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PPM Grade Dual Column Inert Gas Purifier with Regeneration Heater (Removing O2 & H2O to PPM) - GPH-DHDO

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Item Number: GPH-DHDO
GPH-DHDO connects two gas purifiers ( one for de-oxygen and another for de-humidity ) together by 1/4'' stainless steel pipe and two valves and ready to install to any MTI gas mixing system. It reduces gaseous impurities to sub-ppm levels at room temperature operation. It removes H2O, O2, CO, CO2, H2 and NMCH's to <0.1 ppm from any  99.9% purity inert gas (Nitrogen, Argon, Helium, Krypton, Neon and Xenon) and H2O, O2and CO2 from Hydrogen. What is more, it has the buit-in heater which can be heated to 300C to easily regenerate the de-oxygen and dehydration chemical in the unit for long term use.
  • Input gas purity requirement: < 1000 ppm  ( 99.9%)
  • Output: Removal of impurities to < 0.1 ppm   ( O2 ≤ 0.1ppm  H2O ≤ -76℃ in dew point,  ( Please click here to convert humidity unit )
  • 304L SS (<10 Ra EP) vessel
  • Easy to regenerate
  • Digital temperature controller and Gas flow meter control are built in
  • Purification capacity up to 80L inert gas after regeneration
  • The unit should be regenerated at 250 °C ( using 5N purity gas of 95%N2+5%H2)


Power Input 208-240V single phase 50/60Hz (110VAC version is available upon request )
Power  Consumption: 500W (when heating)

Maximum Pressure  Input 0.5Mpa
Operating Temperature  Room Temperature- 300oC
Leak Rate     < 2 x 10-9 atm cc/sec He             

Temperature Controller MTE cerified Digital temperature controller with +/- 1oC accuracy
Max. Flow rate  400mL/minute   
Gas Fittings   

1/4 Swagelok   (Please order spare tube )



Application Notes
Need to detect the oxygen content, click here for Trace Oxygen Analyzer (picture on left) or for detecting the humidity content, click here for Precision Humidity Analyzer  (picture on right)


Operation Instructions

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