The Cape Town office has moved to 11 Mobile road, Airport Industria, Cape Town.
We are in office #1 Xtraspace complex.
The Cape Town office is available for distribution/collection/on site support.
For sales and technical support please call 021 0125237 before visiting the office as there may not be anyone available to assist you.
Thank you for your interest in our quality products.
Seko Dosing Pumps available in Cape Town
Within the GM PUMPS CC stable, the SEKO dosing pump product has burst out of the stall with the establishment of our new Cape Town office. Open for 8 months this office has grown to plan.
The office was established to support users and provide a venue for training and hands on experience with the products we offer. While GM PUMPS CC also distributes filtration and other pump brands, the SEKO range of product has specific requirements for new users.
The demand to see and experience the product, to be trained in the set up and learning to correctly calibrate the Seko units instituted the establishment of our operating display system on site in Milnerton, Cape Town, South Africa.
Used as a first point of contact, chemical dosing pump users are able to touch and feel the dosing systems which enables them to confidently enter the field with this reliable equipment range.
SEKO is certainly a winning product and GM PUMPS CC is committed to providing an excellent service with competitive pricing. WE are always open to discussing preferential discounting on bulk purchasing demands.
Please contact Matt Paulse in the Milnerton office to arrange a visit and experince our product and service range.
Norman +27 64075 8174
Tennille +27 21 012 5237
Evan +27 82 651 9841
An old petrol pump
The original metering pumps used a plunger mechanism, and came into use during the 1930s. They used a crank to drive the piston, and the flow rate of the pump could be changed by adjustment of the crank. Unfortunately, the piston had direct contact with the liquid being pumped, and so were subject to leaks, making the pumps inaccurate – especially when the fluids being pumped were corrosive or had a lot of suspended particles
This problem was solved 20 years later, with the introduction of hydraulic diaphragm pumps. In these pumps, the piston was separated from the fluid being pumped. A diaphram divided the pump into two chambers. The piston would drive hydraulic oil into and out of one chamber, which in turn would cause the diaphragm to flex. This flexing would displace water into and out of the other chamber. As the oil was clean and non-corrosive, the nature of the fluid being pumped would not affect the piston. The diaphragm was free from leaks and could be made of a corrosion-resistant material.
In the 1970s, solenoid technology was applied to metering pumps. The diaphragm was now flexed by the magnetization of a solenoid coil. This dropped the purchase cost of metering pumps significantly, due to a reduction in the number of moving parts, and also meant that maintenance was cheaper. Importantly, solenoid technology allowed metering pumps to accept electronic signals, moving the metering pump closer to the digital age.
At first these solenoid-driven pumps had a significant flaw – they could only be run at high speed. Therefore, they had reduced accuracy, could not be used to pump fluids that would be damaged by high-pressure pulses, and the diaphragm wore out faster than other designs. Over the years, motors have improved with new technology, from new kinds of motors, to digital flow meters and controllers, increasing their accuracy, regulating strokes with precision, and negating many of the flaws they once had.
Dosing generally applies to the feeding of chemicals or other liquid additives, in accurately measured small quantities, into a process fluid at intervals to give sufficient time for the chemical to react or show the results. Diaphragm dosing pumps or piston dosing pumps are commonly used. The use of peristaltic or tube dosing pumps is also preferred by some users.
A peristaltic pump is generally preferred by the laundry and catering industries due to the ease of operation and the relatively low cost. These are regarded as the cheapest type of dosing pump for high volume installations where the price of the pump is amortised into the price of the supplied fluid detergent, brightener, softener etc. The peristaltic pump is ideal for measuring the exact dosing for each wash or rinse cycle. Dosing pumps are in reality a metering pump and these terms are used to refer to the same type of pump unit. A dosing pump can be a high pressure pump, however there is a large user base where the dosing of additives is into either no pressure or very low pressure systems.
A reliable dosing pump supplier will offer all types of pumps to suit each application. Acids are commonly dosed into process fluid streams by pumps with the wet component in materials suitable for reliable and safe handling of the specific acids being. The wetted pump chamber is typically PVDF, Poly Propylene, Stainless steel or some other noble metal. Valve seats are also in the same materials with Teflon (PTFE) valve balls and diaphragms making up the most common materials when speaking about diaphragm or piston dosing pumps.
Chemical pumps are available in all types of materials and it is important to specify the acid or alkali or other additives to be dosed.
Aquarium dosing pump
Dosing pumps are also necessary on saltwater aquarium systems if one wishes to automate the calcium and alkalinity dosing. The small SEKO PR1 peristaltic pump is a very popular choice and can be automated with reef timer systems available from saltwater aquarium equipment suppliers. Seko will welcome all enquiries for the aquarium dosing pump arrangement we are able to supply.
Industrial dosing pump
Pumps are not all the same regardless of what industry wisdom tries to preach. When one considers a chemical dosing pump application, the chemical pump one has in mind is not a dosing or metering pump. Dosing pumps are not common applications to most industrial fitters or engineers and do not generally form part of their experiences on a daily basis. Typically dosing pumps would be used in water treatment on chillers, heat exchangers, cooling towers and on the odd occasion in the actual process stream when specific chemicals or additives need to be injected into the system. Dosing pumps can also be used in lubrication applications for grease or oils. Many of these applications are out sourced from the suppliers of the chemicals, additives or lubricants.
Swimming pool dosing pumps
Large swimming pools are generally maintained from a pH and Chlorine point of view by installing chemical dosing pumps. The pumps are controlled by probes for Redox (chlorine values in the water) or Ph which are directly coupled to the suitable Seko dosing pump designed for that application. The pumps are similar to those used in Industrial applications. Generally two pumps one with alkaline dosing and one with acid dosing would be connected to a pH controller and as the demand for either acid or alkaline is registered, the relevant pump will activate. Redox is controlled in a similar manner with liquid chlorine being measured by the dosing pump at the correct dosage based on the redox reading. Seko has a specific range of dosing pumps for Redox and Ph which integrate the redox controller (probe connects directly into the pump) or pH.
The metering pump industry is extremely competitive with many users looking for the cheapest options based on the dosing volume in litres per hour and pressure in bar. Price however cannot be the only consideration and here Seko have poured huge resources in terms of research and development into developing a high quality, economical and efficient, low cost of ownership dosing pump range. As far as economically priced dosing pumps is concerned, Seko have added the correct stock profiles for each country they service. This means that when a specific dosing pump is required, Seko generally have that item ex stock in the country where it is required. Seko dosing pumps are also supported by a dealer network of qualified and experienced people.
Regardless of what one requires a dosing pump for, whether it be an aquarium dosing pump, a swimming pool application or industrial dosing pumps for some specific process additive, Seko generally has the right pump for your application. Dosing is a science which when coupled to the correct metering pump equipment, becomes an art. In terms of a high pressure pump for dosing, Seko is capable of supplying units which inject specific measured doses up to 20 bar.
The range of solenoid driven diaphragm dosing pumps, peristaltic metering pumps and electric motor TEFC electric motor piston and diaphragm dosing pump options ensure a comprehensive solution to most applications in the industry.
The dedication of the Seko dosing pump sales and service team at GM Pumps cc in South Africa is evident in the value of the Seko agency to provide interesting and varied work to each team member. The work generated is considered by employees as direct Seko jobs, the terms of employment require dedication to understanding the industry. All aspects of the chemical, detergent and brightener metering systems industries is quickly picked up as the new employee grapples with the various dosing systems. Many new employees do not have any background in chemical dosing at all, yet through work experience and the desire to serve customers correctly the information soon enables them to develop their Seko job into a very viable career.
If you have an interest in learning chemical dosing systems and becoming a part of our international Seko sales and service team in Southern Africa, please send us your details sales@gmpumpsa.com
Seko has been involved in manufacturing dosing pump equipment since the 1970’s. The company has expanded world wide including into the economic powerhouse China. Used extensively in the water treatment industry, Seko solenoid diaphragm pumps have gained a formidable reputation for reliability and cost effective ownership with many industrial users.
Seko solenoid diaphragm pump
As the world rises like the phoenix from the ashes of apathy for the environment, a new attitude of responsibility and concern for our world is taking hold. Seko is at the forefront of chemical dosing research, birthing new and more cost effective technologies for swimming pools and spa water treatments as well as industrial effluent, laundry and catering detergent and chemical injection systems.
Seko dosing pump products and integrated systems work in all environments and in all spheres of industry.
GM Pumps cc distributes the Seko range of peristaltic, solenoid and motor driven dosing pumps as well a small drum and IBC mixers. Please call our offices on 031 777 1629 or mobile 0826519841 or email sales @gmpumps.com
Seko dosing or metering pumps are distributed and supported by the Durban based distributor GM Pumps CC.
Evan Lewis is the sales, marketing and technical contact and can be reached on +27 82 651 9841 or email evan@gmpumpsa.com
Offices and workshops are at “The View” 1 zulu reserve road, Bothas Hill, Durban, South Africa.
The company is developing a full live demonstration and training facility for customers to experience the product in all facets.
Peristaltic tube pump by Seko
Seko in South Africa are stocking the high quality, low cost, economical chemical dosing Kompact range in two variations. The AMS 200 is the standard constant dosing pump version and the AMC 200 is the proportional metering pump which is capable of being controlled by the pulse generated from a water flow meter.
Speak to one of our Seko dosing /metering pump specialists for more information.
The Seko Tekno Evo TPR Dosing Pump for Redox and pH control is an absolute winner. This solenoid metering pump, coupled to the appropriate probe is a plug and play, compact chemical metering pump. The popularity of these diaphragm pump units is seen in the number of pump systems which incorporate Seko in their build. This highly reliable range is both cost effective and efficient in terms of chemical feed into a process or water treatment duty.
Please call +27 31 7771629 for more information or email sales@gmpumpsa.com
Seko Tekno Evo AKS range is the very basic model in this analogue solenoid chemical dosing pump range. The unit allows the operator to set the dosing rate which is continuous if set on the pump program interface alone. One is able to choose a full 0 to 100% range or the reduced 0 to 20% range. The unit can be coupled to a Seko controller for a more accurate and controlled proportional dosing system.
The PDF below provides all the technical data relating to the Seko Tekno Evo AKS range.
Please call 082 651 9841 for more assistance or email sales@gmpumpsa.com