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Product code: NRDSM Control Peristaltic Metering Pump

Boyser NRDSM Control Peristaltic Metering Pump

Pump Type - Peristaltic

Max Flow Rate M³H - 0.03 M³H

Max Head - 71M

Max Temp - 80°C

Max Viscosity - 100,000 cst

Inlet/Outlet Sizes - 12mm

Drive - AC Electric

Power KW - 0.43kw

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This product has a delivery lead time of 21-28 days

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DESCRIPTION

NRDSM Control Peristaltic Metering Pump

The NRDSM Control is an advanced peristaltic Metering pump with built in controller to enable users to directly control and monitor dosing rates of fluids.

Designed for the metering, dosing and transfer of abrasive, viscous or gaseous liquids it transfers them without any possibility of air locking or clogging.

Its peristaltic design means the unit contains only a single wearing part – its high performance hose which guarantees exceptional chemical and wear resistance.

Not only does the hose guarantee many years of trouble free service but should the hose leak, a built in alarm stops the pump operating, preventing chemical leakage or waste.

Control of the pump is performed by an intuitive click wheel ensuring simple operation and adjustment of the pump. Dosing rate can be adjusted from ml to Litres or Gallons an hour with pressures available up to 7 bar. It is capable of dry running and to continuously dose in industrial applications.

Built with connectivity in mind, there is the ability to control the unit via leading process control systems, 4-20ma analogue control, contact controllers or timers. This enables the pump to be used in conjunction with float switches, flowmeters and level switches adjusting dosing rate as necessary.

The pump is driven by a long life brushless motor ensuring reduced maintenance, long lifespan, almost no electromagnetic interference and high efficiency.

Typical Areas of use are:

Chemical Industry
Electroplating
Food and Beverage Industry
Industrial Applications
Leisure Industry
Paper Industry
Wastewater Treatment

Product summary

Easy adjustment and display of dosing rate in L/h, Ml/h or gal/hour
Batch by volume, time or external contact e.g. float switch, external plc or flowmeter
Valve free metering on par with a diaphragm metering pump without external accessories
High Accuracy due to unit being calibrated according to fluid being dosed.
Tool Free hose change in minutes
Suitable for the transfer of abrasive, shear sensitive, viscous and gaseous liquids without chance of airlock or cross contamination.
Wide viscosity handling up to 100,000 cst
Control options include process control systems such as BUS (Profibus), Profinet and CANbus, or analogue 0/ 4-20ma signal, contact controller, or timer.
3 Configurable inputs and outputs for use with signal relays or trigger for timer programs
Built in alarm for hose replacement prior to rupture
Integrated calendar for function automation
Internet of Things (IOT) Enabled for control and feedback
Hoses available in TPV (Thermoplastic) & Polyurethane, Connectors in PVDF/PTFE
Accuracy +- 2% after 200 revolutions
Single Phase Power Supply in 100-230V, 50 or 60Hz
IP66 / NEMA 4X Motor
Ambient Temperature: up to 45°C

FAQS

Can this pump run dry?

Yes, absolutely! Due to their unique design, peristaltic pumps can run dry indefinitely. As there is no mechanical seal that requires lubrication and the only pumping component is a rubber hose, the pump can run without fluid for long periods without risk of damage to the internal components or motor.

What does the term self-priming mean?

A pump must be primed in order to operate correctly, this means that the pump casing and inlet pipe must be filled with fluid and the air removed before operation. This needs to be done manually by the pump operator for a non-self-priming pump each time the pump is used to avoid damage from dry running. A self-priming pump removes these issues by completing the priming process automatically. The air is removed from the inlet pipework and pump casing when the pump is activated. Self-priming pumps are particularly useful for installations with a suction lift on the inlet side of the pump, the pump will draw the fluid up the pipework by creating a vacuum and removing any air that is present. In ideal conditions, a self-priming pump can lift fluids up to around 9m on the inlet side, however this figure is affected by fluid viscosity, pipework bore and other installation conditions, therefore this figure can be much lower from case to case. Allowances must also be made for wear and tear; suction lift capabilities will be much lower for older and worn pumps.

What size solids can this pump handle?

Please be aware that the figures displayed relate to the largest pump from this range of products, not specific models. A typical rule of thumb with peristaltic pumps is that the maximum solids size is equal to the internal diameter of the hose. For details on solids passage for specific models, please refer to datasheets or contact a member of our sales team.

What viscosity can this pump handle?

Please be aware that the figures displayed relate to the largest pump from this range of products, not specific models. For details on viscosity for specific models, please refer to datasheets or contact a member of our sales team.

How do I know what size pump and motor speed is correct for my application?

A clear picture of the pump system is required to make an accurate selection. The main pieces of information required include; a description of the application, bore of pipework, the fluid, viscosity, size and type of solids, flow rate and pressure/head. With these pieces of information, a pump can be sized correctly to ensure it delivers the required flow rate and pressure and that is also operates at its best efficiency point to lower lifetime costs. Viscosity is a major factor when selecting the correct motor speed. A full speed pump will not transfer high viscosity fluid correctly, whereas a slower speed pump will have a much gentler pumping action. Knowing if the pump is running intermittently or continuously also allows the correct motor speed to be selected. For instance, a pump running continuously 24/7 will require a slower speed motor rather than a full speed motor. Running the motor slower and oversizing the pump will reduce wear of the motor and the pump, therefore lowering maintenance costs during their lifetime.

How do I know what pump materials are correct for my application?

Firstly, always check the compatibility of the materials available against the fluid being pumped. The main materials to check are the connections and the hose. It may be that more than one material is suitable for your fluid and selection could be based on the application type. For instance; NR, NBR, EPDM, NBR-A, HYPALON, NORPRENE are all suitable for water. If it is a simple transfer application, then the most cost-effective material will be best. However, if it involves abrasive solids or there is another variable to consider, then an alternative material may be a better selection.

What is the difference between a roller pump and a shoe pump design?

Rollers and shoes are the rotating components in peristaltic pumps, they are two different designs for different application types. Although different, both operate in a very similar manner. The shoes/rollers are connected to a shaft from the motor/gearbox, these rotate at a low speed and squeeze the hose inside the pump to force the fluid round.

The roller design has the main benefit that far less lubrication is required for the hose, however the pump is limited to a maximum pressure of 8 bar.

Other benefits of the roller design include;
• Longer hose lifespan, energy savings up to 30% compared to a shoe pump design.
• Easier maintenance (there is no need to drain lubricant from the pump and then to refill again, less mess).
• Any product leakage is 100% recoverable from the drainage port (lubricant from a shoe pump can mix with the leaked product and is then not recoverable).

The shoe design requires the hose to be submerged in large quantities of lubricant, however the pump can achieve pressures up to 15 bar.

Both designs are available with the same types of inlet/outlet connections and accessories such as variable speed drive and leakage sensor. The best solution for you is entirely dependent on the application, fluid and flow rate/pressure requirements.

How long will the hose in my pump last?

This depends entirely on the application and can vary case by case. The life of the hose is affected mainly by the abrasiveness of the product being pumped, the pump speed (RPM) and how many hours a day the pump is operating. Hose life can be optimized by making the correct pump selection at the beginning of the process. For example, we recommend installing a larger pump running at a very low RPM if the fluid is abrasive and the pump is running 24 hours a day. By using a larger pump at a slower speed, the hose will wear far less, and the life will be extended significantly.