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GX1 High-Pressure Valve | Electronic Pressure Regulator

The GX1 high-pressure valve is a complete re-design of Proportion-Air’s successful GP product. With this re-design, we greatly improved the accuracy, resolution and repeatability of our high-pressure control valve. The GX1 high-pressure valve is 50% less weight (with non O2 cleaned GX) than the GP. The GX1 can also be used to pilot a volume booster and achieve much higher flows with the same great accuracy.

The GX1 high-pressure valve has several other unique and beneficial features. An on-board split power supply allows true zero for command and monitors even though the GX is powered by a conventional single-ended power supply. The GX1 utilizes advanced on-board power management hardware to minimize current draw and heat build up. The GX1 also features status indicating LEDs for power and TTL. The TTL signal is a conditional on/off signal to use for diagnostic purposes. This signal is LOW when the pressure is within 1% of final setting.

The GX series can be paired with a variety of high-pressure volume boosters for even greater flow. When using a volume booster, the GX2 can be used to achieve accuracy similar to the GX1.


GX1 High-Pressure Valve1:1 Precision pressure control | Vacuum to 1,000 PSI

  • GX1 High Pressure Valve
  • Pressure Range: Vacuum thru 1,000 PSI (69 Bar)
  • Accuracy: ±0.25% F.S.
  • Repeatability: ±0.15% F.S.
  • Resolution: ±0.1% F.S.
  • Max Flow: 26 SCFM @ 1,000 PSI (736 LPM)
  • Port Size: 1/8″ NPT (BSPP Available)
  • Operating Temps: 32-158°F (0-70°C)
  • Filtration Recommended: 40 Micron
  • Protection Rating: IP65
  • Oxygen Compatible: Yes
  • Command Signals: 0-10 VDC or 4-20 mA

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