Dual Hose High Viscosity Peristaltic Pump

 

The HNA75(D) dual-hose high-viscosity peristaltic hose pump is custom-built for conveying high-viscosity liquids, thick paste materials, glue, paint, resin and oily viscous media in chemical, coating, new material and food industries. Featuring a seal-free and valve-free design, it delivers powerful self-priming capability with a vacuum degree of up to 97%, allows long-term dry running without damage, and supports a maximum working pressure of 1.6 MPa. Only the high-elasticity and oil-resistant dedicated hose comes into contact with the medium to avoid medium deterioration and equipment corrosion. The dual-hose pressurized conveying design provides stronger discharge pressure, which can easily handle ultra-high viscosity media that are difficult for ordinary pumps to transport. The low-shear conveying structure keeps the original physical properties of viscous materials unchanged. It supports forward and reverse operation to easily clear pipeline blockages and empty residual viscous materials, while maintaining outstanding metering accuracy. With a rated flow of 30m³/h and a matched power of 15kW, the high-viscosity dual-hose pump operates steadily with a compact structure and easy maintenance. Multiple hose material options are available to adapt to oil resistance, corrosion resistance and different high-temperature viscous working conditions, making it an ideal professional choice for long-distance and high-pressure conveying of various high-viscosity materials.

 

 

 

 

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.

 

 

 

1. The dual-hose alternate suction & discharge structure of HNA75(D) reduces flow pulsation, realizing uninterrupted feeding for high-viscosity paste and thick slurry without feed interruption.

2. All metallic parts of HNA75(D) are isolated from process fluid. Custom hoses bear erosion and chemical attack, avoiding rust and mechanical abrasion of pump housings.

3. HNA75(D) eliminates vulnerable parts such as mechanical seals and check valves, adopting a smooth straight-through flow channel without any dead corners or grooves. It avoids material accumulation, crystallization and solidification caused by poor fluidity of high-viscosity medium. The pump can run 24-hour continuous operation without frequent shutdown for cleaning, fully meeting the demands of automated production lines.

4. HNA75(D) supports long-term safe dry running without medium lubrication, adapting to intermittent feeding working conditions. Once blockage occurs, reverse rotation can realize pipeline self-cleaning without pump disassembly. Besides, only the hose is the wearing part of HNA75(D), which is easy and fast to replace, greatly reducing maintenance time and production line downtime.

 

 

● Chemical Industry

HNA75(D) is used to convey high-viscosity media such as resin, cement mortar and chemical pastes, as well as chemical slurry with fine particles, suitable for chemical batching and material transfer.

 

● Coating and Ink Industry

With low shear force and low pulsation performance, HNA75(D) will not damage ingredients of coatings and ink slurries, realizing stable transportation and preventing material delamination and deterioration.

 

● Building Materials and Ceramics Industry

HNA75(D) is applicable for conveying high-consistency building materials including ceramic mud, putty paste and waterproof slurry. It resists wear from fine sand particles and runs stably without blockage.

 

● Daily Chemical and Food Industry

HNA75(D) can transport high-viscosity pastes such as toothpaste, cream and jam. Its closed conveying mode ensures no pollution, meeting clean transportation requirements of daily chemical and food production lines.

 

 

 

 

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.
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.
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.
CR	CR boasts good resistance to oil, heat, ozone, acids, alkalis and chemical reagents. Temperature range: -20°C to +80°C.
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.
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.
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.

 

 

 

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