequent squeezing of the pressure rollers. This cycle repeats continuously, enabling constant suction and discharge of the medium.
01 The transmission device drives the rotor to rotate. Two pressure rollers mounted on the rotor and arranged at 180° to each other squeeze the hose. When the first pressure roller compresses the hose, a high vacuum is formed inside the hose, drawing the pumped medium into the hose cavity. The hose quickly returns to its original shape under its own elastic force.
02 The pumped medium has entered the hose. The second roller compresses the hose and propels the medium forward all the way to the discharge outlet.
03 At the outlet of the hose pump, one pressure roller is about to disengage from the hose, while the other roller mounted on the rotor and arranged at 180° has started squeezing the hose. This design prevents internal fluid leakage. The cycle repeats continuously, enabling uninterrupted suction and discharge of the medium.
Key Advantages
1. Adopting dual-hose design, HNA75(D) delivers larger flow rate and works efficiently for large-scale sludge transportation.
2. Only the hoses of HNA75(D) contact materials, so metal parts stay free from wear. The dedicated hoses resist erosion from particle impurities in sludge for long service life.
3. Without mechanical seals and valves, HNA75(D) realizes fully sealed delivery, preventing leakage, odor and on-site pollution effectively.
4. HNA75(D) supports forward/reverse rotation and dry running to clear blockages easily. The hose is the only wearing part for quick replacement, and it suits sludge with different concentrations and viscosities.
Typical Applications
● Municipal Environmental Protection
HNA75(D) is widely used in municipal sewage treatment, river dredging and septic tank sludge transfer for high-solid and high-viscosity sludge.
● Mining & Metallurgy
HNA75(D) reliably transports abrasive media such as mine tailings and metallurgical waste slurry for industrial waste and sludge handling.
● Chemical Industry
Equipped with special hoses, HNA75(D) safely conveys corrosive sludge and process slurry with excellent leakage and corrosion resistance.
● Light Industry & Manufacturing
HNA75(D) handles process sludge and waste residue from papermaking, coating and food factories, fitting diverse industrial sludge delivery conditions.
Dimension(mm)
Core Component - Hose
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NR |
NR hoses are suitable for conveying highly abrasive media, such as clay sludge, lime milk and non-organic products. Temperature range: -20°C to +80°C. |
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EPDM |
EPDM hoses are applicable to corrosive chemical liquids such as acids and solvents. Made of natural rubber with an internal EPDM lining layer, they withstand temperatures from -20°C to +100°C. |
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CSM |
CSM features excellent resistance to strongly oxidizing substances, as well as concentrated acids and alkalis. It is suitable for media such as hydrogen peroxide (up to 60% concentration), cationic flocculants (polymers), and high-concentration sulfuric acid. Temperature range: -20°C to +85°C. |
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CR |
CR boasts good resistance to oil, heat, ozone, acids, alkalis and chemical reagents. Temperature range: -20°C to +80°C. |
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FKM |
FKM delivers superior chemical resistance against strong acids, strong alkalis and a wide range of chemicals, with good oil resistance. It is ideal for oil-contacted and high-temperature working environments. Temperature range: -20°C to +120°C. |
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NBR |
NBR is suitable for oil resistance (non-mineral oil), grease, alkalis and detergents. Typical media include sludge containing hydrocarbon fractions and polyaluminum chloride. Applicable temperature range: -20°C to +80°C. |
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F-NBR |
F-NBR has a food-grade smooth inner surface, suitable for direct food contact and various food processing applications including dairy products. It is applicable to fruits and fruit concentrates, yogurt, dairy products, yeast, sugar and food additives, and resists various cleaning chemicals. Temperature range: -20°C to +80°C. |
The hose is made of high-quality composite rubber with 2 to 6 plies of textile reinforcement. The outer layer is manufactured to strict tolerances to ensure reliable hose performance.
The service life of Hono hose pump dedicated hoses is approximately 30% longer than that of other hoses available on the market.
FAQ
Q: Is HNA75(D) prone to clogging when conveying sludge with large impurities?
A: HNA75(D) supports forward and reverse rotation. It can clear blockages quickly by reversing, and performs well for sludge containing various impurities.
Q: What about component wear when HNA75(D) transports corrosive sludge for a long time?
A: Only the hoses of HNA75(D) touch the medium, so metal parts will not be corroded. Using corrosion-resistant hoses effectively reduces component loss.
Q: Is the daily maintenance of HNA75(D) complicated?
A: HNA75(D) features a simple structure. Only the hoses are wearing parts, which can be replaced easily, so it requires little daily maintenance.
Q: Where to buy the HNA75(D) Dual-hose Sludge Transfer Pump?
A: You may contact our sales team via the email juicy@sxhono.com.cn to obtain product specifications, quotations and selection recommendations. If you have special application requirements, we can also provide you with customized fluid transfer solutions.
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