Technology: Compressed air operated double-diaphragm displacement pump
- Wilden standard compressed air diaphragm pumps are particularly ideal
for challenging applications involving solvents, acids, pickling fluids or high viscosities
- Flow rate and pressure variable
- For shear-sensitive conveyed goods
- Metering larger solids
- Dry run safe
- Infinitely variable control via air volume or pressure
- Can work against closed slide valve
- Transportable & immersible
- Operation and service friendly
- Temperature limits depending on material from –51°C to 176°C
- Certificates CE, ATEX, FDA, USDA, 3A, EHEDG (depending on pump type)
The Pro-Flo™ patented air control system has only three moving parts: The asymmetric control piston, the pilot valve and the piston rod/diaphragm unit.
The small surface of the control piston is continually supplied with compressed air, while the larger surface is ventilated or bled via the pilot valve.
An air control system with maximum reliability.
Pro Flo X
The Pro-Flo X air control system is a further development of the proven Pro-Flo and Pro Flo V controls.
With the new type of effectiveness management system (EMS), the Pro-Flo X offers a flexibility that was previously unknown with compressed air diaphragm pumps.
The patented EMS is simple and easy to operate. By turning the EMS adjustment wheel, the metered quantity and air consumption can be adjusted - to the maximum metered quantity or the highest efficiency to reduce production costs. Pro-Flo X delivers a higher energy efficiency and a flexibility comparable to the industry standard, at lower cost.
The Accu-FloTM air control system uses a 2/4-way solenoid valve with a spring-loaded piston. The control of the stroke frequency is done externally via an electrical pulse. The Accu-FloTM pump moves similarly to a conventional compressed air diaphragm pump through alternating presence or absence of a signal.
- Immersible compressed air diaphragm pump for solids containing sludge
- Pumps can be used without suction line in swampy holes
- Long service life design for rough applications
- Solid materials up to 25 mm can be conveyed
- Compressed air driven, no electricity
- Carrying handles enable simple transport
- Flap valve pump for especially heavy conditions of use
- 51 respectively 76 mm passage for reliable conveyance of solids containing sludge
- Long service life, durable design
High pressure design
- High pressure diaphragm pumps for conveying viscous industrial sludge
- Filter press charging or general industrial applications
- Double-acting Duplex technology with 1:3 ratio of drive/pumping pressure
- No cost-intensive external booster needed to achieve high pumping pressure
- Diverse connection geometries
- Various housing materials: Cast iron, aluminum, stainless steel, Hastelloy C, polypropylene, PVDF
- The Wilden muscle: the diaphragms
- NBR, Neoprene, EPDM, Viton®, polyurethane, Wil-Flex™, Saniflex™, PTFE
- Membranes in Ultra-Flex design
- Wilden developed Ultra-Flex™ technology with the goal of making Wilden diaphragms the longest- lasting diaphragms on the market. The Ultra-Flex™ technology includes many design ideas which reduce the bending load. The key to a longer diaphragm service life.
- Sanitary & hygienic design available
- CIP and SIP capability
- Pulsation damper, diaphragm monitoring, stroke counter, operational monitoring, filter control, solenoid valves, barrel pump set Saniflex™, PTFE
|Pump type||Max. flow rate [l/min]||Max. discharge pressure [bar]|
|Plastic Advanced TM||16.7||57||220||454||624||784||-||8.6|
|Metal Advanced TM||-||-||212||424||685||1,030||-||8.6|
High-pressure version available.
Pumps and Packages for the Production of Crude Oil and Natural Gas
LEWA has been your expert in pumps and packages since the 1950s. With us, you get everything from a single source: Our custom-built packages are used all around the world for offshore crude oil and natural gas production. From China to the United Arab Emirates, strong partners rely on our expertise for crude oil exploration applications.More Details
Gas Odorization with LEWA Pumps and Metering Packages
Natural gas, oxygen, and nitrogen are odorless but potentially dangerous. This is why these gases are "odorized" with as strong a smelling substance as possible. For more than 40 years, LEWA has been developing systems for the odorization of gases such as natural gases, biogases, and liquefied gases. This process is enormously important, so the odorizing system has to operate precisely and reliably.More Details
Pumps and Metering Systems for Distillation Plants and Applications in Refineries
Crude oil must be cleaned, separated, and converted (refined) until the final products suitable for sale are made (e.g., gas, diesel, heating oil, lubricants, propane, butane). LEWA supports you with pumps and metering systems, which are used in the refining process during chemical metering. Application with our products are distillation plants, coker, cracker, or visbreaker, for example. Ask our experts for more information!More Details
Pumps and Metering Packages for the Petrochemical Industry
We have supplied durable pumps and metering systems for applications such as the hydrocracking process for over 50 years. Petrochemicals generate starting products for the manufacture of plastics, pharmaceuticals, colorants, detergents, and other products. Contact our experts and allow us to provide you with detailed information about metering and pumping solutions for the hydrocracking process!More Details
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!More Details
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.More Details
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.More Details
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.More Details
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.More Details
Pumps and Systems for the Food and Beverage Industry
LEWA supports producers and plant construction companies in the food and beverage industries with pumps and systems for homogenization and dispersion, as well as for other processing operations in the food industry. We work with you to plan all the important process-related operations, such as conveying, metering, mixing, heating, and cooling so that you can process your raw product cost-effectively.More Details
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.More Details
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.More Details
Wilden standard compressed air diaphragm pumps are particularly ideal for challenging applications involving solvents, acids, pickling fluids or high viscosities.
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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.More Details