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LEWA Process Diaphragm Pumps:  LEWA Diaphragm Pump Catalog (PDF)
The LEWA process diaphragm pumps for high pressure process engineering are the standard for tightness in the high pressure range. With LEWA process diaphragm pumps even critical, toxic or inflammable fluids can be conveyed safely. Also extremely low viscosity, non-lubricating fluids or abrasive suspensions are handled without any problems. The pressure range goes up to 1,200 bar. They meet API 674 and API 675 standards. Flow rates up to 180 m3/h per pump head.
Discharge pressures up to 1,200 bar
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Apart from specifically adapted process diaphragm pumps, LEWA also develops and supplies complete pump systems, which can be easily and directly integrated into the complete installation. All components including control and protection installations are appropriately designed and optimised for the respective application. All national and international standards are met. Characteristics of the process diaphragm pump are listed as the following:
- Instrumentation for the pump
- Flow adjustment via frequency inverter
- Interfaces to the process guiding system
- LEWA CMS (Condition Monitoring Systems)
Advantages of LEWA Diaphragm Pump Heads:
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Durable metal or PTFE sandwich diaphragm with diaphragm monitoring system
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Protected against overload by ad justable pressure limiting valve
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Absolute safe dry operation
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High metering accuracy by linear pump characteristics
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Minimum maintenance costs due to low-wear components
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Highly economical, low life-cycle costs
For an optimum match to the different applications LEWA can utilize nearly unlimited options:
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In addition to 1.4571 (316Ti), the standard material, wetted parts can be supplied of special materials such as Duplex Stainless Steel, Hastelloy or Titanium
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Hook-up connections to all standards or customer's specification
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Heating or cooling devices for melts or e.g. liquefied gases
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Special valves for fluids with abnormal flow behaviour or slurries
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Easy clean pump heads (CIP)
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3A-approved, hygienic designs for food stuffs, pharmaceutical and bio-technology applications
The range of LEWA process diaphragm pump mainly covers the following product lines：
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Ecodos : 4-layer PTFE diaphragm design, mechanically actuated, suitable for low pressure range process.
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Ecosmart : compact design, low purchasing price and operational cost, suitable for low flow, low to mid operating pressure ranges.
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Ecoflow : suitable for mid to high operating pressure ranges.
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Microflow : hydraulically actuated, metal diaphragm.
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Clean Market : pharmaceutical, biotech, food and beverage
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Packaging System : custom-made metering package system
Diaphragm Pump Head with PTFE diaphragm up to 350 bar (M500 Series)：
- Pressure up to 350 bar
- Flow rate up to 50 m³/hr per pump head
- Temperature from -50 to +150° C
- Viscosity up to 100.000 cP
Diaphragm Pump Head with PTFE diaphragm up to 800bar (M800 Series):
- Pressure up to 800 bar
- Flow rate up to 20 m3/hr per pump head
- Temperature -20° C to +80° C
- Viscosity up to 100.000 cP
Diaphragm Pump Head with metal diaphragm up to 1200bar (M400 Series):
- Pressure up to 1,200 bar
- Flow rate up to 5 m³/hr per pump head
- Temperature up to +200° C
- Viscosity up to 500 cP
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