NACE MR0175 Compliant Stainless Steel Gauges

Brand: Marsh Bellofram Group of Companies

Marsh Instruments NACE MR0175 Compliant Stainless Steel Gauges are built for extended life in harsh and corrosive sour gas H2S environments.

Wetted components are NACE MR0175 compliant and meet minimum hardness specifications. They feature an all-welded case design to add strength, with available liquid-fill to offer significant shock reduction to the instrument grade components

A safety glass window provides added ruggedness and protection.

For more information on NACE MR0175 Compliant Stainless Steel Gauges, please download a copy of our literature page.
  • Liquid-filled or dry. 
  • Adjustable micrometer pointer. 
  • Available pressure ranges to 20,000 psi. 
  • Safety glass window. 
  • NACE MR0175 compliant wetted components.



  • ASME Grade 1A - ± 1.0 % of Range across full scale

Case Sizes

  • 100 mm diameter (4”)

Case Material

  • 304 Stainless Steel

Case Styles

  • LM - Lower Mount

Tube & Socket

  • 316 Stainless Steel Welded to Case


  • Stainless Steel


  • 1⁄2” NPT (H209xx)
  • 1⁄4” NPT (H207xx)


  • Vacuum to 20,000 psi

Dial Standard

  • Dual Scale psi and kPa

Dial Color

  • Black Markings on White


  • Aluminum, Black Painted, micro-Adjustable


  • Safety Glass (Tempered)

Fill Medium

  • Glycerine
  • Silicone


  • Rubber plug with snip-off feature


  • Standard for all Ranges


  • Filled 2.0 lb
  • Dry 1.3 lb

  • Oil patch
  • Oil refineries and rigs
  • Offshore platforms
  • Control panels
  • OEM and industrial process control
  • Any pressure regulation application where H2S (sour gases) may be present

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