Robust Structure Pitot Tube Flowmeter Stainless Steel Differential Pressure Flow Meter
Price:
Negotiable
MOQ:
1Set
Delivery Time:
5-8 work days
Brand:
QINWEIYB
Product Description
Permanent Pressure Loss Minimal Average Velocity Tube Flowmeter
The permanent pressure loss of the constant velocity tube flowmeter is extremely small. By using a detection rod (constant velocity tube) inserted transversely into the pipeline, the fluid pressure at multiple points on the cross-section of the pipeline is measured simultaneously, thereby obtaining the average flow velocity of that cross-section and subsequently calculating the flow rate.
Outstanding Advantages
- Minimal Permanent Pressure Loss (Energy Saving King): This is its most prominent feature. Due to the small cross-section of the detection rod, it offers minimal resistance to the fluid, resulting in a permanent pressure loss of only 2% to 5% of the differential pressure value, which is far lower than the 40% to 80% of orifice plates. The long-term energy-saving effect is significant.
- Easy Installation: Only a hole needs to be drilled in the pipe, and then it can be inserted for welding or flange connection. No pipe cutting is required, making it particularly suitable for the installation and renovation of large-diameter pipes (DN200 and above) at a very low cost.
- Robust Structure, Maintenance-Free: With no moving parts and a streamlined design, it is less prone to fouling and clogging (compared to orifice plates), ensuring high reliability.
- Wide Rangeability: Typically, it can reach 10:1, which is superior to the 3:1 of orifice plates, making it suitable for applications with significant flow variations.
- Wide Applicability: It can measure gases, liquids, and steam, and is especially suitable for large air volumes, large pipe diameters, and low-pressure gases (such as flue gas, air conditioning supply air).
Typical application scenarios:
- Energy industry: Airflow measurement for power plant supply air, primary air, secondary air, and flue gas.
- HVAC: Airflow measurement in supply and return air ducts of large air conditioning systems.
- Petrochemical industry: Measurement of circulating water, air, and low-pressure gas in large-scale facilities.
- Metallurgical industry: Measurement of blast furnace gas, coke oven gas, and combustion-supporting air.
Summary of Comparison with Orifice Flowmeters
| Characteristics | Annubar Flowmeter | Standard Orifice Flowmeter |
|---|---|---|
| Principle | Multi-point velocity measurement, average pressure tapping | Central throttling, edge pressure tapping |
| Structure | One rod, insertable | One plate, flange clamping |
| Pressure loss | Very low (~3% ΔP) | High (40%-80% ΔP) |
| Installation | Simple (single-point opening), suitable for large diameters | Complex (requires paired flanges, pipe cutting) |
| Straight pipe section requirement | Very long (20D upstream and 5D downstream) | Relatively long (10D upstream and 5D downstream) |
| Accuracy | Moderate (±1% to 2%) | Higher (±0.5% to 1%) |
| Range ratio | Relatively wide (10:1) | Relatively narrow (3:1) |
| Cost (for large diameters) | Low | High (high cost of flanges and plates) |
| Low flow performance | Poor (signal too weak) | Better |
The Pitot tube flowmeter is a representative of the differential pressure flowmeter family that "wins by ingenuity".
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xi 'an Qinwei Instrument Factory (General Partnership Enterprise)
Location
No. 143, Sanqiao Street, Xi'an City, Shaanxi Province, China
Contact Person
Wang