The LEWA process diaphragm pumps LEWA triplex^® and LEWA ecoflow^® for high pressure process engineering are the standard for tightness in the high pressure range. Here also LEWA has set the standards and consistently further develops the diaphragm pump technology. 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 1200 bar. They meet API 674 and API 675 standards.

Partner of the customer: System responsibility from one source

Engineering for pump systems

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.

Expandable system solutions

• Instrumentation for the pump
• Flow adjustment via frequency inverter
• Interfaces to the process guiding system
• Condition monitoring systems for electronic control
  LEWA CMS (Condition Monitoring System)

Example chemical industry:

G3R, M500, 14 m3/h, 350 bar

 

 

Example food industry:

2 x G3S, M500, 6 m3/h at 90bar

Advantages of LEWA diaphragm pump heads:

• Hermetically tight
• Durable metal or PTFE sandwich diaphragm with diaphragm monitoring system
• Protected against overload by ad justable pressure limiting valve
• Absolute safe dry operation
• High metering accuracy by linear pump characteristics
• Gentle conveying of sensitive fluids
• Minimum maintenance costs due to low-wear components
• Highly economical, low life-cycle costs

For an optimum match to the different applications LEWA can utilize nearly unlimited options

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

• Hook-up connections to all standards or customer's specification
• Heating or cooling devices for melts or e.g. liquefied gases
• Special valves for fluids with abnormal flow behaviour or slurries
• Easy clean pump heads (CIP)
• Hygienic designs for food stuffs, pharmaceutical and bio-technology applications
• 3A-approval