The VEGA VEGAPASS 81 is a bypass chamber for use with compatible VEGA level measurement instruments. It consists of a standpipe connected to the side of a vessel through two process fittings, allowing the liquid level in the chamber to track the level in the vessel. This arrangement enables continuous level measurement from outside the main vessel.
Key Features
- Measurement principle: External bypass level measurement using a compatible VEGA sensor
- Measuring range: Up to 4 m on the referenced product page
- Process temperature: -196°C to +450°C
- Process pressure: 0 to 205 bar
- Installation: Side-mounted communicating chamber with two process connections
- Sensor compatibility: Designed for use with compatible VEGA VEGAFLEX guided wave radar instruments
- Industrial design: Suitable for demanding temperature and pressure conditions
Applications
The VEGAPASS 81 is suitable for level monitoring in steam drums, chemical processing equipment, oil and gas facilities, power generation, and other industrial vessels where external level measurement is preferred. Confirm chamber dimensions, materials, process connections, and sensor compatibility for the specific application.
Why Choose VEGA VEGAPASS 81?
The VEGAPASS 81 enables external level measurement while keeping the sensor separate from the main vessel interior. Its bypass design supports applications where operating conditions make direct installation less convenient and where reliable vessel level monitoring is important.
1. What is the VEGA VEGAPASS 81?
It is a bypass chamber designed for external continuous level measurement with compatible VEGA level sensors.
2. How does the VEGAPASS 81 work?
The chamber is connected to the side of a vessel through two process fittings. The liquid level in the chamber follows the level in the main vessel, allowing an installed sensor to measure it externally.
3. Which sensor is used with the VEGAPASS 81?
It is designed for use with compatible VEGA VEGAFLEX guided wave radar sensors. Confirm the sensor model and configuration before ordering.
4. What is the maximum measuring range?
The referenced VEGA product page lists a measuring range of 4 m. Other chamber lengths or configurations should be confirmed with the manufacturer.
5. What process temperatures can the VEGAPASS 81 handle?
The published temperature range is -196°C to +450°C, depending on the selected configuration.
6. What is the maximum process pressure?
The product page lists process pressure from 0 to 205 bar. Confirm the pressure rating for the specific chamber, materials, and connections.
7. Can the VEGAPASS 81 be used in steam drum applications?
Yes. Bypass chambers are used for level monitoring in steam drums, but the complete assembly must be correctly selected for the operating temperature, pressure, and safety requirements.
8. What information is needed to select a VEGAPASS 81?
Provide the vessel operating pressure and temperature, required measuring length, process medium, connection specifications, material requirements, and the compatible VEGA sensor model.
9. Is the VEGAPASS 81 itself a radar transmitter?
No. The VEGAPASS 81 is the bypass chamber. A compatible level sensor, such as a suitable VEGAFLEX instrument, is required for electronic level measurement.
10. What industries use the VEGAPASS 81?
Typical applications include power generation, oil and gas, chemical processing, refining, and other industries requiring external vessel level measurement.
