LEWA ecodos diaphragm metering pump

LEWA ecodos®
Versatile and Efficient Low-Pressure Mechanical Diaphragm Metering Pump

LEWA ecodos is a reliable and efficient diaphragm metering pump featuring mechanical diaphragm actuation, offering a multitude of options. It's suitable for a wide range of metering and pumping tasks within the low-pressure range. With its multiplexing function, ecodos enables additional applications such as low-pulsation pumping, recipe metering, and mixing tasks.

Operating at a flow rate of 16 to 1460 l/h per pump head and a maximum discharge pressure of 20 bar, ecodos ensures optimal performance.

LEWA ecodos®

The optimum solution in the low-pressure range.

LEWA specializes in low-pressure mechanical diaphragm metering pumps, safeguarding against fluid contamination with the oil-free ecodos series.

This makes them perfect for sensitive applications like pharmaceuticals, where purity is paramount. While high-pressure pumps like LEWA's ecoflow are an option, the ecodos series offers a more efficient solution tailored for low-pressure metering tasks. Customers seeking reliable and clean metering technology find the mechanical actuation of LEWA diaphragm pumps ideal for their needs.

LEWA ecodos diaphragm metering pump

Discover the Benefits of LEWA ecodos®: Your Low-Pressure Mechanical Diaphragm Metering Pump Solution

The LEWA ecodos stands as a mechanically actuated diaphragm metering pump, featuring a monitored, 4-layer sandwich diaphragm designed for low pressures. It offers numerous advantages over comparable pumps.

Pumps with high metering accuracy

Exact metering setting

Even in low-pressure conditions, the ecodos diaphragm pump has a precise flow rate adjustment of ± 1%. You can achieve an exact, extensive adjustment range of up to 1:50 thanks to the option of adjusting the pump using the stroke length and/or rotational speed.

Different pump types with specific equipment

Various sizes and equipment

Adjust the LEWA ecodos precisely to meet your requirements: With 6 output ratings, the material variants 316/316L, PVC, PVDF and PTFE and adapted accessories, the diaphragm metering pump is suitable for virtually any pumping task in the low-pressure range.

Integrated control rule systems

Integration into open and closed-loop control systems

Simply integrate the LEWA ecodos into the existing production system: Control the output on the motor side using a frequency converter or with an automatic stroke adjustment. We are happy to advise you to ensure that your pumps run at maximum efficiency.

Hermetically sealed

Diaphragm pumps work without dynamic seals in the process fluid area. This forms a hermetically sealed working area. No emissions escape to the outside, and contamination of the fluid is impossible.

High level of production reliability

Even if a diaphragm is damaged, continued operation is possible. Therefore, you have sufficient response time for maintenance purposes. This results in a high level of production reliability.

PTFE sandwich diaphragm

The 4-layer PTFE sandwich diaphragm is not only extremely stable and durable. It is also monitored continuously during operation using the patented DPS diaphragm monitoring system.

Discover Features for Low-Pressure Mechanical Diaphragm Metering Pumps: LEWA ecodos®

Multiplex capability

Single drive units with vertically installed motor are space-saving. Alternatively, multiple drive units with identical or different output can be combined for pulsation reduction or recipe metering.

Explosion-proof design

We supply pumps, equipment and systems on request in explosion-proof design for operation up to EX zone 1 . Thus, we guarantee maximum security.

Integration into process control systems

The signal acquisition of process control systems is achieved analogously or digitally. Flow rate is adjusted via electric or pneumatic stroke adjustment, alternatively by motor drive (FU).

Exactly customized accessories

We pay attention to all the details: All electrical and electronic accessories for your diaphragm metering pump are perfectly tailored to our individual product - from the contact transmitter to the frequency inverter.

Customized valves

LEWA uses numerous special types of valves such as specially hardened valves for liquified gases or valves with minimal dead space for the food and pharmaceutical production.

Diverse connection geometries

Our pumps are equipped with all common connection geometries such as DIN standard, BASF's high-pressure standard, American ANSI, JIS, or your individual requirements. Customized configurations are possible.

Sanitary & hygienic design

LEWA pumps and systems in sanitary & hygienic design are available for applications that require extremely high purity, such as food production and the pharmaceutical industry.

Complete documentation

In the process of documentation, we consider your requirements and provide inspection records, print samples, diagrams of output characteristics and registration papers on request.

Control and regulation units

With functionally tested controlling and regulating units for frequently occurring standard tasks of diaphragm metering pumps - such as batch metering - your process becomes faster and easier.

The LEWA ecodos diaphragm metering pump is offered in multiple sizes tailored to different applications, delivering flow rates ranging from 16 to 1460 l/h

The LEWA ecodos diaphragm metering pump is available in various sizes, depending on the application. This pump implements flow rates of 16 to 1460 l/h.

Pump typeMax. flowrate
at 50 Hz [l/h]

Permissible pressure
for stainless steel [bar]
Permissible pressure
for plastics [bar]
Permissible temperature [°C]

Installation dimensions

Save space and weight through multiplex arrangement of pumps. Meter multiple liquids at the same time with various pump heads.


TypeL [mm]W [mm]ΔW [mm]H [mm]

1) Vertical motor installation

2) Horizontal motor installation

LEWA ecodos diaphragm metering pump dimensions


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Pump, systems and skids for the Petrochemical industry
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Robust metering solutions for the use in the Chemical industry
Chemicals  industry

Chemical Pumps and Metering Packages for the Chemical Industry

When critical, environmentally hazardous, toxic, or flammable fluids and suspensions need to be reliably conveyed or metered in high-pressure processes, there is no alternative to hermetically sealed metering pumps, process diaphragm pumps, and metering systems from LEWA. Hermetically sealed LEWA pumps with pressures up to 1200 bar are the first choice for the production of chemical intermediate and end products. Contact our experts and let us advise you about your individual chemical pump or system solution!

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Metering and dosing additives in the plastics industry
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Pumps and Systems for the Plastics Industry

We offer you special expertise for all compounding processes in the plastics processing industry (addition of waxes, flame retardants, and lubricants). Contact our experts! We're happy to give you advice about metering and pumping solutions for the plastics industry such as in polyethylene processing.

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Systems and pumps for the Cleaning and Detergents industry
Cleaning and detergents industry

Pumps and Systems for the Manufacture of Detergents and Cleaners

LEWA offers continually operating, formula-controlled systems for the manufacture of household and industrial cleaners in all commercially available surfactant concentrations – from raw product to end product. Contact our experts and let us advise you – we will work with you to configure pumps and systems for the manufacture of detergents and for the production of other cleaners.

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Pumps specially designed for the Cosmetics Industry
Cosmetics and personal care industry

Pumps and Systems for the Production of Personal Care Products

Processes with strict quality and hygiene requirements, such as GMP or the need to avoid preservatives, require the right equipment. We support you in the selection and the design of hygienic components and systems for producing personal care products. Contact our experts and let us advise you – we will work with you to develop customized metering solutions for your process, such as for manufacturing personal care products.

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LEWA pumps and systems meet the requirements of the Pharmaceuticals industry
Pharma and Biotech Industry

Pumps and Systems for the Pharmaceuticals, Life Sciences and Biotechnology Industries

As the leading manufacturer of pumps and pump systems for the pharmaceutical, life sciences, and biotechnology industries, LEWA supports you during the development of complete solutions, which meet your process requirements exactly. Special expertise is required in the production of pharmaceuticals in order to ensure that legal requirements are met. Reliability when it comes to production, documentation, and validation are our top priorities.

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Metering of sensible fluids in the food and beverage industry with LEWA pumps and systems
Food an beverages industry

Pumps and Systems for the Food and Beverage Industry

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For energy utilities LEWA provides customer specific pumping solutions
Energy industry

Metering Packages and Pumps for Power Plants and Power Suppliers

LEWA supports power plant operators and power suppliers with pumps and systems for conveying, metering, and mixing different fluids. We not only provide power plants with our products, but also develop solutions for wastewater treatment plants, gas bottlers, biogas producers, regional power suppliers, and hydrogen producers.

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LEWA solutions are found also in other industries, for example in the Varnish- and Lacquer industry
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Pumps and Metering Systems for Other Industries

LEWA offers customized solutions and references for almost all industries in which processes require exact metering or the reliable conveyance of fluids. As specialists in fluid handling, we of course also have experience in areas outside of our key markets.

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Mining industry
Mining industry

Pumping solutions for mining and metal and mineral processing

From the explosives manufacturing, ore extraction and metal and mineral recovery to effluents treatment and final product finishing, our solutions have helped our clients to save energy and consumables while keeping high operational safety and low cost of ownership.

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Amine treatment

Amine treatment

At LEWA, you receive pumps and systems for amine treatment in power plants. Ask our experts for more information.

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Production of fabric softener

Fabric softeners

At LEWA, find out about plants and systems for fabric softener production. Our experts are happy to talk to you about your custom solution!

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Caustic dilution

Caustic soda production

At LEWA, find out about custom plants for producing and diluting different bases like caustic soda. Ask our experts for more information.

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Waste water oxidation

Wet oxidation of waste water

For wet oxidation and other processes, we recommend our tried-and-tested LEWA diaphragm pumps. Ask our experts for more information!

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Metering of Supercritical fluids for example in the coffee production

Extraction with supercritical fluids

Processes with supercritical fluids in pharmaceutical, food and beverage industries. Ask our experts for more information! 

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Edible oil production in the Food Industry

Production of edible oil

LEWA diaphragm metering pumps are used for the production of edible oil. We are happy to assist with your individual production process.

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Biofuel production

Production of biodiesel

LEWA provides metering systems for producing biodiesel and other biofuels. Consult us!

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Production of detergents

Dilution of surfactants

Dilution of surfactants such as sodium lauryl ether sulfate (SLES) with LEWA pumps during production of detergents.

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Silane metering

Metering of silane

LEWA systems meter any silane type reliably, precisely as well as in constant consistency and purity, regardless of chemical or physical attributes or process requirements.

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Gelatine production for sweets

Production of gelatine

In the production of gelatin and in the fabrication of gelatin products, LEWA pumps and systems are used. We would be happy to give you more information!

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Filtration with diatomite in the production of beverages

Filtration with diatomite

When beer, wine and fruit juices are filtered, the LEWA ecodos sanitary/hygienic pump is used, which is designed for handling diatomite suspensions.

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Adding anstatic agents in fuel production applications

Adding antistatic agents to improve the conductivity of fuel

Antistatic additives or antistatic agents prevent the electrostatic charging of fuels which occurs due to the friction in the pipelines during transport. Use LEWA metering systems for this application!

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Cleaning of circuit boards

Adjustment of cleaning agent concentration for electronic components

LEWA metering systems adjust concentrations of cleaning agents for the immersion cleaning of electronic components.

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Emulsifyer dilution (Mayonaise)

Dilution of emulsifiers

With its metering systems and diaphragm pumps, LEWA offers the right solution for recipe-compliant emulsifier dilution.

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Omega 3 fatty acids

Extracting omega-3 fatty acids using supercritical CO2

LEWA offers optimum pump solutions for these processes, which perform their tasks safe, permanently reliable and efficiently

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Sulfuric acid injection in copper heap leaching

Sulfuric acid injection in copper heap leaching

LEWA process pumps are used to reinject sulfuric acid at 98% into the main pipelines that go to the heap leach sprinklers. 

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Dispersing in various markets


With the diaphragm metering pumps and streamlined suspension valves, LEWA offers the suitable solution for the metering of fluids with solid particles.

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With LEWA process diaphragm pumps, as well as the NIKKISO Non-Seal canned motor pumps we offer the optimum solution for esterification.

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Metering Additives to fuels

Additive dosing for fuels

LEWA supplies both diaphragm metering pumps and process diaphragm pumps for additive dosing in fuels. We provide you with the right pump and advice for your application.

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Metering pumps in sewage plants

LEWA provides robust and safe metering pumps for sewage plants. Ask our experts for more information!

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Solutions for flavor and color metering in the confectionery industry

LEWA creates custom-made, complete solutions that are ready to implement in your applications. 

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2 MB | pdf | 18.02.2022


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2 MB | pdf | 18.02.2022


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