LEWA ecoflow ^®
diaphragm metering pump

Its sophisticated modular system makes the ecoflow diaphragm metering pump the correct industrial pump for almost all applications.

Whether toxic, abrasive or sensitive liquids – the ecoflow diaphragm metering pump is the first choice for almost all fluids. Our experts design drive units and pump heads for you individually. The ecoflow series implements a flow rate of up to 19 m³/h per pump head and a discharge pressure of up to 1200 bar.

LEWA ecoflow^®
The all-around talent for virtually all industries.

No matter if offshore in rough seas or in production in pharmaceutical cleanrooms – the ecoflow diaphragm metering pump has established itself worldwide in a range of different industries as a reliable and economical metering pump.

It features an exact metering rate and enormous durability in extreme operating conditions. Low life cycle costs and high energy efficiency complete the profile of a true all-around talent.

Thanks to the tried-and-tested modular system, ecoflow diaphragm metering pumps can be configured with various pump heads and drives for almost all applications. Here, we set technological and qualitative standards: Each ecoflow diaphragm metering pump is equipped with the patented DPS diaphragm protection system and produced in Germany.

Good reasons for a LEWA ecoflow^®

The LEWA ecoflow is a hydraulically actuated diaphragm metering pump that provides numerous advantages over comparable pumps.

Unique suction capacity

The LEWA ecoflow diaphragm metering pump differs from other pumps due to its unique suction capacity. With an absolute suction pressure of up to 0.1 bar abs., it not only provides a wide array of safe installation options. The operating costs for the entire system can also be lower than with other pumps.

Absolutely safe startup

Starting up the metering pump is safe and easy: When the pump is not operating, a spring pulls the diaphragm into a safe position at all times. This allows us to guarantee maximum safety when starting up your system and a long service life of the diaphragm.

Low maintenance costs and a long service life

The ecoflow series features a long service life for all components and particularly low maintenance and operating costs. If the regular maintenance intervals are maintained, our diaphragm pumps can operate for 40 years or more in your production process.

API 675 standard

The ecoflow series fulfills the internationally valid quality standard of the American Petroleum Institute API 675. It includes all definitions for a diaphragm metering pump in industrial use in terms of its design, construction, performance and acceptance test.

Safety and reliability in extreme operating states

For us, safety and reliability comes first: The pump is not subjected to damage, even after operating errors occur or in extreme operating states. We offer maximum protection for user and machine through built-in safety mechanisms - not only when excess primary pressure is present, but also when the pressure or suction line is closed.

Suitable for virtually all fluids

The ecoflow series is suitable for almost all liquids thanks to its flexible design. Whether they are dangerous, toxic, abrasive, viscous, environmentally harmful or sensitive fluids, the user-specific configuration always gives you the correct diaphragm metering pump.

Patented sandwich diaphragm

Our patented LEWA sandwich diaphragm is not only extremely durable, but also well-protected. The LEWA DPS diaphragm protection system and a diaphragm monitoring system allow us to ensure that the diaphragm does not tear during operation and that the pump fluid is not contaminated.

Integrated pressure relief valve

A pressure relief valve in the hydraulic part of the diaphragm pump prevents potential overload situations in operation. This valve is individually adjustable and can therefore be adapted to different operating situations.

High energy efficiency

LEWA diaphragm pumps achieve the highest efficiency of all pump technologies. Our ecoflow series also combines high efficiency with low energy consumption.

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.

Worldwide standards

When designing pumps, we adhere to globally valid standards such as VDMA 24284, 24286‐10 and FDA guidelines.

Videos about LEWA ecoflow^®

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LEWA Creating ecoflow

Typical production of a LEWA ecoflow diaphragm metering pump in the production plant in Leonberg, Germany. Covers the full cycle from parts production to quality control, assembly, testing and shipment.

LEWA Creating ecoflow

LEWA ecoflow – complete animation

LEWA ecoflow – snifting valve

LEWA ecoflow – pressure relief valve

LEWA ecoflow – pressure in pump head M910

LEWA ecoflow - multiplex drive element

LEWA ecoflow - mounting of diaphragm

LEWA ecoflow - diaphragm monitoring

LEWA ecoflow - M910 upset suction condition

LEWA Creating ecoflow

LEWA ecoflow – complete animation

LEWA ecoflow – snifting valve

LEWA ecoflow – pressure relief valve

LEWA ecoflow – pressure in pump head M910

LEWA ecoflow - multiplex drive element

LEWA ecoflow - mounting of diaphragm

LEWA ecoflow - diaphragm monitoring

LEWA ecoflow - M910 upset suction condition

Options

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.

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.

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).

Diagnostic connection

Our pumps and systems have connections that facilitate the diagnosis of their performance. This is done by a service technician on site or via remote monitoring.

Heating and cooling jacket

With heating and cooling jackets, our pumps are suitable for almost any temperature and can convey fluids at low temperatures or extreme heat.

Intellidrive technology

Using the highly-dynamic servomotor, you can adjust the stroke of the pump to the requirements of your system and your process.

Special design materials

If the process demands it, wetted parts such as pumps heads and valves will be made of special materials such as stainless steel 316/316L (1.4401/1.4404), Hastelloy or Duplex steel and PVC.

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.

References

Metering of liquid CO2 (blowing agent)

Metering of liquid CO2 (blowing agent)

The customer’s challenge: For the manufacturing of insulation materials the metering of liquid CO₂ (blowing agent) is required

LEWA’s scope of delivery: Skid

Delivery in detail: 1 Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDE3 / M200, cooling unit, mass flow meter, DCS with control according to set point setting

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
Fluid Pressure in bar Flowrate in l/h
Carbon dioxide 414 100
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents;
Expanded foam, Extrusion
CO2 Metering of liquid CO2 (blowing agent)

CO₂ Metering of liquid CO₂ (blowing agent)

The customer’s challenge: For the manufacturing of insulation materials the metering of liquid CO2 (blowing agent) is required

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDB1 / M200, cooling unit, mass flow meter, DCS with control according to set point setting

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA ecofoam
Fluid Pressure in bar Flowrate in l/h
Carbon dioxide 300 4.2
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents,
Expanded foam, Extrusion
Metering of liquid butane (blowing agent)

Metering of liquid butane (blowing agent)

The customer’s challenge: For the manufacturing of insulation materials and packaging materials the metering of liquid butane (blowing agent) is required

LEWA’s scope of delivery: System

Delivery in detail: 1 Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDC3 / M910S, mass flow meter, piping, filter, pressure regulator and control cabinet with LEWA smart control controller

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA smart control
Fluid Pressure in bar Flowrate in l/h
Butane 340 30
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents,
Expanded foam, Extrusion
Metering of liquid butane (blowing agent)

Metering of liquid butane (blowing agent)

The customer’s challenge: For the manufacturing of insulation materials a metering system for liquid butane (blowing agent) is required

LEWA’s scope of delivery: System

Delivery in detail: 1 Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDE3 / M900, mass flow meter, DCS with control according to set point setting

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA ecofoam
Fluid Pressure in bar Flowrate in l/h
Butane 350 100
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents,
Expanded foam, Extrusion
Metering of butane (blowing agent)

Metering of butane (blowing agent)

The customer’s challenge: For the manufacturing of insulating material a metering system for butane (blowing agent) is needed

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system with 1 LEWA ecoflow diaphragm pump, type LDD3 / M910, cooling unit, mass flow meter, DCS with control according to set point setting

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA ecofoam
Fluid Pressure in bar Flowrate in l/h
Butane 350 88
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents,
Expanded foam, Extrusion
Metering of flame retardant (Irganox 1081)

Metering of flame retardant (Irganox 1081)

The customer’s challenge: In the production of plastics the metering of flame retardant is required

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system completely installed in heated cabinet, with 1 LEWA ecoflow diaphragm metering pump, type LDB1 / M900, strainer, valves, mass flow meter and control cabinet, with melting tank 50 l, for operating temperature of 100 °C.

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
Fluid Pressure in bar Flowrate in l/h
Flame retardant 20 14
Market Process
Synthetic Fibers - Synthetic Materials / Plastics PVC - E-PVC
Metering of flame retardant

Metering of flame retardant

The customer’s challenge: In the production of plastics flame retardant has to be metered

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system completely electrical heat traced and insulated, with 1 gear wheel pump, storage tank, strainer, valves, mass flow meter and control cabinet, for operating temperature of 80 °C

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA ecofoam
Fluid Pressure in bar Flowrate in l/h
Flame retardant 137 14
Market Process
Synthetic Fibers - Synthetic Materials / Plastics Polyester
Metering of dispersion of polymers

Metering of dispersion of polymers

The customer’s challenge: For the manufacturing of roofing tiles a metering system for dispersion of polymers is needed

LEWA’s scope of delivery: Skid

Delivery in detail: 1 Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDE1 / M900, reduced pulsation at 2 different pressures, 2 pressure retaining valves, control unit

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
Fluid Pressure in bar Flowrate in l/h
Polymer 80 300
Market Process
Synthetic Fibers - Synthetic Materials / Plastics Dispersions
Metering of chlorofluorocarbon (CFC) (blowing agent)

Metering of chlorofluorocarbon (CFC) (blowing agent)

The customer’s challenge: For the manufacturing of insulating packing material the metering of chlorofluorocarbon (CFC), freon 152 a as blowing agent is required

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system with 1 LEWA ecoflow diaphragm metering pump, type LDC3 / M910, cooling unit, mass flow meter, DCS with control according to set point setting

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
LEWA ecofoam
Fluid Pressure in bar Flowrate in l/h
Foaming agent 300 30
Market Process
Synthetic Fibers -
Synthetic Materials / Plastics Blowing agents,
Expanded foam, Extrusion
Injection of scale inhibitor

Injection of scale inhibitor

The customer’s challenge: For the injection of scale inhibitor a compact injection package for offshore service is required

LEWA’s scope of delivery: Package

Delivery in detail: Compact LEWA Chemical Injection pump skid with LEWA ecoflow diaphragm metering pump, type LDB and interconnecting tubing

LEWA main product/s:
LEWA Chemical Injection Package (CIP)
LEWA ecoflow diaphragm metering pump
Fluid Pressure in bar Flowrate in l/h
Scale inhibitor 60 6
Market Process
Offshore / Oil & Gas Oil production, Offshore
Metering of antistatic agent

Metering of antistatic agent

The customer’s challenge: In a refinery process additives have to be reliably metered

LEWA’s scope of delivery: System

Delivery in detail: Custom-designed metering system completely installed in container with 2 LEWA ecoflow diaphragm metering pumps, type LDB / M900, for hazardous area zone 1, including pulsation damper, strainer, valves, pressure transmitter and mass flow meter

LEWA main product/s:
Custom-designed metering system
LEWA ecoflow diaphragm metering pump
Fluid Pressure in bar Flowrate in l/h
Antistatic agent 14 50
Market Process
Petroleum Refining / Refineries Additive (final products i.e.fuel,wax)

Fluid	Pressure in bar	Flowrate in l/h
Carbon dioxide	414	100

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents; Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Carbon dioxide	300	4.2

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents, Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Butane	340	30

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents, Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Butane	350	100

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents, Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Butane	350	88

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents, Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Flame retardant	20	14

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	PVC - E-PVC

Fluid	Pressure in bar	Flowrate in l/h
Flame retardant	137	14

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Polyester

Fluid	Pressure in bar	Flowrate in l/h
Polymer	80	300

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Dispersions

Fluid	Pressure in bar	Flowrate in l/h
Foaming agent	300	30

Market	Process
Synthetic Fibers - Synthetic Materials / Plastics	Blowing agents, Expanded foam, Extrusion

Fluid	Pressure in bar	Flowrate in l/h
Scale inhibitor	60	6

Market	Process
Offshore / Oil & Gas	Oil production, Offshore

Fluid	Pressure in bar	Flowrate in l/h
Antistatic agent	14	50

Market	Process
Petroleum Refining / Refineries	Additive (final products i.e.fuel,wax)

Metering of liquid CO2 (blowing agent)
CO2 Metering of liquid CO2 (blowing agent)
Metering of liquid butane (blowing agent)
Metering of liquid butane (blowing agent)
Metering of butane (blowing agent)
Metering of flame retardant (Irganox 1081)
Metering of flame retardant
Metering of dispersion of polymers
Metering of chlorofluorocarbon (CFC) (blowing agent)
Injection of scale inhibitor
Metering of antistatic agent

Product range

With the combination of various pump heads and gear units, the LEWA ecoflow diaphragm metering pumps cover a wide performance spectrum. This allows us to provide you with a high-performance, energy-saving pump for any desired application.

Drive unit data

Type	Hydraulic power[kW]
LDB	0.1
LDC	0.2
LDD	1.0
LDE	2.0
LDF	3.5
LDG	6.0
LDZ	15
LDH/LDHB	20/35

Performance overview

Installation dimensions

Save space and weight through multiple arrangement of pumps or arrangement in the compact boxer design. Meter multiple liquids at the same time with various pump heads.

Installation dimensions

Type	L [mm]	B [mm]	ΔB [mm]	H [mm]
LDB	400	400	185	260
LDC	450	500	220	320
LDD	700	750	280	610
LDE	800	900	350	690
LDF	1130	900	430	940
LDG	1300	1300	490	1000
LDZ	1700	1700	700	1140
LDH	2100	1800	717	1500

Installation dimensions

Pump head variants

We provide various pump heads for different applications. Here, the spectrum ranges from all-purpose variants to special designs for high temperatures, pressures or aggressive fluids.

Pump head M500

Universal diaphragm pump head with PTFE sandwich diaphragm for high flow rates. Proven, durable, reliable and with diaphragm position control.

Type	M500
Pressure	350 bar
Flow rate	19 m³/h
Temperature	-50/+150 °C
Viscosity	100.000 mPa∙s
Operational capability	Metal pump heads (316/316L): can be installed on all ecoflow drive units ≥ LDE Plastic pump heads (PVC/PVDF/PTFE): can be installed on all ecoflow drive units ≤ LDE

Pump head M900

State of the art universal diaphragm pump head with PTFE sandwich diaphragm for maximum operational reliability The patented DPS technology also enables a suction lift cabability that is globally unique in the field of hydraulically actuated diaphragm pumps. Can be installed on all ecoflow pumps.

Type	M900
Pressure	500 bar
Flow rate	6 m³/h
Temperature	-20/+150 °C
Viscosity	100.000 mPa∙s
Operational capability	Can be installed on all ecoflow diaphragm metering pumps.

Pump head M800

Universal diaphragm pump head with PTFE sandwich diaphragm for extreme pressures. The special geometry of the diaphragm clamping system enables the use of PTFE diaphragms in pressure ranges up to 1000 bar and thus results in a very compact shape. Very economical solution in the range of high pressures, especially in comparison to pump heads with metal diaphragms.

Type	M800
Pressure	1.000 bar
Flow rate	1,1 m³/h
Temperature	-10/+60 °C
Viscosity	100.000 mPa∙s
Operational capability	Can be installed on all ecoflow process diaphragm pumps ≥ LDF.

Pump head M200/M400

Proven pump head with metal diaphragm for extreme pressures and high temperatures. Also suitable when a high degree of permeation resistance is required. The diaphragm is working between two contour plates, limiting the deflection of the diaphragm and providing an extreme level of operational reliability. The diaphragm monitoring system offers a plus for safety by immediately displaying the damage of a diaphragm layer.

Type	M200/M400
Pressure	1.200 bar
Flow rate	1,1 m³/h (M200) 0,8 m³/h (M400)
Temperature	-40/+200 °C
Viscosity	500 mPa∙s
Operational capability	M200 can be installed on all ecoflow diaphragm metering pumps ≤ LDE, M400 can be installed on all ecoflow process diaphragm pumps ≥ LDF.

Special pump heads in remote head design

Some tasks in process engineering include the metering or circulation of media with critical properties like high temperature and high abrasivity. These critical conditions frequently need to be kept away from the displacer system of the metering pump, either to protect the system or its operating personnel. A normal metering pump is not suitable for such tasks due to its compact design.

Type	MR / MV / KV
Pressure	500 bar
Flow rate	19 m³/h
Temperature	-70/+400 °C
Viscosity	100.000 mPa∙s
Operational capability	Remote pump heads can be installed on all LEWA ecoflow metering and process pumps and on all LEWA triplex metering and process pumps.

Industries

Oil & Gas

You can rely on 60 years of experience in the construction of pumps, packages, skids, and systems for onshore and offshore oil and gas production. Take a look at the information now!
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Gas Odorization

LEWA odorizes gas: Custom units or tried-and-tested systems – we supply exactly what you need!
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Refineries

We have been supplying pumps and systems for distillation plants for processing crude oil for 60 years. Ask our experts for more information!
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Petrochemicals

LEWA provides durable pumps and metering systems for various processes in the petrochemical industry. Ask our experts for more information!
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Chemicals

LEWA supplies you with individual chemical pumps and customized system solutions for various areas of application in the chemical industry.
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Plastics processing

LEWA supports you in plastics processing with custom-built plants and systems. Ask our experts for more information!
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Cleaners & Detergents

We offer reliable, formula-controlled systems for the production of cleaners and detergents. Ask the LEWA experts for more information now!
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Personal Care

LEWA is your reliable partner in the production of personal care products. Our systems meet the strictest quality and hygiene requirements. Take a look at the information now!
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Pharmaceutical, Life Sciences & Biotech Industries

LEWA supplies pumps and systems for the pharmaceutical, life sciences, and biotech industries that comply with all hygienic requirements. We're happy to help you with advice!
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Food & Beverage Industry

Use LEWA pumps and system solutions for your homogenization processes in the food and beverage industry. Ask our experts for more information!
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Energy Utilities

We supply pumps and systems for power plants and power suppliers. Find out more about LEWA system solutions for the energy utility industry.
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Other Industries

As specialists in fluid handling, we of course also have experience in many other industries. Simply contact our consultants to find out more!
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