CHI SIAMO E COSA FACCIAMO

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Pools & Spas - Essential water-treatment solutions for pristine pools and spas

From residential pools and spas to multi-facility leisure centres and water parks, achieving the precise chemical performance that delivers a perfect swimming and bathing experience requires an exceptional watertreatment solution.

A SEKO solution

• Consistently precise dosing via high-accuracy peristaltic, solenoid and motor-driven metering pumps capable of ultra-fine adjustments 
  
• IoT connectivity for unparalleled operational efficiency, with live and historic data on demand courtesy of our dedicated SekoWeb app 
• Analysis and control of key water-quality parameters to help remove and prevent contaminants such as legionella and pathogens 
• Reduced running costs courtesy of premium materials that provide superior chemical compatibility and minimal maintenance requiremen
• System safety with dust-tight IP65-rated enclosures, CE/UL compliance and galvanic electrical insulation 
• Ease of use via automatic proportional dosing, universal programming language and intuitive multi-language controllers 
• Simple installation with products designed for the appropriate level of expertise; from complex multi-pump systems to plug-and-play dosing units

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L-IN LINE PUMPS LD-IN LINE TWIN PUMPS

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Kronos Series Multi-application peristaltic pumps

Kronos is a range of durable and robust peristaltic pumps suited to multiple applications within the cleaning and hygiene and water-treatment industries. Easy to install and requiring minimal maintenance, the whole Kronos range is designed to deliver a “fit and forget” solution that provides convenience and reliability for busy operators. Where hydraulic conditions allow it, the use of a peristaltic rather than solenoid pump allows users to avoid the common difficulties in priming when changing the tank such as possible scaling inside the valves and the rhythmic noise of the working pump, allowing a constant, uniform and non-impulsive dosage of the chemical.

KRONOS 65

The peristaltic Kronos pump with a higher flow rate

Among the Kronos pumps, Kronos 65 offers the highest flow rate, up to 25 l/h at low pressures.

• Flow rate: 25 l/h - 0.1 bar

• Tube: Santoprene

KRONOS 50

Peristaltic dosing pumps for water and industrial applications

Kronos 50 is equipped with a stepper motor that provides infinitely adjustable (0.01 - 100%) and silent dosing. Advanced technology and materials mean the various models can reach flow rates of up to 15 l/h (at 0.1 bar) and can dose at backpressures up to 4 bar with a special HP-San tube.

• Flow rate: up to 15 l/h

• Backpressure: up to 4 bar

• Tube: Santoprene - SekoExtra - SekoMed - SekoFort - HP-SanKronos 20

KRONOS 20

Peristaltic dosing pumps for water and industrial applications

Kronos 20 is a higher-level professional pump suitable for use in medium-duty applications, operating a single function - proportional chemical dosing. Reading either pH or ORP, the pump features fully galvanic electrical insulation.

• Flow rate: 7 l/h - 1.5 bar

• Tube: Santoprene

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Spring PS2 HP - Spring plunger piston dosing pump for high pressure

Spring plunger piston dosing pump for high pressure

• The PS2 HP series of high-pressure piston dosing pumps can adapt to a large number of applications. Like other variants in the Spring pump series, PS2-HP has a spring-return mechanism in a sturdy aluminium housing but is equipped with special pump bodies, expressly recommended for high-pressure applications that allow this range to dose with backpressures up to 100 bar. 
• This model has two stroke rates. Stroke lengths can be set manually with a knob. To achieve the given performance, these pumps need to be actuated by a 3-phase motor, provided with an IP55 protection classification. 
• Spring PS2 HP has been designed for use in applications requiring an economic and practical solution for dosing small amounts of product at high pressure, up to 100 bar: in a boiler, for example.

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SMAG 103 - Electromagnetic flow meter and control unit

SMAG 103 is a professional electromagnetic flow meter and controller that’s ideal formeasuring conductive fluids, wastewater and other liquids across multiple applications. Built with high-grade materials such as Hastelloy C4, carbon or stainless steel, rubber, PTFE and PFA, SMAG 103 withstands challenging conditions including liquids up to 170 °C. With application uses across water treatment, mining and refineries, food, energy generation, wastewater treatment and chemical production, SMAG 103 meets the needs of modern water management systems and represents one of SEKO’s most versatile solutions for high-precision measurement. The ATEX version has been designed with a robust construction, an all-stainless steel design and remote control without a display unit. This makes it an unbeatable flowmeter for any application that requires durability and longevity.

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Pools & Spas - Essential water-treatment solutions for pristine pools and spas

A SEKO solution.

• Consistently precise dosing via high-accuracy peristaltic, solenoid and motor-driven metering pumps capable of ultra-fine adjustments

• IoT connectivity for unparalleled operational efficiency, with live and historic data on demand courtesy of our dedicated SekoWeb app

• Analysis and control of key water-quality parameters to help remove and prevent contaminants such as legionella and pathogens

• Reduced running costs courtesy of premium materials that provide superior chemical compatibility and minimal maintenance requirement

• System safety with dust-tight IP65-rated enclosures, CE/UL compliance and galvanic

electrical insulation

• Ease of use via automatic proportional dosing, universal programming language and intuitive multi-language controllers

• Simple installation with products designed for the appropriate level of expertise; from complex multi-pump systems to plug-and-play dosing units

More info: @e-mail

Tork - A very high level of precision

Mechanical return mechanism available in several sizes

Designed to produce low noise emissions and minimise power consumption, Tork pumps feature manual flow-rate adjustment. Each mechanism comes complete with an internal gearbox, meaning that pumps with different speeds can be connected for greater flexibility in equipment selection. Tork’s high-precision stroke adjustment, to an accuracy of ± 1%, can be both manually or electrically adjusted using SEKO-designed electrical actuators.

PTFE double hydraulic diaphragm heads (TY) the ideal solution for applications demanding operational safety and reliability 

Tork’s safety features include a zero-leakage profile that offers watertight construction for dosing toxic, corrosive and other hazardous liquids. Meanwhile, its double diaphragm protection system immediately signals anomalies without ceasing operation, preventing unplanned downtime. This heavy-duty pump’s diaphragm does not require perforated shields on the process side, allowing liquids containing solid suspensions to be pumped.

A mechanical refilling system maintains a constant hydraulic fluid level, thereby guaranteeing maximum precision and repeatability. It also helps manage the eventual deformation of the diaphragm, thereby increasing its lifespan and reducing operational costs.

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Dosing & Injection Packages Precision chemical dosing systems engineered for every industry

Each SEKO dosing package is designed, assembled, and tested to the highest international standards, featuring precision-engineered components such as calibration pots, safety valves, pulsation dampers, and instrumentation to guarantee accurate and secure chemical handling.

With multiple configurations available, SEKO dosing systems are adaptable to different flow rates, pressures, and chemical compatibilities, allowing customers to select the ideal solution for their operational needs. From single-pump skids to complex dosing arrangements, SEKO technology supports a wide spectrum of applications with proven performance and

long-term dependability. Backed by a global logistics and support network, SEKO combines engineering excellence with worldwide reach to deliver efficient, high-quality dosing solutions that embody our long-standing values of innovation, technology, and future-focused design.

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Probes for hydrogen peroxide - Achieve repeatable results in hydrogen peroxide measurement

Hydrogen Peroxide Probe Monitoring in Wastewater and Anti-Legionella Systems

Hydrogen peroxide (H₂O₂) monitoring plays a critical role in both wastewater treatment processes and anti-legionella disinfection systems. Accurate and continuous measurement ensures process efficiency, regulatory compliance, and operational safety.

1. Monitoring in Wastewater Treatment 

In wastewater applications, hydrogen peroxide is commonly used for: Advanced oxidation processes (AOP) - Odor control - Sulfide and organic load reduction - Post-treatment polishing before discharge A hydrogen peroxide probe, typically based on amperometric or potentiostatic measurement technology, continuously detects the residual H₂O₂ concentration in the effluent stream.

Key objectives of monitoring include: Maintaining optimal dosing control - Preventing chemical overconsumption - Protecting downstream biological processes - Ensuring compliance with discharge limits - The probe is usually installed in a flow-through cell or directly in-line within a bypass system. The measured signal is transmitted to a controller that regulates the dosing pump proportionally, maintaining a stable residual concentration. Continuous monitoring provides real-time feedback, enabling automatic adjustment of the dosing rate based on flow variations and pollutant load.

2. Monitoring in Anti-Legionella Systems

In anti-legionella applications, hydrogen peroxide is used as a disinfectant in domestic hot water systems, cooling towers, hospitals, hotels, and industrial water networks.

The primary objectives are: Preventing Legionella pneumophila proliferation - Maintaining a controlled residual disinfectant concentration - Avoiding underdosing (ineffective disinfection) or overdosing (material corrosion and safety risks) - The hydrogen peroxide probe continuously measures the disinfectant residual in the recirculation line or at critical control points within the system.

The monitoring system typically includes: Closed-cell amperometric sensor - Temperature compensation - Flow control for measurement stability - Integrated controller with alarm thresholds

Maintaining a stable H₂O₂ concentration ensures: Continuous microbiological protection - Reduced biofilm formation - Optimized chemical consumption - Regulatory compliance in healthcare and public facilities 

Conclusion

Reliable hydrogen peroxide monitoring is not simply a measurement task, but a fundamental control strategy for ensuring treatment effectiveness, operational safety, and regulatory compliance.

Proper probe selection, correct installation, and routine maintenance are critical to achieving stable and efficient system performance.

Careful monitoring and precise dosing control are key factors in guaranteeing long-term system reliability and optimized chemical management.

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