SEKO Tekna APG600/APG803 AKS603 – Automatic High-Efficiency Electromagnetic Diaphragm Metering Dosing Pump for Water Treatment Systems

Seko Tekna EVO AKS Series – Analog Dosing Pump

The Seko Tekna EVO AKS Series is a constant-flow analog dosing pump with a manually adjustable flow rate via a front-panel knob. It offers two frequency ranges:

• 0–20% of max flow rate
• 0–100% of max flow rate

With just five sizes, the series covers a wide performance range:

• Flow rate: 0.4 to 54 L/h
• Back pressure: 0.1 to 20 bar

Power Supply Options

• 100–240 V ac, 50/60 Hz (universal input)
• Model 812 also supports 12 V dc

Materials & Compatibility

• Standard pump head: PVDF (high chemical resistance)
• Optional: PVC head (upon request)

Features & Accessories

• Manual priming for easy startup
• Standard installation kit includes:
• PVDF foot filter & injection valve
• PVC suction tube
• PE delivery tube
• PVC installation kit available (upon request)

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Why Metering Dosing Pumps Are Critical in Water Treatment?

Water treatment plants rely on precise chemical dosing to maintain efficiency. A metering dosing pump, like the SEKO Tekna APG600/APG803 AKS603, ensures accuracy, reducing waste and operational costs.

Interesting fact: The global water treatment chemicals market will reach $72.5 billion by 2030 (Grand View Research, 2023). Without proper dosing, plants risk over-treatment (costly) or under-treatment (non-compliant).

How Does an Electromagnetic Diaphragm Pump Work?

Unlike peristaltic pumps, electromagnetic diaphragm metering pumps use a solenoid-driven mechanism for pulse-free, consistent flow. The SEKO Tekna series offers:
✔ Automatic adjustment (0-100% flow),High chemical resistance (PVDF/PVC options),Low energy consumption (up to 30% less than traditional pumps)

LSI Keywords: chemical dosing pump, precision dosing, water treatment pump, automated metering, diaphragm pump technology

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SEKO Tekna Metering Dosing Pumps Technical Specifications

Pump Model	Pressure (bar)	Flow Rate (L/h)	Frequency Max (stroke/min)	Stroke Capacity (cc/stroke)	Connection (mm) Suction	Connection (mm)Discharge	Power supply	Consumption [W] Min*	Consumption [W] Max
AKS 600 N	20	2.5	120	0.35	4/6	4/7	100-240 V ac	8	15
	18	3		0.42
	14	4.2		0.58
	8	7		0.97
AKS 603 N	12	4	160	0.42	4/6	4/6	100-240 V ac	15	18
	10	5		0.52
	8	6		0.63
	2	8		0.83
AKS 812 L	10	3	200	0.25	4/6	4/6	12 V dc	6.5	6.5
	8	4		0.33
	5	5		0.42
AKL 800 N	16	7	300	0.39	4/6	4/6	100-240 V ac	15	26
	10	10		0.56
	5	15		0.83
	1	18		1.00
AKL 803 N	5	20	300	1.11	8/12	8/12	100-240 V ac	15	25
	4	25		1.39
	2	38		2.11
	0.1	54		3.00

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Step-by-Step Installation Guide for SEKO Tekna Metering Pumps

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Future Trends in Metering Pump Technology

Smart IoT-enabled dosing pumps are rising. SEKO’s 2025 models may include:

• Real-time flow analytics
• Auto-adjustment via pH sensors
• Predictive maintenance alerts

LSI Keywords: smart dosing system, industrial chemical pump, automated water treatment

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Checklist for Optimal Metering Dosing Pump Performance

✅ Verify chemical compatibility,Calibrate quarterly,Inspect diaphragms every 6 months,Log flow rate deviations,Train staff on emergency stops

Metering Pump vs Dosing Pump: Understanding the Key Differences

Many buyers ask about metering pump vs dosing pump differences. The terms are often used together. In practice, they describe the same category of equipment. Both deliver precise, controlled volumes of liquid. Both use a reciprocating mechanism to move fluid. The key difference is context. “Metering” emphasizes accuracy of flow rate. “Dosing” emphasizes delivery of a set chemical amount.

Dosing and metering pumps serve the same core purpose. They inject chemicals into water at exact rates. Chlorine dosing prevents bacterial growth. Antiscalant dosing protects RO membranes. pH correction chemicals keep water within safe limits. Therefore, choosing the right metering and dosing pump depends on your chemical type and flow rate needs.

Electromagnetic diaphragm models like the SEKO Tekna series suit most water treatment tasks. They offer pulse-free flow and high chemical resistance. They also consume less energy than older pump designs. Furthermore, dosing metering pumps with analog controls are easier to operate in field conditions. No complex programming is needed. The front-panel knob sets the flow rate directly. For chemical storage, a compatible dosing tank keeps chemicals ready for injection. Moreover, always monitor system pressure at the pump outlet. A pressure gauge confirms the pump is delivering against correct back pressure. Incorrect back pressure causes under-dosing or pump damage.

Dosing and Metering Pumps: Best Applications in Water Treatment Systems

Dosing and metering pumps are used across many water treatment stages. Chlorination is the most common application. A metering dosing pump injects sodium hypochlorite at a controlled rate. This disinfects drinking water safely. Over-dosing wastes chemical and affects taste. Under-dosing leaves bacteria untreated. Therefore, accurate dosing is critical at every stage.

Antiscalant dosing is another key use. RO systems rely on antiscalant to prevent membrane scaling. The metering dosing pumps inject the chemical before the feed water reaches the membranes. This extends membrane life. It also maintains consistent permeate flow rates. Moreover, pH adjustment chemicals are dosed in the same way. Acid or alkali is injected to keep water within the target pH range.

Industrial systems also use dosing metering pumps for coagulant and flocculant injection. These chemicals cause suspended particles to clump together. This makes downstream filtration more effective. The pump delivers the exact dose needed for the incoming flow rate. This reduces chemical waste and improves treatment quality. For complete industrial water treatment, a full water filtration system works alongside these pumps. Furthermore, large industrial plants pair metering and dosing pumps with an electric mixer agitator in the chemical tank. This keeps concentrated chemicals properly mixed before injection. Even distribution ensures the pump draws consistent chemical strength at every stroke.