A liquid-filled pressure gauge is a device used to measure pressure in environments with high vibration and pulsation.
It is filled with a damping liquid, usually glycerin or silicone oil, to stabilize the needle movement.
This liquid reduces the effects of mechanical shock and ensures smooth and accurate readings.
Liquid-filled gauges are commonly used in industries such as oil and gas, chemical processing, and hydraulics.
They are ideal for applications where pressure fluctuations are frequent.
The liquid filling also helps lubricate internal components, extending the gauge’s lifespan.
These gauges are typically constructed with stainless steel or brass for durability.
They provide enhanced visibility by preventing condensation inside the dial window.
Liquid-filled pressure gauges offer improved readability in harsh operating conditions.
They are available in a wide range of pressure ratings and dial sizes.
Many models include safety features such as blow-out backs for protection.
They are resistant to corrosion, vibration, and extreme temperatures.
Installation is simple, with options for different mounting types.
They require minimal maintenance compared to dry pressure gauges.
Overall, liquid-filled pressure gauges deliver reliable and stable pressure measurement in demanding industrial environments.
Liquid-filled pressure gauges (typically glycerin or silicone) are designed for high-vibration, high-pulsation, and shock-prone environments, such as hydraulic systems, pumps, and compressors. They offer improved readability, prevent pointer flutter, and extend instrument lifespan by lubricating internal components. Common specifications include 304 stainless steel cases, 1.5–6 inch dial sizes, and brass/316SS internals.
Series 232.50
Gauge Type Bourdon
Pressure Range 0 to 1600 bar(0 to 20000 psi)
Dial Size 4 inch / 100 mm
Wetted Material SS316
Use Gas
Display Type Analog
Connection Size 1/2 inch
Pressure Type Gauge Pressure
Application Hydraulic Power Pack
Hydraulic & Pneumatic Systems: Ideal where pressure spikes are common.
Industrial Machinery: Pumps, compressors, and diesel engines.
Low/High Temperature Environments: Special oils allow for, e.g., low-temperature operations down to
−40°
Case Material: Stainless Steel (304 or 316).
Internal Components: Copper Alloy or 316 Stainless Steel.
Dial Sizes (Nominal): 1.5“, 2“, 2.5“, 4“, 6“.
