SEKO AKS Dosing Pump — Manual Constant Chemical Dosing
What Is the SEKO AKS Dosing Pump?
The SEKO AKS dosing pump is the workhorse of the Tekna Evo range — a manually adjusted, constant-flow solenoid diaphragm dosing pump designed for water treatment applications that require reliable, uninterrupted chemical injection without the need for external signal control. Set the dial, and it doses. No PLC, no flow meter, no programming required.
For South African water treatment engineers who need a dependable, low-complexity dosing solution for chlorination, pH correction, antiscalant injection, or effluent conditioning, the AKS delivers exactly what it promises — accurate constant dosing, day after day, at one of the most competitive price points in the SEKO range.
SEKO AKS Dosing Pump Performance Specifications
All SEKO AKS dosing pump models share the same robust construction:—
- PVDF pump head
- PTFE diaphragm, and ceramic ball valves — ensuring broad chemical compatibility across the range.
- The model number determines the flow rate and pressure combination.
Click on the PDF link above for a full technical data sheet.
For example the AKS 603 NHP 0000 is:-
The 603 flow and pressure capability of the 603 version.
The N = 100 to 240 volt AC (50/60 Hz)
The H = PVDF pump head material of construction.
The P = PVDF-T installation kit MOC (Suction foot valve and injection valve)
The 0000 represents a Viton seal arrangement for all components.
How the SEKO AKS dosing pump Works — Manual Operation Explained
The AKS operates on a simple but precise principle. A solenoid-driven diaphragm creates positive displacement strokes at a fixed frequency. The operator adjusts the stroke length via the manual dial on the front panel — this controls the volume of chemical delivered per stroke and therefore the total flow rate. The pump runs continuously while powered, making it ideal for applications where a fixed, known chemical dose is required against a known flow.
There are no external inputs, no signal cables, and no programming. For applications with consistent flow rates and stable chemistry, this simplicity is a significant operational advantage — fewer failure points, easier maintenance, and straightforward commissioning.
Primary Applications for the AKS pump in South Africa
- Chlorine dosing on municipal and industrial water treatment plants
- Antiscalant injection on reverse osmosis pre-treatment systems
- pH correction on cooling tower and boiler feed water systems
- Effluent conditioning and chemical treatment prior to discharge
- Acid or alkali dosing on process water streams
- Biocide injection on HVAC and industrial cooling systems
Chemical Compatibility
The PVDF pump head, PTFE diaphragm, and ceramic ball valves make the AKS compatible with a broad range of aggressive industrial chemicals. Standard models are supplied with FPM (Viton) seals, suitable for acidic and oxidising chemicals including sodium hypochlorite, hydrochloric acid, and hydrogen peroxide. EPDM seal variants are available for alkaline chemicals including sodium hydroxide, ammonia, and coagulants.
Not sure which seal material is correct for your chemical? WhatsApp us with your chemical name and concentration — we will confirm the correct AKS specification within minutes.
💬 Get an Instant Quote on WhatsApp Message us: “I need the SEKO AKS — please confirm correct seal material for my chemical”— we respond within minutes WhatsApp / Call: 060 559 3487 |
Why Buy the SEKO AKS pump from GM Pumps?
GM Pumps has been the specialist SEKO distributor in Southern Africa since 1992. Every AKS pump we supply is sourced directly from SEKO S.p.A. Italy, supported by local stock across Durban, Cape Town, and Johannesburg, and backed by our technical team’s hands-on application experience across hundreds of South African water treatment installations.
We don’t just dispatch a box. We confirm your application, verify your chemical compatibility, check your pressure requirements against the model you’re ordering, and follow up after installation. That is the GM Pumps difference — and it is why South African water treatment professionals have trusted us for over three decades.