Common Dry Manometer - Core Functions, Applications & Key Features
A Common Dry Manometer is a widely used mechanical pressure gauge that operates without internal filling fluid (unlike liquid-filled manometers). It relies on a bourdon tube or diaphragm sensor to convert pressure into mechanical displacement, which is then displayed via a pointer on a dial. It is cost-effective, easy to maintain, and suitable for general-purpose pressure measurement scenarios.
1. Core Functions
Gauge Pressure MeasurementCore function: Precisely measures positive gauge pressure (relative to atmospheric pressure) in gas or liquid systems. Most models cover low to medium pressure ranges (e.g., 0–10 bar, 0–100 psi) with standard accuracy classes (e.g., 1.0, 1.6).
Real-Time Pressure DisplayThe high-contrast dial and pointer enable intuitive, real-time reading of pressure values, no power supply required (mechanical operation only).
Overpressure ProtectionEquipped with a built-in safety stop or bourdon tube overload structure to prevent damage from short-term overpressure (typically 120–150% of the full scale).
Easy Installation & CalibrationFeatures standard thread interfaces (NPT, BSP, G-thread) for quick mounting on pipelines, tanks, or equipment. Calibration can be done via a top or side adjustment screw for long-term accuracy.
2. Typical Applications
Industrial Pneumatics & Hydraulics
Air compressors, pneumatic tools, and hydraulic systems: Monitor system pressure to ensure stable operation and prevent overload.
Pipeline systems (water, gas, steam): Measure medium pressure for process control and leak detection (suitable for non-corrosive, non-viscous media).
HVAC & Building Services
Central air conditioning, ventilation systems, and boiler units: Track air or water pressure to optimize heating/cooling efficiency and system safety.
Water supply networks: Measure tap water pressure for residential or commercial buildings.
Automotive & Machinery Maintenance
Auto repair shops: Test tire pressure, engine oil pressure, or fuel system pressure (specialized dry manometers for automotive use).
Agricultural machinery: Monitor pressure in irrigation systems or hydraulic lifts.
General Purpose & Light Industry
Food and beverage processing (non-hygienic areas): Measure pressure in packaging machines or conveyor systems.
Laboratory equipment: Basic pressure measurement for non-critical experiments (not suitable for high-precision or vacuum applications).
