Hydrogen Process Gauge – 1209

by Ashcroft Inc.

  • Full pressure relief back for safety
  • Socket welded to case for superior leak integrity
  • Protects when sudden pressure surge occurs at start-up or during process pressure spikes
  • Stainless steel high overpressure solid front hydrogen process gauge
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Hydrogen Process Gauge – 1209

  • The Ashcroft® 1209 is a high performance 4.5″ ASME style Process pressure gauge with a stainless steel case designed for applications requiring safety and reliability.
  • Features include a solid front case, standard acrylic window and ranges up to 20,000 psi (1,400 bar).

Key Features

  • Complies with ASME B40.100
  • Solid-front case design for safety
  • Socket-to-case weld for superior leak integrity
  • 316L stainless steel case, ring and back cover
  • 316L stainless steel or Monel wetted parts
  • Full pressure relief back cover
  • PLUS!™ Performance (OPT.)
  • High over pressure up to 417% of range option XRA (see datasheet for specifications)


  • Accuracy: ±0.5% of span (ASME B40.100, Grade 2A)
  • Size: 4 1/2″
  • Pressure ranges: vacuum, compound, 20,000 PSI (1400 bar)
  • Process connection size
    • 1/2 NPT Male 1/4
    • NPT Male Process
  • Connection location: Lower
  • Case style: Solid front
  • Window: Acrylic (STD.), safety glass (OPT.)
  • Weather protection: IP65 hermetically sealed
  • Mounting
    • flush
    • pipe
    • remote
    • stem, surface
  • Movement: Adjustable
  • Dampening: Liquid fill, throttle screw, PLUS!™ Performance


  • Cryogenic applications
  • Power generation
  • Turbines and compressors

Contact us

  • The Ashcroft® 1209 comes with dry, liquid filled or PLUS!™ Performance option . Interested? Please contact Ashcroft by filling in the contact vendor or request for quote form.
Max Pressure (in bar)

Max Ambient Temperature (in °C)

Min Ambient Temperature (in °C)

Compliant with

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Ingress Protection Rating

Technical Datasheet

Technical Datasheet - Process Gauge1209

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      Ashcroft Inc.

      You shouldn't have to be an expert in pressure and temperature instrumentation to get the right components for your hydrogen applications. You need a partner with expertise in the hydrogen industry who can help you meet instrument quality and safety requirements. Ashcroft has decades of experience partnering with customers and offering solutions for their hydrogen applications including pressure sensors (transducers and transmitters), pressure gauges, pressure switches, diaphragm seals and temperature sensors. Let us help you navigate the expanding hydrogen market and its demands.

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