Orifice Plate Flowmeter
The Orifice Plate Flowmeter is a differential pressure flow instrument based on the throttling principle. It consists of a standard orifice plate, pressure tapping device, and differential pressure transmitter. Flow is calculated by measuring the differential pressure generated when fluid flows through the orifice plate. It is suitable for single-phase fluids such as gas, liquid, and steam. With features including simple structure, low cost, and high standardization, it is one of the most widely used flowmeters in industrial measurement.
Key Features of The Orifice Plate Flowmeter
🌡️ Wide Operating Range
Supports extreme conditions: -50℃ to +550℃ temperature range and 0.25MPa to 32MPa high-pressure applications.
🔧 Robust Construction
Simple and durable design with no moving parts ensures long service life and minimal maintenance requirements.
📏 Versatile Application
Wide pipe diameter range (DN25-DN3000) with flexible pressure tapping methods for various industrial conditions.
🎯 High Accuracy
Measurement accuracy of ±0.5%~±1.0% with repeatability better than 0.2% and stable linearity within rated flow range.
🔬 Material Flexibility
Orifice plate materials can be customized based on media properties to suit different fluid characteristics.
💧 Broad Media Compatibility
Suitable for measuring water, steam, air, natural gas, and various single-phase clean fluids.
📡 Smart Integration
Supports 4-20mA analog output, pulse signals, RS485 communication with Modbus protocol for remote monitoring and system integration.
Technical Specifications of The Orifice Plate Flowmeter
| Category | Parameter Details |
|---|---|
| Nominal Diameter | DN25 ~ 3000mm |
| Accuracy Class | ±0.5%, ±1.0%, ±1.5% |
| Operating Temperature | -50°C < t < 550°C |
| Body Material | Carbon Steel, Stainless Steel |
| Measured Media | Liquid, Gas, Steam |
| Turndown Ratio | 1:10; 1:15 |
| Nominal Pressure | 0.25MPa ≤ PN ≤ 32MPa |
| Pressure Tapping Method | Flange Tapping, Corner Tapping |
| Output Signal | 4~20mA |
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