Solutions for Water & Industry

Summary

General Overview

This document provides an overview of SEKO's solutions for water and industry, encompassing a range of dosing pumps, controllers, and sensors. SEKO operates globally with ISO certificated production sites in Europe, the Americas, and Asia. Key features across their product lines include a 5-year guarantee on diaphragms for certain pumps and ATEX certificated pump options.

SEKO pumps are designed for operational efficiency, offering features such as adjustable stroke length, single liquid end options, stabilized power supply, multiple model outputs in one pump footprint, and options for base or wall mounting.

Solenoid Driven Dosing Pumps

SEKO's solenoid driven dosing pumps offer versatile solutions for water treatment applications, available in both analog and digital versions. Digital versions feature powerful microprocessors for dosing accuracy and mechanical stroke setting. These pumps are designed for low maintenance with virtually wear-free drive and no lubricated bearings or shafts. They feature multilingual menus, IP65 classification, and low level alarms. Diaphragms are made of pure solid PTFE, tested to provide a "Five Year" working life.

Kompact AML

The Kompact AML is a microprocessor-based, wall-mounted solenoid driven dosing pump designed for common daily needs. It offers both constant and proportional flow rates, managed via a manually adjustable control dial.

• Dosing Mode: Constant flow rate, manually adjustable from 0 to 100% of max flow rate. Two flow rate ranges: 0 - 100% or 0 - 20%.
• Pump Head: Manual priming valve, equipped with low level alarm.
• Diaphragm: Long life diaphragm tested for "Five Year" working life, made of pure solid PTFE.

Technical Data (Kompact AML Model 200)

• Flow rate:
  • 1.3 gph @ 120 psi
  • 0.8 gph @ 145 psi
  • 0.52 gph @ 160 psi
• Stroke capacity: 0.31 cc/stroke
• Frequency max: 160 stroke/min
• Ø IN/OUT Conn.: 1/4 “
• Power supply: 100 - 240 Vac 50/60 Hz
• Consumption: 14 W
• Protection degree: NEMA 4X rated

Technical data for pump head materials:

• Body pump: PVDF-T
• Balls: Ceramic
• Seat valve: FPM - EPDM
• Diaphragm: FULL PTFE
• Enclosure: PP

Tekna Series

The Tekna Series comprises innovative wall-mounted solenoid driven dosing pumps, available in analog and digital versions. These pumps offer outstanding precision and reliability, covering flow rates from 1.1 to 29 gph with output pressures up to 230 psi. A single style configuration simplifies installation planning.

• Diaphragm: Long life diaphragm tested for "Five Year" working life, made of pure solid PTFE.
• Display: Intelligent Display shows only relevant parameters for selected function.
• Pump Head: Standard PVDF pump head and ceramic ball valves. PVDF is suitable for almost all chemicals. Ceramic balls ensure chemical compatibility and pump reliability.
• Power Supply: Automatic Switching 100 - 240 Vac 50/60 Hz.
• Materials used in the pump head:
  • BODY: PVDF
  • BALL VALVES: PVDF
  • BALLS: CERAMIC
  • DIAPHRAGM: PTFE
• Features:
  • Level control input
  • Manual priming valve
  • Electrical connections configured with "quick-connectors"
  • Case made in PP reinforced with fiber glass
  • NEMA 4X rated
  • Complete standard installation kit includes: PVDF foot filter and injection valve, PVC suction tube, PE delivery tube.

Technical Data (Tekna Series)

Dimensions (inch):

• Models 603 – 800: A (Height) 9.09”, B (Width) 5.70”, C (Depth) 4.68”, D (Max Height) 10.11”
• Model 803: A (Height) 9.09”, B (Width) 5.86”, C (Depth) 4.68”, D (Max Height) 10.11”

Tekna Product Line Variations:

• Tekna AKL (Analog dosing pump with constant dosage):
  • Manual adjustment by control dial.
  • Two frequency ranges (0 - 20% or 0 - 100%).
  • Power-ON LED indicator and level control input.
• Tekna APG (Analog dosing pump with proportional dosage):
  • Constant flow rate (manual adjustment) or proportional flow rate (external analog 4 - 20 mA or digital pulse signal).
  • Control dial (percentage and "n" value in multiplication mode).
  • 6-position adjustable switch for division, multiplication, proportional 4 - 20 mA, or constant functionality.
  • “Pacing” function adjustable by dip switch.
• Tekna TPG (Digital dosing pump with proportional dosage):
  • Constant flow rate (manual adjustment) or proportional flow rate (external analog 4 - 20 mA or digital pulse signal).
  • Timer function, ppm dosing, statistics, password, and On/Off input (remote switch).
• Tekna TPR (Digital dosing pump with proportional dosage):
  • Digital dosing pump with built-in pH/Redox control meter.
  • Digital interface for constant or proportional dosing based on measured pH or Rx value.
  • PT100 probe input for thermal compensation.
  • Repetition alarm relay.
  • Input On-Off for remote control.
  • 4 - 20 mA output for measure transmission.
• Tekna TCK (Digital dosing pump with timed dosage):
  • Constant flow rate (manual adjustment) or timer control.
  • Programmable timed relay.

Motor Driven Dosing Pumps

SEKO offers an extensive range of motor driven dosing pumps with capacities up to 340 gph. These pumps provide high accuracy and flexibility for demanding water treatment applications. Membrane versions are suitable for problematic liquids, while piston variants offer superior performance.

Spring Series

The Spring series is SEKO's entry-level offering in motor driven pumps, designed to be robust, reliable, and capable of unsupervised operation. They feature a spring return mechanism in an aluminium housing, offering flexibility in stroke length and motor speed.

• Capacity range: Up to 340 gph, up to 116 psi.
• Liquid End: SS 316L and PVC.
• Diaphragms: Mechanically actuated diaphragms for low pressure applications, providing a zero-leakage solution. Made of PTFE.
• Piston: Available in SS316 or ceramic.
• Actuator: Every pump can be equipped with an electric actuator that accepts a 4 - 20 mA signal.

Spring MS1 (Mechanical diaphragm dosing pumps)

The MS1 series offers multiple combinations of pump head and motor power, achieving flow rates between 1.45 and 170 gph with pressures up to 116 psi. Each model is adjustable from 0 - 100% of the total flow rate, either manually or automatically via an AKTUA actuator (4 - 20 mA signal). Pumps can be supplied with single or three-phase electric motors with IP55 protection.

Technical Data (Spring MS1)

Spring PS2 (Plunger piston dosing pumps)

The PS2 series piston dosing pumps offer flow rates between 10.5 and 340 gph with pressures up to 80 psi. They feature a spring-loaded mechanism in an aluminium housing and are adjustable from 0 - 100% of the total flow rate (manually or automatically via an AKTUA actuator with 4 - 20 mA signal).

Technical Data (Spring PS2)

Controllers & Sensors

SEKO's controllers and sensors are built for precision and designed for both internal and external environments, offering easy integration into various process environments. They deliver real-time measured values and can be connected via bypass, immersion, or installed fittings.

Applications: Waste Water, Drinking Water, Pure Water, Cooling Towers, Boiler, Reverse Osmosis, Crate Wash, Galvanic Process, CIP, Irrigation, Swimming Pool, Dairy.

Kontrol 100 (Single-parameter controller)

Advanced controllers for simpler high-end applications, featuring independent proportional control output and probe quality checking.

• Display: Graphic display (128 x 128 pixel resolution, monochrome) with graphic icons.
• Enclosure: Wall mounting ABS plastic material IP65 (144x144); panel mounting IP54 (96x96).
• Power Supply: Universal 100 - 240 Vac 50/60 Hz.
• Backlight: Multi-Color Backlight Function with four different colors.

Measurement range:

• pH: 0 - 14 pH
• ORP: ±2500 mV
• Conductivity: 0.054 - 20 /200 /2000 /20000 /200000 μS
• Dissolved Oxygen: 0 - 20 ppm or mg/l • 0-200% SAT
• Flow Rate: 0 - 99999 l/sec
• Chlorine and Chlorine Dioxide: 0 - 0.5 / 1/ 2/ 5/ 10/ 20/ 200 ppm
• Hydrogen Peroxide: 0 - 500/ 1000/ 2000/ 10000/ 100000 ppm
• Ozone (O₃): 0 - 0.5/ 2/ 5/ 10 ppm
• Peracetic Acid: 0 - 500/ 2000/ 10000/ 20000 ppm
• Turbidity: 0 - 1/ 10/ 100 NTU/FTU
• Temperature: with PT100/PT1000 32 - 212 °F (0 - 100°C)

Configuration Outputs:

• All outputs (Relay, SSR, mA) are configurable with primary and secondary measure.
• Current outputs: 4 - 20mA Galvanic isolation. Two independent programmable Output Measures with Proportional routine regulation.
• Relay Outputs: Two independent relays, two set points, alarm remote and back washing probe setting by software. On/OFF, Timed routine function setting.
• Solid State Relay (SSR): Two Frequency output signal, two set points with Proportional routine regulation.

Kontrol 500/502 (Single and dual-parameter controller)

Advanced controllers for high-end applications, featuring independent proportional PID-enabled control outputs, RS 485 serial port with MODBUS protocol, and optional USB port. They include probe quality checking and full data logging capability.

• Display: Graphic display (128 x 64 pixel resolution, monochrome) with graphic icons.
• Enclosure: Wall mounting ABS plastic material IP65 (144x144); panel mounting IP54 (96x96).
• Power Supply: Universal 100 - 240 Vac 50/60 Hz.

Measurement range:

• pH: 0 - 14 pH
• ORP: ±1500 mV
• Conductivity: 0 - 20/ 200/ 2000/ 20000/ 200000 μS
• Dissolved Oxygen: 0 - 20 ppm or mg/l • 0 - 200% SAT
• Inductive Conduct.: 0 - 1000/ 10000/ 100000/ 999999 μS
• Chlorine and Chlorine Dioxide: 0 - 0.5 / 1/ 2/ 5/ 10/ 20/ 200 ppm
• Hydrogen Peroxide: 0 - 500/ 1000/ 2000/ 10000/ 100000 ppm
• Ozone (O₃): 0 - 0.5/ 2/ 5/ 10 ppm
• Peracetic Acid: 0 - 500/ 2000/ 10000/ 20000 ppm
• Turbidity: 0 - 1/ 10/ 100 NTU/FTU
• Suspended Solids Turbidity: 0 - 4/ 40/ 400/ 4000 NTU/FTU • 0 - 30 gr/l
• Temperature: with PT100/PT1000 32 - 212 °F (0 - 100°C)

Data logging:

• Internal Flash Memory with records interval from 1 to 99 min. (near to 16000 records).
• Visualization key for stored data in tabular and graphic form. Type: Circular (F.I.F.O.) or Filling.
• RS485 Serial port: For set-up and real-time data acquisition or stored data download (MODBUS RTU protocol).
• USB port: Download measuring data on removable memory Usb Pen Drive (upon request).

Measure Input:

• High measuring resolution with probe quality control.
• Modular measuring system.
• Chlorine measure in sea water application.

Current outputs:

• 4 - 20mA Galvanic isolation. Two independent programmable Output Measures with PID routine regulation.

Relay Outputs:

• Four independent relays, two set points, one alarm remote output, one backwashing probe output. On/OFF, Timed routine function setting.

Sensor and Probes

SEKO provides a wide range of sensors for various measuring tasks, from simpler water treatment to industrial process waters with stringent requirements for temperature, pressure, contamination tolerance, and chemical resistance.

• pH Sensors:
  • Measurement based on pH sensitive glass electrode, reference electrode, and temperature element.
  • For applications up to 266 °F and 232 psi.
  • Virtually maintenance-free, highly accurate with pressurizable liquid electrolyte.
  • Available with open hole, pellon, or ceramic diaphragms.
• ORP Sensors:
  • Potentiometric measurement of oxidizing/reducing power using a noble metal (Platinum or Gold) electrode.
  • Used to control disinfection with chlorine and chlorine dioxide.
  • For applications up to 266 °F and 232 psi.
  • Virtually maintenance-free, highly accurate with pressurizable liquid electrolyte.
  • Available with open hole, pellon, or ceramic diaphragms.
• EC (Electrical Conductivity) Sensors:
  • Conductive principle: alternating current applied between sensor poles, current measured depends on ion concentration and solution geometry.
  • For ultrapure water to high concentrated process media.
  • Cost-efficient for water/wastewater applications, maintenance-free.
• IC (Inductive Conductivity) Sensors:
  • Inductive principle: field coil stimulated by sinusoidal voltage, current field in fluid generates voltage in receiver coil.
  • For ultrapure water to high concentrated process media.
  • Cost-efficient for water/wastewater applications, maintenance-free.
• OX (Dissolved Oxygen) Sensors:
  • Optical principle: diode emits blue light towards a fluorescent substrate, which emits red light (luminescence) related to oxygen concentration.
  • Integrated temperature probe.
  • Innovative method for accurate measurements over time, eliminating system calibration.
  • Maintenance required only every 2 years.
  • Suitable for applications with almost stationary measuring liquid.
• CL (Chlorine and Disinfectants) Sensors:
  • Standard potentiostatic and amperometric probe design: two electrodes measure current change from chemical reduction of hypochlorous acid.
  • Sensor contains platinum and copper electrodes; galvanic potential develops with sample water as electrolyte.
  • Current increases proportionally to free chlorine content under stable pH and flow conditions.
  • Different membranes available for various chlorine ions.
  • Achieves accurate reading in 30 seconds.
  • Reduced dependence on flow, substances, and film-forming media.
  • Wide measurement range up to 200 ppm.
  • Measures Chlorine, Peracetic acid, Ozone, Bromine, Peroxide.
• TB (Turbidity and Suspended Solids) Sensors:
  • Determines high and very high concentrations of suspended solids up to 150 g/L.
  • Reliable measurement via infrared optical measurement at 880 nm.
  • Dual pulsed light beam system compensates for optical component drift.
  • Digitized signals reduce electrical interference.
  • Measurement performed using a 90° scattered light method compliant with ISO 7027 / EN 27027.
  • Medium in direct contact with sensors, virtually independent from humidity and condensate water.
  • No need to replace silica gel.
• FW (Flow) Sensors:
  • Magmeter: Based on Faraday’s Law, voltage induced is proportional to fluid velocity. Low cost solution with high flow system accuracy, no pressure drop, reduced dependence on flow/substances/film-forming media. No moving parts for conductive and homogeneous dirty media.
  • Paddle wheel sensor: Freely rotating wheel with magnets perpendicular to flow. Magnets spinning past a Hall sensor generate a frequency and voltage signal proportional to flow rate.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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