NEW DOSE DOSING PUMP SOUTH AFRICA
NEWDOSE MOTOR-DRIVEN DIAPHRAGM DOSING PUMPS SOUTH AFRICA
Doseco is the authorised South African distributor for Newdose, supplying the complete range of ND-type motor-driven diaphragm dosing pumps to industrial, municipal, and water treatment operations across South Africa. Newdose motor dosing pumps are engineered for precision fluid metering, combining powerful motor-driven operation with a spring-return mechanical diaphragm design that delivers consistent, reliable chemical dosing under demanding conditions.
The range includes three core models: the NDJ Motor Dosing Pump, built for heavy-duty continuous dosing; the NDWS Motor Dosing Pump, designed for versatile chemical injection applications; and the NDWL Motor Dosing Pump, optimised for wastewater treatment and process industries. With a flow capacity ranging from 1 to 6,000 litres per hour, the Newdose ND-type pump range scales from small chemical dosing systems through to large industrial metering installations. Optional ND electric stroke adjusters — available in manual or remote-controlled 4–20mA versions — allow precise flow rate adjustment without stopping the pump, making them ideal for automated dosing systems.
As Newdose’s appointed South African agent, Doseco provides local technical support, pump selection guidance, and fast supply of the full Newdose motor dosing pump range. Contact Doseco today for expert advice.
ND Type Mechanical Motor Dosing Pump
ND Electric Stroke Adjuster
As for ND electric stroke adjuster, Newdose can provide you with two types of dosing pumps including remote control electric stroke adjuster and manual control electric stroke adjuster. The adjuster receives an analog signal (4-20mA) and can accurately modify the displacement of the dosing pump.
Dosing Pump Faqs
How to set the pressure of the dosing pump safety valve?
The value of the safety valve should be in the range of the working pressure of the pump, cannot adjust the pressure higher than the max pressure of the pump. If the max working pressure of the pump is 3Bar, the safety valve should be set as 3 Bar, or lower than 3Bar. Over-pressure is one of the reasons that cause the broken of the pump.
What's the float switch of dosing pump and its function?
The float switch is a very important device to control the liquid level of the tank. The float switch can automatically control the start and stop of the pump according to the variation of required liquid level, with no need of a special person to care about, making operation quite easy.
When the level is lowered, the float sinks, and the contact point inside the switch is closed. This contact point can be used to control the metering pump. For example, it can stop the metering pump 1 and start the metering pump 2. On the other hand, it also can indicate that the cartridge is empty by turning on the alarm/indicator light. And the float switch can be applied to the tank to indicate that the tank is full and to stop the metering pump.
What types of dosing pump do you offer？
DOSECO pump has motor-driven dosing metering pump, the capacity range is 1~6000Lph.
What are the accessories come with the dosing pumps?
For solenoid dosing pump, there are filter, sprayer, connectors, and pipes in the accessory kit.
The motor-driven pumps don’t be equipped with any accessories. It has to choose the other parts according to the installation situation.
How to select a dosing pump?
Confirm the flow rate of the solution (how much liters of the solution should be transferred in one hour?)
Check the main characteristics of the solution, such as corrosivity, viscosity, concentration, and temperature.
Confirm the pressure of the dosing system.
Confirm the suction height.
Check if the dosing system needs any signal control, such as pulse signal, 4-20mA signal, or RS485.
What's the function of pulsation damper?
To select one proper size of pulsation damper could decrease at least 90% pulse, which makes the liquid flow more stable. Equipped with pulsation damper can help to slow down the accelerated speed of the flow and protect the pump head.
How to adjust the back-pressure valve?
Do not make the pressure value higher than the max working pressure of the pump can hold.
When there is pressure in the suction point, adjust the pressure of the injection point is 1bar higher than the suction point.