What Brand Is a SEKO Dosing Pump? The Italian Maker and Its Product Lines

Customers often send us a photo of a pump nameplate with SEKO printed on it and ask who makes it and whether spare parts are easy to get. Some people even search for it as "SKEO". In short, the SEKO dosing pump comes from an Italian manufacturer whose range runs from small solenoid pumps dosing a few liters an hour up to hydraulic diaphragm pumps handling thousands of liters at hundreds of bar.

Here we cover the company background, split the range into four groups, then explain how to narrow down a model.

Who Makes the SEKO Dosing Pump

SEKO describes itself as a privately owned family company. According to its Chinese catalog, it has more than 40 years of experience designing, developing, testing and manufacturing metering pumps. The sales network is broad: direct sales teams in more than 20 countries, plus certified distributors, serving customers in more than 120 countries. It has production sites in Europe, the Americas and Asia.

The business is organized around three areas: cleaning and hygiene, water and industry, and industrial processes. Cleaning and hygiene covers kitchens, commercial laundries, surface cleaning and disinfection, car washes and swimming pools. Water and industry covers cooling towers, energy, food and beverage, and wastewater. So it's no surprise to find a small SEKO dosing pump in a laundry or pool plant room and a SEKO hydraulic diaphragm pump in a chemical plant.

The catalog also notes that the housings of its dosing pumps and instruments are rated IP65, every product is 100% tested before shipment, and the hydraulic diaphragm pumps carry ATEX certification.

Solenoid SEKO Dosing Pump Lines

This is the SEKO dosing pump group you see most in water treatment. The five series and their limits:

• TEKNA: up to 54 L/h, up to 20 bar;
• TEKBA: up to 54 L/h, up to 20 bar;
• KOMPACT: up to 9 L/h, up to 10 bar;
• KOMBA: up to 9 L/h, up to 10 bar;
• INVIKTA: up to 6 L/h, up to 7 bar.

TEKNA and TEKBA cover the widest range, KOMPACT and KOMBA lean toward small flows, and INVIKTA targets OEM, pools, car washes, cooling towers and reverse osmosis. The standard build is a PVDF head, ceramic balls and a PTFE diaphragm, and the catalog says diaphragm life exceeds 5 years. We break down the models and control versions in a separate article.

Reading the Series From a Nameplate

If all you have is an old SEKO dosing pump and you need a replacement, the first letters of the model code usually tell you the series. Solenoid models start with the control version: AKS, AKL, APG, TPG and TPR are TEKNA; EMS, EML, EMC and EMM are TEKBA; AMS, AML, AMC and AMM are KOMPACT; DMS, DML, DMC and DMM are KOMBA; KCL is INVIKTA. Motor-driven pumps are simpler: MM1 and MM2 are KOSMO, and MS1, MSA, PS1 and PS2 match their own series. Once you know the series, the remaining characters give the flow size and head material, and finding a replacement gets much faster.

Hydraulic Diaphragm SEKO Dosing Pump Series: NEXA and NYVA

For high pressure or zero leakage, look at these two series, both designed and built to API675.

NEXA is a hydraulic double-diaphragm pump with up to 9000 L/h per head and up to 200 bar, split into the YN, TN and HN sub-series. The double diaphragm has a rupture alarm, so if one diaphragm fails the pump can keep running until maintenance can be scheduled. NYVA is a hydraulic single-diaphragm pump with up to 660 L/h and 124 bar, in CB0 and CB1 sub-series. Both handle fluid temperatures from -10℃ to 70℃ and offer SS316L, PVC or PVDF heads.

Mechanical Diaphragm and Plunger SEKO Dosing Pump Lines

The catalog lists five motor-driven series:

1. KOSMO: up to 2300 L/h, up to 12 bar;
2. MS1: up to 1200 L/h, up to 10 bar;
3. MSA: up to 120 L/h, up to 5 bar;
4. PS2 plunger pump: up to 1000 L/h, up to 20 bar;
5. PS1 plunger pump: up to 304 L/h, up to 20 bar.

Mechanical diaphragm pumps fit duties with more flow than a solenoid pump can give and low to medium pressure, such as flocculant dosing at a wastewater plant or acid and caustic neutralization. Plunger pumps reach higher pressure but have dynamic seals, so they suit fluids where a little seepage is acceptable.

How to Choose a SEKO Metering Pump

Knowing who makes the SEKO dosing pump is only step one. Selection still comes back to the duty, and we usually suggest this order.

Start with flow. A few liters to a few dozen liters an hour, look at the solenoid SEKO dosing pump lines. Hundreds to thousands of liters, move to the mechanical diaphragm pumps. Very high pressure or a toxic fluid that must not leak, look at hydraulic diaphragm pumps.

Then pressure. Every SEKO dosing pump series figure is a maximum, and the highest-flow model usually has the lowest pressure, so check the actual injection pressure against a specific model.

Finally, sourcing and spares. The Chinese catalog we work from is the 2017 edition, so the model list may have changed. Before ordering a SEKO metering pump, confirm with the supplier which models are currently sold and how spares are supplied, especially wear parts like diaphragms and balls.

If the project has no brand requirement, it's also worth comparing a domestic option under the same duty, such as NEWDOSE solenoid and mechanical diaphragm pumps, looking at lead time, spares and service side by side.

Conclusion

So what brand is a SEKO dosing pump? It comes from an Italian family-owned company with a broad range: five solenoid series including TEKNA and KOMPACT for small flows, NEXA and NYVA hydraulic diaphragm pumps for high pressure, and KOSMO, MS1 and MSA mechanical diaphragm pumps plus PS plunger pumps for medium to large flows. Let flow set the group and pressure set the model, then confirm current models and spares, and you won't go far wrong.

FAQ

Are SEKO and SKEO the same brand?

Yes. The correct spelling is SEKO; SKEO is usually just a typo. Searching for SEKO finds far more information.

What is the largest solenoid SEKO dosing pump?

In the catalog, TEKNA and TEKBA top out at 54 L/h and 20 bar. At 54 L/h the pressure is very low, though, so check the specific model for pressurized injection.

Can a SEKO dosing pump be used in a hazardous area?

The catalog states the hydraulic diaphragm pumps are ATEX certified and NEXA can be installed where explosion protection is required. Mechanical pumps can also be fitted with explosion-proof motors. Confirm the exact rating with the supplier.

How often does a SEKO solenoid pump diaphragm need replacing?

The catalog says the solid PTFE diaphragm lasts more than 5 years. Real life depends on the chemical and running hours, so we suggest an inspection every year.

Which industries use a SEKO metering pump?

Water treatment, wastewater, cooling towers, food and beverage, laundries, pools, chemicals, oil and gas and more. Pick the series to suit the duty.

Want to know which SEKO series fits your duty, or how a domestic option compares? Send the chemical, flow and pressure through our contact page and we will look at it with you.