SEKO Dosing Pump Supplier in Bangladesh
Italian SEKO solenoid and motor-driven diaphragm metering pumps for precise, repeatable chemical dosing in ETP, WTP and STP plants, supplied with installation and after-sales support by Techno Bangla Creation.
What Is a SEKO Dosing Pump?
A SEKO dosing pump is a positive-displacement metering pump, designed and built in Italy, that injects a controlled, repeatable volume of liquid chemical into a process stream. Its job is accuracy rather than volume: industry sources report typical dosing accuracy of roughly ±1 to 3% of the set rate.
SEKO's range for this duty covers solenoid-driven and motor-driven diaphragm pumps, which use a flexing diaphragm and suction/discharge check valves to meter chemical. This differs from a peristaltic (hose) pump, which squeezes a flexible tube with rollers and has no valves to clog.
- Solenoid and motor-driven diaphragm designs covering 0 to 1200 L/h
- Wetted parts in PVC, PP, PVDF, PTFE, SS-304 or SS-316 to match the chemical
- Suited to ETP, WTP, STP, boiler and cooling tower dosing
- Installation and after-sales support in Bangladesh
SEKO Dosing Pump Specifications
- Solenoid-Driven Type
- Capacity 0 ~ 60 L/h · Max pressure 2.0 MPa (about 20 bar)
- Motor-Driven Diaphragm Type
- Capacity 5.5 ~ 1200 L/h · Max pressure 1.0 MPa (about 10 bar)
- Stroke Length
- 2 mm, 4 mm or 6 mm (motor-driven diaphragm type)
- Motor
- 0.18 ~ 0.55 kW, IP55 protection
- Diaphragm Diameter
- 64 ~ 165 mm (motor-driven diaphragm type)
- Wetted Parts
- PVC, PP, PVDF, PTFE, SS-304 or SS-316
- Application
- ETP, WTP, STP, Boiler Water, Cooling Tower, Chemical, Textile, Pharmaceutical, Food & Beverage
- Brand
- SEKO
- Origin
- Italy
Exact capacity, pressure, stroke length and wetted-parts material depend on the model and pump head you select. Send us the chemical, its concentration and your required dosing rate, and our engineers will confirm the right SEKO model.
How a SEKO Dosing Pump Works
- Suction StrokeThe diaphragm retracts, opening the inlet check valve and drawing a measured volume of chemical into the pump head.
- Diaphragm ActuationA solenoid coil, or a motor-driven cam on larger models, flexes the diaphragm to change the chamber volume.
- Discharge StrokeThe diaphragm moves forward, closing the inlet valve and opening the outlet valve to push chemical out.
- Rate Set by Stroke and SpeedAdjusting stroke length and stroke frequency changes the dosed volume per hour.
- Chemical Reaches the ProcessThe discharge line, often with an injection quill or back-pressure valve, carries the chemical into the tank or pipe, sometimes paired with an online analyzer for automatic pH or chlorine control.
Key Benefits
Over- or under-dosing wastes chemical or risks non-compliant discharge, so the pump you choose matters.
- High dosing accuracy, reported around ±1 to 2% of the set rate on motor-driven diaphragm designs
- Wide choice of wetted-parts material (PVC, PP, PVDF, PTFE, SS-304, SS-316) to match corrosive or hot chemicals
- Capacity range from 0 to 1200 L/h covers small dosing points up to large plant chemical feed
- Adjustable stroke length and speed give turndown without oversizing the pump
- Positive-displacement design suited to continuous, unattended dosing
- Local engineering, installation and after-sales support from Techno Bangla
Which Dosing Pump Fits Your Chemical?
Choose a SEKO Diaphragm/Solenoid Pump When
- The chemical is clear or only lightly corrosive
- Discharge pressure is relatively high, up to about 20 bar
- You need a wide choice of wetted-parts material for chemical compatibility
- Continuous, unattended dosing is required
- Fine control of dosing rate through stroke length and speed matters
Choose a Peristaltic Pump When
- The chemical contains particulates or is a slurry
- You are dosing an off-gassing chemical such as sodium hypochlorite
- Operating pressure is low and simple tube maintenance is preferred
- Chemical containment matters, since only the tube touches the chemical
- Budget is the main constraint. Ask about our EMEC dosing pump range for a lower-cost option too.
Where SEKO Dosing Pumps Are Used
Any process that needs accurate, repeatable chemical dosing.
- ETP Chemical Dosing
- WTP Chemical Dosing
- Boiler Water Treatment
- Cooling Tower Water Treatment
- Textile & Dyeing
- Pharmaceutical
- Food & Beverage
How to Choose the Right Dosing Pump
Share these details with our engineers and we will recommend a suitable SEKO model and pump head.
- Chemical and concentration. Confirm the wetted-parts material (PVC, PP, PVDF, PTFE, SS-304 or SS-316) against the chemical's compatibility before ordering.
- Required dosing rate and turndown. State your minimum and maximum dose so stroke length and speed can be set inside the pump's working range.
- Discharge pressure and back-pressure valve. Confirm the pressure at the injection point. Industry guidance recommends a relief or back-pressure valve set at least 10% above the maximum operating pressure.
- Off-gassing chemicals. Sodium hypochlorite and similar chemicals are more prone to vapour lock in a diaphragm pump, so flag this early so the right pump head is selected.
- Bangladesh discharge standard. Composite textile ETPs commonly target a discharge pH of about 6.5 to 9, so accurate acid or alkali dosing is central to staying within that range.
Frequently Asked Questions
What does SEKO make, and what does Techno Bangla supply?
SEKO is an Italian maker of dosing and water-treatment equipment. Its dosing pumps include Kompact and Tekna solenoid pumps, Spring MS1 motor-driven pumps and peristaltic and hydraulic pumps. We supply SEKO models in Bangladesh for ETP, WTP and STP, and confirm each model on a datasheet.
Which SEKO series should I choose: Kompact, Tekna, MS1 or peristaltic?
Kompact suits very small doses, up to about 9 L/h. Tekna covers roughly 2.5 to 110 L/h with higher pressure and digital control. MS1 handles 5.5 to 1,200 L/h for continuous plant dosing. Peristaltic suits gassing or solids-bearing liquids at low pressure.
What do SEKO model codes like DMS200, AKS803, TPG800 and MS1B108A mean?
In Bangladesh listings, DMS200 is a small solenoid pump of about 2–9 L/h. AKS and TPG are Tekna-family solenoid pumps, with TPG800 shown as a digital version. MS1B and MS1C are motor-driven pumps. Capacity changes with the code, so send us the code and we confirm the datasheet.
How much does a SEKO dosing pump cost in Bangladesh?
Listings run from about ৳17,500 for small DMS200 or AKS600 pumps to about ৳60,000–65,000 for MS1 or digital TPG800 models, and about ৳1,25,000 for larger motor-driven pumps. Listing prices vary, so send your chemical, dose and pressure for an exact quotation.
Why does the datasheet show lower pressure at higher flow?
A pump’s stroke volume is fixed, while higher flow needs a larger or faster setting that its drive can push against only a lower pressure. Maximum pressure is listed at the lowest flow, so read the performance table for your actual duty point.
Can I control a SEKO pump automatically with a 4–20 mA signal?
Tekna pumps support proportional dosing from analogue 4–20 mA and digital inputs. MS1 pumps can take a 4–20 mA signal through SEKO’s AKTUA kit, per catalogue copies. Confirm the control option on the exact model before ordering.
What is the difference between SEKO and EMEC dosing pumps?
Both are Italian. SEKO’s range spans solenoid, motor-driven, peristaltic and hydraulic pumps, while our EMEC range centres on K, T and V solenoid pumps and the PRIUS motor-driven series. Choose by dose rate, pressure, chemical and control method, and we advise on the better fit.
What stroke and speed settings does a SEKO MS1 offer?
Catalogue copies list stroke lengths of 2, 4 or 6 mm and three stroke rates (58, 78 and 116 per minute) on MS1 pumps. Together with the diaphragm size, these set flow. Motor and phase options vary by model, so confirm them on the datasheet.
How can I get a quotation for a SEKO dosing pump?
Send your chemical, concentration, required dosing rate and discharge pressure to our engineers by phone or email. We reply with a free quotation for your ETP, WTP, STP or water treatment equipment.
