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PUREX Point-Of-Use systems dispense instant, temperature controlled WFI or PW, and are designed to meet the high quality requirements and hygienic standards of the pharmaceutical industry. When not in use, a continuous flow of hot water (from the main loop) maintains sanitization. Exergy offers standard and custom models using our compact, high performance heat exchangers for the most demanding conditions. Many features and options can be customized.


  • Instant cold or hot WFI or PW availability at POU
  • Continuous flow of hot water keeps it sanitized at all times
  • Automated or manual operation
  • PLC with touch screen HMI with many operating modes
  • Fully drainable on product side, with no dead legs
  • Easy to install, operate and maintain
  • CIP and SIP capable

Typical Applications:

  • Cool WFI/PW from 80-85°C to 20-40°C
  • Water For Injection (WFI) systems
  • Purified Water (PW) systems


  • Economy: 0.5 usgpm to 5 usgpm (115 to 1100 LPH)
  • Advanced: 0.5 usgpm to 15 usgpm (115 to 3400 LPH)
  • Custom: 0.5 usgpm to 25 usgpm (115 to 5700 LPH)

Design Features:

  • 304 SS enclosed locking cabinet
  • Sanitary double tube sheet heat exchanger eliminates risk of cross contamination between product and working fluid
  • All product contact surfaces are passivated, less than 20 Ra and electropolish available
  • Full quality documentation provided
  • ASME BPE Compliant
  • CE & UL available

Click here to watch a video on POU Systems

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