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SOLFRUNT 1986 Monel Pressure Gauge

1986 Pressure GaugeThe SOLFRUNT 1986 Solid Front process gauge has a 4 ½” gauge size, and has a MONEL seamless bourdon tube and socket. The Model 1986 pressure gauge is typically used for HF service (hydrofluoric acid) during the alkylation process at a refinery. 

This pressure gauge has a solid front black glass reinforced thermoplastic (PBTB) turret style case for chemical and petrochemical processing applications. For users needing a liquid filled pressure gauge the 1986 comes standard with an E-Z Fill field fillable case. No extra parts are needed to make this gauge a liquid filled pressure gauge. It is also available with an optional yellow or orange case.  The 1986 gauge also provides NEMA 4x / IP67 weather protection for outdoor applications.

The Model 1986 process gauges are supplied in 21 vacuum, compound, and pressure ranges from 30" Hg vacuum through 10 000 psi. Standard dials are single psi gauge pressure, but the gauge can also be ordered with dual scale psi/metric scales or custom dials.
Gauge size: 4 ½”.

All Model 1986 pressure gauges are RoHS compliant to the EU directive 2011/65/EU.

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Accuracy:  ±(0.5 % FS)

Size:  4 ½" (114mm) 

Wetted Parts:  MONEL
Ranges:  Vacuum - 30 to 0 "Hg VAC (counterclockwise rotation) 
Compound - 30"Hg VAC to 300 psi
Pressure - 0 to 10 000 psi
Weather Protection:  NEMA 4X / IP67
  • Documentation +

  • Options +

    • EZ-Fill Case
      • Standard, no extra charge. The EZ Fill case allows the end-user to liquid fill the gauge in the field, without any special parts or equipment. Just pull the fill plug and fill with your fill fluid to create your own liquid filled pressure gauge.
    • Liquid Filling
      • Order Code: LG, LS, or LM - Extend the life of your pressure gauges. Liquid filled pressure gauges are generally recommended over dry gauges due to performance and durability. When USG’s liquid filled gauges are filled with Glycerin (LG), Silicone (LS), or Mineral Oil (LM) you’re helping to prevent gauge failure commonly caused by excessive vibration or pulsation. Glycerin is the most common fill fluid and is typically used for room-temperature applications. Silicone is used for more extreme temperature applications. Mineral Oil can also be used for higher temperature ranges.
    • Shatter-Resistant Window
      • Order Code: SR - Shatter-resistant glass replaces the standard window.
    • NIST Calibration Certificate
      • Order Code: /C - NIST (National Institute of Standards and Technology) Certification of Calibration states that the pressure gauge was tested at multiple test points and is within its stated tolerance of accuracy. Gauge is shipped with a sticker on the side of the gauge noting the certification number and date, and NIST certificate.
    • Yellow or Orange Case
      • Order Code: YEL or ORG - The standard black thermoplastic case with be replaced with an orange or yellow case providing better visibility.
    • Dual Scale Dials
      • US Gauge offers most pressure ranges in dual scale, such as psi & kPa, psi & BAR, psi & kg/cm2, or single scale metric such as kPa, kg/cm2, or BAR. Dual scale dials are available at no extra charge. Please reference our data sheet or email customer service at with any questions.