Special Application Gauges

251S Sanitary Pressure Gauge

  • Certifications
  • Certifications
Product Details
  • Nominal dial size: 2.5" (63mm), 4" (100mm)
  • Case material: matted or polished stainless steel
  • Bezel: bayonet type
  • Mounting: lower mount / back mount
  • Process connection: stainless steel
  • Pressure element: stainless steel
  • Movement: stainless steel
  • Dial material: aluminum with custom scale and logo
  • Pointer: aluminum, black or white (customized)
  • Window material: tempered glass or safety glass
  • Accuracy class: ±1%, ±1.6%
  • Pressure range: vacuum to 40 bar, customizable within this range
  • IP protection rating: IP65
  • Filling liquid: Glycerine, silicone, or no oil
  • Sanitary diaphragm seals: tri-clamp, DIN, IDF, SMS, PJT
Applications

Sanitary stainless steel diaphragm pressure gauge is designed with a quick-install clamp connection and full stainless steel construction, meeting hygienic requirements for food, pharmaceutical, and related industries.

  • Food and beverage industry: used in dairy, juice, beer, sauce, and other production processes for pressure measurement in fermentation tanks, storage tanks, and pipelines, ensuring hygienic operation and corrosion resistance.
  • Pharmaceutical and bioengineering industry: used for pressure monitoring in bioreactors, formulation tanks, and sterile transfer pipelines, meeting GMP requirements and supporting CIP/SIP cleaning and sterilization processes.
  • Cosmetics and personal care industry: used in production equipment for creams, shampoos, and other viscous products to monitor pressure of high-viscosity media and prevent contamination or blockage.
  • Fine chemical industry: used for pressure measurement of mildly corrosive but hygiene-sensitive media such as fermentation liquids and pharmaceutical intermediates.
Customization
  • Logo: custom dial branding & OEM
  • Scale: bar / psi, MPa / kg/cm² or kPa / psi
  • Pressure range: standard ranges (e.g., 0-1.6 bar) or customized non-standard ranges
  • Thread size: 1/8", 1/4", 3/8", 1/2", etc.
  • Mounting: bottom mount (radial connection), back mount (axial connection), panel mount (front flange or rear flange)
  • Window material: Polycarbonate (PC), tempered glass, acrylic
  • Accuracy class: 1.5/1.6/2.5
Installation Dimensions
With over 20+ Years of manufacturing experience, Exact Instrument specializes in OEM/ODM production of pressure gauges, pressure transmitters, and thermometers. Backed by advanced manufacturing, strict quality control, and reliable delivery, we help customers worldwide build dependable industrial measurement solutions.