Accurate Smart Vortex Flowmeter Steam Gas Liquid Measurement KROHNE OPTISWIRL 4200 Vortex Flow Meter
The one vortex meter plants trust when steam is wet or the gas is dirty
In real factories steam isn’t perfect dry superheated – it’s often wet, or the pressure drops and it condenses. Normal vortex meters start reading wrong or give alarms. The OPTISWIRL 4200 has a special sensor that measures gross heat and compensates for wetness automatically. It also has built-in temperature and pressure sensors on bigger sizes so you get real mass flow without extra instruments. Refineries, chemical plants and district heating stations have been using them for years because they just keep giving good numbers even when conditions change.
- Gross heat calculation for wet steam – no more guessing
- Integrated temperature sensor (all sizes) and pressure on bigger ones
- Dual sensor version – two independent measurements in one body
- Redundancy mode – switches to backup sensor if one fails
- Big display you can read from the ladder
- Works on liquids and gases too – one meter for everything
- Flanged or sandwich version – fits tight spaces
| Sizes | DN15 – DN300 (½" – 12") |
| Pressure rating | up to PN100 / Class 600 |
| Temperature | -40 °C to +240 °C (higher with remote) |
| Accuracy liquids | ±0.75% |
| Accuracy gases/steam | ±1% |
| Output | 4–20 mA HART, pulse, status |
| Protection | IP66/67 |
- Steam distribution mains
- Boiler feed and condensate lines
- Compressed air systems
- Natural gas and biogas
- Chemical process gases
Q: Does it really measure wet steam?
A: Yes – the gross heat function compensates automatically.
Q: Do I need external temperature and pressure?
A: No – built-in on most versions.
Q: What if the sensor fails?
A: Dual sensor version switches to backup automatically.
Phone/WhatsApp/WeChat: +8615000725058
Email: edwardzhao@gbsxj.com
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.