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Peristaltic Hose Pump for Construction and Mining

The Boyser RBT-100 peristaltic hose pumps available from North Ridge Pumps are high-pressure positive displacement pumps that feature a maximum design pressure of 15 bar (150 m).

This means, the pumps are capable of transferring highly viscous fluids at high pressures or long distances; therefore, this range of hose pumps is highly popular within the construction and mining sector.

North Ridge Pumps’ RBT pumps come with built-in frequency drives, certified ATEX, (explosion-proof) motors, VFD rated drive units, and hydraulic motors. Furthermore, the pumps are fitted with reinforced rotors and hoses, enlarged PU rollers, heavily-designed integrated bearings, and North Ridge Pumps’ patented clamping system. These features make the units appropriate for pumping virtually all kinds of fluids.

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Image Credit: North Ridge Pumps.

The RBT series peristaltic pumps are part of the positive displacement volumetric pump range. They are also called hose pumps. The pumps have a rather simple but extremely rugged design that allows them to be utilized even in the most challenging applications. For example, they can be used for transferring high-viscosity fluids and products, where there is a high concentration of solids; a majority of these are applications where other pumps will not be able to work. Standard fluids include resins, glue, paint, ink, oils, detergents, dyes, anti-foaming, sludge, mud, concrete, and effluent/sewage.

The pumping action in the “hose pumps,” which is one of their popular names, is carried out by a combination of a rotor with a set of rollers or shoes/pads that compress the hose as they rotate and a rubber hose that is situated within the pump’s casing.

Video Credit: North Ridge Pumps.

When the hose is simultaneously pressed and continuously rotated, the shoes force the fluid from the inlet side and direct it toward the hose’s discharge side. This mild pumping action implies that the flow rate obtained is directly proportional to the speed at which the shoes rotate and press the hose/tube.

The exclusive pumping action produces a negative pressure of up to 9 m.w.c. on the suction side of the pump. This means the pump can self-prime and achieve a suction lift of up to 9 m vertically. This feature together with the potential to manage gases and run dry for an indefinite period of time makes the peristaltic hose pump a perfect solution for a majority of the pumping applications.

Another benefit is that the pumps are simple and can be maintained cost-effectively. This is because the hose is the only wearing part in the pump and is also the only part that comes into contact with the fluid.

The RBT series is fully reversible and can be delivered either as variable speed or fixed speed. An extensive range of accessories is available to offer a complete customized solution for a majority of the applications. These applications have been described below.

Design Features and Benefits

  • Self-priming: Up to 9 m
  • Efficient: Minimal power consumption
  • Sealless: Risk of leaking is reduced
  • Runs dry indefinitely: There is no need to install any other device
  • Shear-sensitive: The product is pumped very gently
  • High dispensing precision: Perfect for dosing applications
  • Reversible flow ability: Suitable for fluid transfer and tank emptying applications
  • Perfect for food-grade applications: FDA approved
  • Can be cleaned easily because the inner hose is the only part that comes into contact with the product
  • Hose leakage detector is available: This detector is recommended for corrosive liquids and when the pump is working unattended
  • Needs low maintenance: Can be run economically
  • Resistant to corrosion and abrasion: Optional coating materials and connections

Typical Applications and Industries

  • Food/beverage transfer
  • Water Treatment
  • Chemical dosing
  • Sampling
  • Construction
  • Mining
  • Pharmaceutical
  • Agriculture
  • Paper industry
  • Chemical and industrial process transfer: Paint, ink, resins, glue, detergents, dyes, anti-foaming, oils, sewage, sludge, mud, and concrete

Accessories

  • Pulsation dampener is fitted downstream from the pump to guarantee stable and smooth flow. This is specifically useful when utilizing ancillary equipment like flow meters and pressure switches, or when quantifying the product for packaging, bottling, and so on.
  • Hose leakage sensor attached to the pump casing and also wired to an external control panel. It detects whether the internal rubber hose has broken and triggers alarm to alert that operator maintenance is required. This is specifically beneficial when running continuously for critical applications, managing unsafe fluids, and when the pump is unattended.
  • Anti-corrosive coating for corrosion resistance is recommended when the pump is installed in a hazardous or corrosive setting.
  • Variable speed drive—While the pump is supplied fixed speed as standard, an inverter can be fixed to the motor to allow variable flow rates. This provides an excellent solution for flow critical and dosing applications.
  • Air-operated vacuum pump is suggested for high suction lifts. The vacuum system makes sure that the hose does not fail under adverse conditions and allows easier priming for the pump.
  • Screw hopper feeder—For highly viscous and dry fluids, a screw/hopper system is fixed to the pump’s inlet side to allow the product to flow easily into the pump.
  • Mobile trolley—The pump can be delivered on a mobile trolley for moving around the location. Bespoke materials and dimensions are available on request.

Source: North Ridge Pumps.

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Flow rate Up to 21.1 m3/hour
Capacity/revolution 20 L/revolution
Head (pressure) Up to 15 bar
Inlet/outlet sizes/types DN100/BSP, ANSI, SMS, and NPT
Connection materials PP, PVDF, PTFE, S.S. and AISI-316
Temperature range –25 °C to 60 °C
Viscosity range 40,000 cSt
Solid passage Up to 100 mm
Max. suction lift Able to self-prime up to 9 m.w.c
Tube materials available NR, NBR, and EPDM

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