A U-Tube Manometer is a simple, accurate, and reliable instrument used for measuring pressure, vacuum, and differential pressure in liquids, gases, and air systems. It consists of a transparent U-shaped tube partially filled with a manometric liquid. When pressure is applied to one or both sides of the tube, the liquid level shifts, and the resulting difference in height is used to determine the pressure value.
Based on the principle of hydrostatic balance, U-Tube Manometers provide direct pressure measurement without the need for electrical power, moving parts, or complex mechanisms. Their high accuracy and simple design make them widely used in laboratories, HVAC systems, process industries, water treatment plants, chemical facilities, and industrial testing applications.
U-Tube Manometers are particularly suitable for low-pressure and differential pressure measurements where precision and reliability are critical.
Applications of U-Tube Manometer
- HVAC Systems
- Airflow and Ventilation Monitoring
- Clean Rooms
- Laboratory Testing
- Chemical Processing Plants
- Water and Wastewater Treatment Facilities
- Filter Pressure Drop Measurement
- Industrial Process Monitoring
- Furnace and Burner Systems
Features of U-Tube Manometer
- Simple and highly accurate pressure measurement
- No moving parts for maintenance-free operation
- Suitable for pressure, vacuum, and differential pressure applications
- Direct visual indication
- No external power supply required
- Durable and corrosion-resistant construction
- Easy installation and operation
- Long service life
Available Options
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Single Column and Differential Pressure Models
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Dual Scale Calibration
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Acrylic Protective Front Cover
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Customized Measuring Ranges
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Colored Manometric Fluids
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Stainless Steel Construction
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Calibration Certificate
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Customized Scale Markings
Specifications
| Parameter | Details |
|---|---|
| Product Name | U-Tube Manometer |
| Measuring Principle | Hydrostatic Pressure Measurement |
| Type | U-Shaped Liquid Column Manometer |
| Measuring Range | 0–100 mmWC to 0–3000 mmWC (Customized Ranges Available) |
| Accuracy | ±1% of Full Scale |
| Scale Type | Direct Reading Graduated Scale |
| Tube Material | Borosilicate Glass / Acrylic |
| Body Material | Aluminum, ABS, Powder-Coated Steel, SS |
| Manometric Fluid | Red Gauge Fluid, Mercury-Free Fluid, Water |
| Mounting Type | Wall Mounted / Panel Mounted |
| Process Media | Air, Gases, Non-Corrosive Fluids |
| Operating Temperature | 0°C to 80°C |
| Connection Size | 6 mm, 8 mm, 10 mm Hose Connection |
| Scale Units | mmWC, mmHg, Pa, kPa, Inches WC |
| Power Requirement | Not Required |
| Visibility | High Contrast Graduated Scale |
| Compliance | Industrial and Laboratory Standards |
Benefits
U-Tube Manometers offer a cost-effective and dependable solution for measuring low pressures, vacuum, and differential pressures with excellent accuracy. Their simple operating principle eliminates the need for external power or complex electronics, making them highly reliable in industrial and laboratory environments. With minimal maintenance requirements, clear visual indication, and long service life, U-Tube Manometers remain one of the most trusted instruments for pressure measurement applications.