Video Channel of China Hongqi Automation (Jiangsu) Co., Ltd
Chat Now Contact Us
Home Videos Playlist Website

Diaphragm Pressure Gauge Industrial Gauge for Food & Beverage and Oil & Gas

Other Videos
December 23, 2025
Category Connection: Pressure Gauge
Chat Now Contact Us
Brief: Wondering how a diaphragm pressure gauge with flange handles tough industrial environments? This video provides a detailed walkthrough of its working principle, showcasing how it measures corrosive, high-temperature, and viscous media in sectors like food & beverage and oil & gas. You'll see the construction, learn about its temperature characteristics, and discover the available customizations.
Related Product Features:
  • Ideal for measuring highly corrosive, high-temperature, high-viscosity, crystallizing, or solidifying media, as well as media with suspended solids.
  • Prevents measured media from directly entering the gauge, avoiding sediment accumulation and precipitation for accurate readings.
  • Available in custom designs including stainless steel, sanitary, electrical contact, shock-resistant, flange, and diaphragm types.
  • Widely used in petrochemical, alkali production, chemical fiber, dyeing, pharmaceutical, food, and dairy industries.
  • Operates via a diaphragm isolator and pressure gauge system, where medium pressure deforms the diaphragm to transmit pressure via filling fluid.
  • Features various pressure ranges from vacuum to positive pressure, with options like -0.1~0.9 kPa up to 0-60 kPa.
  • Offers multiple connection types including threaded (M20x1.5) and flange options from DN10 to DN50 for flexible installation.
  • Constructed with durable materials such as stainless steel 304, tantalum, Hassler, or 316 membranes for specific media compatibility.
FAQs:
  • What types of media is the diaphragm pressure gauge with flange suitable for?
    It is suitable for measuring highly corrosive (e.g., hydrochloric acid), high-temperature, high-viscosity (e.g., latex), easily crystallizing (e.g., brine), easily solidifying (e.g., hot asphalt), or media containing suspended solids (e.g., sewage), where preventing direct entry into the gauge is necessary.
  • How does the diaphragm pressure gauge work?
    The gauge consists of a diaphragm isolator and a general-purpose pressure gauge. When pressure from the measured medium acts on the diaphragm, it deforms and compresses the internal filling fluid, transmitting an equivalent pressure to the Bourdon tube in the gauge, which then displays the measured value through elastic deformation.
  • What customization options are available for this pressure gauge?
    Custom designs include variations in body material (e.g., stainless steel 304), connection types (e.g., threaded or flanged from DN10 to DN50), installation methods (radial or axial), and membrane materials (e.g., tantalum, Hassler, or 316), tailored to specific industrial needs.
  • How does temperature affect the diaphragm pressure gauge's readings?
    Due to the thermal expansion of the sealing fluid used for pressure transmission, the gauge's reading increases with the temperature of the pressure-bearing part. The total temperature influence is the sum of effects from the general-purpose instrument and the diaphragm device, typically not exceeding 0.1% per degree for the pressure-bearing part.
Related Videos