Boyser DSM Peristaltic Dosing Pump

DESCRIPTION

BOYSER DS-M Peristaltic Dosing Pumps

The DS-M pumps are our smallest peristaltic pump series, these hose pumps are very common within the Chemical and Food industry, typically used for dosing or simply transferring small amounts of products at low pressure, they have a quite compact design whilst still being very powerful as they can reach a discharge head of 20 metres. These pumps have 6 different tube diameters which can be interchangeable between the 18 pump sizes/configurations available. All pumps are fitted with a triple rotor containing three rollers as standard this design feature makes the DS-M range highly accurate whilst it minimises flow pulsations.

Typical Applications/Industries:

Chemical Dosing.

Water Treatment.

Food/Beverage Transfer.

Sampling.

Paper Industry.

Pharmaceutical.

Paper Industry.

Agriculture.

Models/Configurations Available

Gearbox/Motors: 50 Hz-1450 RPM / 60 Hz-1720 RPM

Fixed Speed Pumps - Flow rate shown on ml/min

Model No.	kW Motor	Speed	Ø 0.8 mm	Ø 1.6 mm	Ø 3.2 mm	Ø 4.8 mm	Ø 6.4 mm	Ø 8.00 mm
DSMA10	0. 12 KW	14 RPM	2.2 ml/min	5.6 ml/min	23.2 ml/min	53.2 ml/min	78.6 ml/min	140 ml/min
DMSA11	0.12 KW	35 RPM	5.6 ml/min	14 ml/min	58.1 ml/min	133 ml/min	219 ml/min	350 ml/min
DSMA12	012 KW	70 RPM	11.2 ml/min	28 ml/min	116 ml/min	266 ml/min	438 ml/min	700 ml/min
DSMA13	0.18 KW	93 RPM	14.9 ml/min	37.2 ml/min	154 ml/min	353 ml/min	582 ml/min	930 ml/min
DSMA14	0. 18 KW	140 RPM	22.4 ml/min	56 ml/min	232 ml/min	532 ml/min	876 ml/min	1400 ml/min

Gearbox/Motors: 50 Hz-1450 RPM / 60 Hz-1720 RPM

Pumps with Integrated VFD & Start/Stop Switch

Flow rate shown on ml/min – Freq. Range: 7 – 70 Hz

Model No.	kW Motor	Speed	Ø 0.8 mm	Ø 1.6 mm	Ø 3.2 mm	Ø 4.8 mm	Ø 6.4 mm	Ø 8.00 mm
DSMA20	0. 18 KW	5 - 50 RPM	0.8 – 8 ml/min	2 – 20 ml/min	8.3 – 83 ml/min	19 – 190 ml/min	31.3 – 313 ml/min	50 – 500 ml/min
DMSA21	0.18 KW	10 - 100 RPM	1.6 – 16 ml/min	4 – 40 ml/min	16.6 – 166 ml/min	38 – 380 ml/min	62.6 – 626 ml/min	100 – 1000 ml/min
DSMA22	0.18 KW	13 - 130 RPM	2.1 – 20.8 ml/min	5.2 – 52 ml/min	21.6 – 216 ml/min	49.4 – 494 ml/min	81.4 – 814 ml/min	130 – 1300 ml/min

Gearbox/Motor: 50 Hz-1450 RPM / 60 Hz-1720 RPM

Pumps with Special VFD Rated Motor – With Forced Cooling & PTC Sensors

Flow rate shown on ml/min – Freq. Range: 3 – 75 Hz

*FREQ. INVERTER NOT INCLUDED*

Model No.	kW Motor	Speed	Ø 0.8 mm	Ø 1.6 mm	Ø 3.2 mm	Ø 4.8 mm	Ø 6.4 mm	Ø 8.00 mm
DSMA30	0. 18 KW	2 - 53 RPM	0.3 – 8.5 ml/min	0.8 – 21.2 ml/min	3.3 – 88 ml/min	7.6 – 201 ml/min	12.5 – 332 ml/min	20 – 530 ml/min
DMSA31	0.18 KW	4 - 105 RPM	0.6 – 16.8 ml/min	1.6 – 42 ml/min	6.6 – 174 ml/min	15.2 – 399 ml/min	25 – 657 ml/min	40 – 1050 ml/min
DSMA32	0.18 KW	6 - 140 RPM	1 – 22.4 ml/min	2.4 – 56 ml/min	10 – 232 ml/min	22.8 – 532 ml/min	37.6 – 876 ml/min	60 – 1400 ml/min

Gearbox/Motor: 50 Hz-1450 RPM / 60 Hz-1720 RPM

Pumps with Mechanical Speed Controller – 50-60Hz Freq.

Flow rate shown on ml/min

Model No.	kW Motor	Speed	Ø 0.8 mm	Ø 1.6 mm	Ø 3.2 mm	Ø 4.8 mm	Ø 6.4 mm	Ø 8.00 mm
DSMA40	0. 12 KW	3 - 14 RPM	0.5 – 2.2 ml/min	1.2 – 5.6 ml/min	5 – 23.2 ml/min	11.4 – 53.2 ml/min	18.8 – 87.6 ml/min	30 – 140 ml/min
DMSA41	0. 12 KW	4 - 22 RPM	0.6 – 3.5 ml/min	1.6 – 8.8 ml/min	6.6 – 36.5 ml/min	15.2 – 83.6 ml/min	25 – 138 ml/min	40 – 220 ml/min
DSMA42	0. 12 KW	7 - 38 RPM	1.1 – 6.1 ml/min	2.8 – 15.2 ml/min	11.6 – 63.1 ml/min	26.6 – 144 ml/min	43.8 – 238 ml/min	70 – 380 ml/min
DSMA43	0. 12 KW	11 – 57 RPM	1.8 – 9.1 ml/min	4.4 – 22.8 ml/min	18.3 – 94.6 ml/min	41.8 – 217 ml/min	68.9 – 357 ml/min	110 – 570 ml/min
DSMA44	0. 12 KW	14 – 75 RPM	2.2 – 12 ml/min	5.6 – 30 ml/min	23.2 – 124 ml/min	53.2 – 285 ml/min	87.6 – 469 ml/min	140 – 750 ml/min
DSMA45	0. 12 KW	22 – 133 RPM	3.5 – 18.1 ml/min	8.8 – 45.2 ml/min	36.5 – 188 ml/min	83.6 – 429 ml/min	138 – 707 ml/min	220 – 1130 ml/min
DSMA46	0. 25 KW	34 – 176 RPM	5.4 – 28.2 ml/min	13.6 – 70.4 ml/min	56.4 – 292 ml/min	129 – 669 ml/min	212 – 1102 ml/min	340 – 1760 ml/min

Flow Rate	Up To 105 l/h
Head (Pressure)	Up to 2 bar
Internal Hose Sizes Ø	0.8 – 8 mm
Temperature Range	-15 to 80 °C
Viscosity Range	8,000 cSt
Solid passage	Up to 8 mm
Tube Materials	Norprene, Solva, Silicone, Tygon

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.