Dosing Pumps Manufacturers

Dosing Pumps – The best choice for precise metering applications

Roto Pumps is one of the leading Dosing Pump manufacturer. Dosing pumps are considered to be the most suitable option for precise dosing applications. They are designed and built to transfer clean and clear fluids. These pumps are the best option for low-flow applications as they can handle the capacity of a minimum flow of 0.68 LPH. So, these kinds of pumps are the perfect choice for facilitating high accuracies and repeatability while ensuring a smooth and non-pulsating flow. Dosing pumps can handle the maximum flow of 500 LPH and pressure up to 24 bar. These pumps have the advantage of providing for both intermittent and continuous dosing duties. They also facilitate proportionate dosing of media. All these features have enabled Roto Pumps to stand tall amongst the top Chemical Dosing Pump manufacturers.

RJ Series Pump

Capacity: between 0.68 – 500 lph
Pressure: up to 24 bar

Dosing Pump manufacturer


Dosing ‘RJ’ Series Pumps

Size RJ01 RJ03 RJ07 RJ14 RJ30 RJ80L
7 17 42 84 166 460
0.03 0.076 0.185 0.371 0.732 2.025
24 24 24 24 24 6
348 348 348 348 348 87

• Cast Stainless Steel

• Natural • Nitrile • High Nitrile • EPDM• Chloro-Sulphonated Rubber • Fluoroelastomer • Aflas • HNBR

• Stainless Steel

• Stainless Steel

• Stainless Steel

• Duplex • Super Duplex • Alloy 20 • Haste Alloy

• Ceramic Coatings • Tungsten Carbide • Hard Chrome Plating

Dry Running Protection Device:
To prevent the stator damage due to dry running specially developed temperature sensor is screwed into the stator wall to monitor the operating temperature. Due to any reason if the pump runs dry, the stator temperature will increase. Roto DRP would switch off the pump at preset temperature.

Pressure Switch:
To prevent the pump from damage due to over pressurization in the discharge as well as low pressures beyond the capability of the pump. This system trips the pump and protects the pump as well as the system.

Gauges (Pressure, Vacuum, and Differential):
These devices are especially important for the system with dynamic working characteristics, that require constant monitoring. The selection of gauge requires consideration of process, environment, accuracy, dial size, connection & mounting. It is advised to limit the normal working pressure to 25-75% of the scale of the gauge.


Relief Valves:
In addition to relieving excess pressure from closed-top vessels or piping systems, these normally closed valves provide system control benefits. It is versatile and widely utilized valve. Its compact size, ease of setting, readjustment and repeatability, all contribute to its popularity. The pressure setting is done manually.


A Strainer is an inexpensive “insurance” for protecting pumps. There is often unwanted matter present which can cause serious problems. Dust, foreign matter, or even clumps of product itself, can clog or damage critical & expensive equipment. Another factor to consider is the cost of downtime.


MEDIA PROPERTIES: Low to high viscosities with solids.
APPLICATIONS: Domestic & industrial sewage treatment.
DESCRIPTION: Single acting, unbalance, single helical coil spring .elastomeric bellow seal and bi-directional.
PRESSURE RANGE: Up to 24 bar

Waste Water Treatment






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