Nitrogen/Dry Air Generator: 24.4/25 SLPM

The D251M generator utilize nitrogen separation membrane technology to produce high purity nitrogen and dry air from internal compressed air sources. The generator is a space-saving solution that maintain quiet and steady operation.


  • Designed for use with Shimadzu LC-MS Instruments
  • Dual gas outputs for nitrogen and dry air
  • Demand sensing technology intelligently and efficiently meets instruments gas demands 
  • Plug and play operation allows for flexible configuration and easy installation
  • Low maintenance
  • 1-year warranty
  • Proton Care service plans


Source: Proton OnSite

Specifications D251
Technology Employed Nitrogen Separation Membrane
Flow Rate1
    Dry Air

Maximum 24.4 SLPM
Maximum 25 SLPM
Output Pressure
    Dry Air

0 to 110 psig / 0 to 7.6 barg
0 to 100 psig / 0 to 7 barg
Purity LCMS Grade
Ambient Humidity ≤ 70% RH, Non-Condensing
Dimensions – H x W x D 31” x 20” x 27” / 79 cm x 51 cm x 69 cm
Weight 210 lbs / 96 kg

Specifications are subject to change.
Organic compounds in the input or ambient air will negatively impact performance.
1Measured at standard conditions: 21°C, 1 atmosphere.

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