Product Overview
The venturi tube is ISO 5167-4 a differential-pressure flow meter designed to international standards; it measures flow from the pressure difference created as the fluid passes through the narrowed throat.
With a very high pressure recovery of over 85%, pressure loss is minimized and stable long-term measurement is possible. Daehan Instruments venturi tubes offer solutions optimized for a wide range of industrial sites, built on 35 years of expertise.
Key Features
High accuracy
High measurement accuracy of ยฑ0.5% to ยฑ1.0%
Minimum pressure loss
Energy savings with over 85% pressure recovery
Low Maintenance
No moving parts for semi-permanent service
Wide Range
Turndown ratio of 10:1 or more
Short straight run
Short installation requirement: 10D upstream, 5D downstream
Robust Construction
Stable operation even at high temperature and pressure
Technical Specifications
| Item | Specification |
|---|---|
| Applicable Standards | ISO 5167-4, ASME MFC-3M |
| Pipe Size | DN50 ~ DN3000 (2" ~ 120") |
| Beta Ratio (ฮฒ) | 0.3 ~ 0.75 |
| Accuracy | ยฑ0.5% to ยฑ1.0% (after calibration) |
| Pressure Recovery | Over 85% |
| Reynolds Number Range | 2ร10โต ~ 2ร10โถ |
| Materials |
- Body: Carbon Steel, SUS304, SUS316L - Throat: SUS316L, Hastelloy C, Monel |
| Connections | Flange (RF, RTJ), Weld End, Hub Connection |
| Pressure rating | ANSI 150# ~ 2500# |
| Temperature range | -200ยฐC ~ +600ยฐC |
Applications
โก Power Plants
- Feedwater flow measurement
- Steam flow measurement
- Cooling water circulation systems
๐ญ Petrochemical
- Feedstock supply lines
- Product transfer lines
- Process control systems
๐ง Water & Wastewater
- High-capacity water supply
- Sewage treatment plants
- Water management systems
๐ฅ Natural Gas
- Gas supply lines
- Pressure regulating stations
- Metering systems
Product Catalog
๐ฅ Venturi Tube Technical Documents
Download the catalog with detailed specifications, selection guide and installation instructions.
๐ Download Catalog (PDF)๐ก Related Resources
Technical Support
๐ Contact
Need technical advice on venturi tube selection and specifications?
Daehan Instruments engineers are ready to help.
Technical Support
๐ 031-357-8431 (ext. 2)
โ๏ธ tech@dhinst.co.kr
๐ง Service Support
- โ On-site technical support
- โ Flow meter selection consulting
- โ Installation and commissioning support
- โ Calibration services
- โ Maintenance training