Glycerin-Filled Pressure Gauge

A glycerin-filled pressure gauge is a robust and precise instrument commonly used in industrial applications. These gauges are filled with glycerin, a viscous liquid, which serves to dampen vibrations and protect the internal components from damage caused by pressure spikes or external shocks.

Advantages of Glycerin-Filled Pressure Gauges

  1. Vibration Resistance: The glycerin inside the gauge minimizes needle oscillations, ensuring easy readability in environments with heavy vibrations.
  2. Extended Lifespan: By lubricating the internal mechanisms, glycerin reduces wear and tear, extending the gauge’s durability.
  3. Wide Temperature Tolerance: Glycerin prevents condensation on the inside of the lens in humid conditions, maintaining clear visibility.

Applications
These gauges are ideal for:

  • Oil and gas pipelines
  • Hydraulic systems
  • Manufacturing plants
  • HVAC systems
  • Marine environments

Technical Specifications
Below is a typical set of specifications for a glycerin-filled pressure gauge:

FeatureDescription
Dial Size1.5″, 2.5″, 4″, 6″
Case MaterialStainless Steel (304 or 316)
Bourdon TubePhosphor Bronze or 316SS
LensGlass or Acrylic
Connection TypeNPT, BSP
Accuracy±1% of full scale
Filling MaterialGlycerin
Operating PressureUp to 60 bar
Temperature Range-20°C to 60°C

Why Choose Glycerin-Filled Gauges?

  • Durability: The filling protects against mechanical shocks.
  • Versatility: Suitable for both static and dynamic pressure measurement.
  • High Performance: Ensures consistent operation in challenging environments.


Glycerin-filled pressure gauges are an essential tool for ensuring safe and accurate pressure readings in harsh conditions. Their reliability and cost-effectiveness make them a popular choice across industries.