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Brand: VEGA
VEGA VEGASWING 66 Vibrating Level Switch -196 to +450 °C
Description
The vibrating switch for cryogenic and high-temperature liquids
The VEGASWING 66 is the extreme-service member of VEGA’s vibrating level switches: a universal switch for all liquids with process temperatures from -196 to +450 °C and pressures up to 160 bar, in compact version or with tube extension. VEGA says it is used as empty or full detector in vessels and steam generators. An inductive drive energises the 40 mm tuning fork and wetted parts are 316L stainless steel and Inconel 718. The sheet covers the NPN/PNP transistor version, and the family also has relay and two-wire versions.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGASWING 66, vibrating level switch for extreme process conditions |
| Process pressure | -1…+160 bar (-100…+16000 kPa) |
| Process temperature | -196…+450 °C (-321…+842 °F) |
| Viscosity, dynamic | 0.1…1000 mPa·s |
| Density | 0.7…2.5 g/cm³; 0.47…2.5 g/cm³ optional |
| Ambient temperature | -40…+70 °C |
| Hysteresis | Approx. 2 mm with vertical installation |
| Process fitting | Thread from G1, 1 NPT; flanges |
| Operating voltage | 10…55 V DC; max. 0.5 W; load current < 400 mA |
| SIL qualification | Optionally SIL2 (SIL3 with homogeneous redundancy) |
| Wetted parts | 316L stainless steel and Inconel 718 |
| Housing | Plastic, stainless steel or aluminium, up to IP67 |
Cryogenic and hot duty
At -196 °C the switch serves liquefied gases such as nitrogen, and at +450 °C it serves heat-transfer oils and steam drums where a float or capacitance switch would fail. The product information lists the tube length as 260 to 3000 mm and says all VEGASWING electronics are qualified for overfill and dry-run protection to IEC 61508/61511. For extremely hot media the process fitting and sealing details change, so the configurator should be checked for the fitting on your vessel.
Installation notes
The mounting rules for the VEGASWING series apply: place the fork at the height of the desired switching point, orient the fork edge parallel to flow, keep out of the filling stream, and do not use an overly long tube where an agitator exists. A flanged connection is typical at these pressures. Provide your medium, temperature, pressure, tube length, fitting and electrical output when requesting a quote, and confirm any SIL or Ex requirement with the manufacturer.
At the extremes of temperature the nozzle needs attention: a cryogenic vessel with a long cold neck and a hot oil system with insulation both mean the housing must remain in its ambient range of -40 to +70 °C, so insulation and any temperature-adapter extension should be agreed with the manufacturer. The Inconel 718 fork gives corrosion and strength at high temperature, and the instrument is stated to be unaffected by product properties, which makes it a robust alternative to float switches in steam drums.
Documents and quotation
The official VEGA VEGASWING 66 (transistor NPN/PNP) specification sheet (44274-EN, version 190926) is attached to this page for download and covers the technical data, dimensions and wiring summarised above.
Your enquiry should state the process connection, medium, pressure and temperature, signal and approvals needed. Seven Star LLC, an independent Muscat supplier, will then quote it; see also our level instrumentation range. Verify the full configuration against the manufacturer’s documents before ordering.
Datasheets & Documents
- Datasheet VEGA VEGASWING 66 Specification Sheet (44274-EN) Download
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About brand
VEGA is a German maker of level and pressure instruments. Bruno Grieshaber founded the company in 1959 in Triberg in the Black Forest, and it has been based in Schiltach since 1975, still family owned as VEGA Grieshaber KG. VEGA is best known for radar level sensors: it introduced the first two-wire radar level sensor in 1997 and the first 80 GHz radar sensor for bulk solids, the VEGAPULS 69, in 2015.
Seven Star LLC is an independent supplier listing VEGA radar and guided wave radar transmitters, point level switches, pressure transmitters and signal conditioning instruments for buyers in Oman and the GCC. Sensors are matched from the product code on the type label.
VEGA at a glance
| Origin | Founded by Bruno Grieshaber in 1959 in Triberg, Germany |
|---|---|
| Headquarters | Schiltach, Black Forest, Germany (since 1975) |
| Ownership | Family-owned company: VEGA Grieshaber KG |
| Milestones | First two-wire radar level sensor (1997), first 80 GHz radar for bulk solids, VEGAPULS 69 (2015), VEGAPULS 6X single radar platform for liquids and solids |
| Product families | VEGAPULS radar, VEGAFLEX guided wave radar, VEGASWING and VEGAPOINT switches, VEGACAL capacitive probes, VEGABAR and VEGADIF pressure, VEGAMET and VEGADIS signal conditioning |
VEGA sensor and instrument series
| Series | Type | Typical use |
|---|---|---|
| VEGAPULS 6X, VEGAPULS 69, VEGAPULS 64 | Process radar level transmitters (80 GHz) | Storage and process tanks, reactors with agitators, silos and bulk solids |
| VEGAPULS 11, 21, 31, 42 | Compact radar sensors | Water and wastewater, simple storage tanks; VEGAPULS 42 with IO-Link for machine integration |
| VEGAPULS C 21, C 11, C 22, C 23 | Radar sensors with fixed cable, IP68 | Wet wells, pumping stations, open channels and river levels |
| VEGAFLEX 81, 82, 83, 86 | Guided wave radar (TDR) | Level and interface in liquids, bulk solids, hygienic and high-temperature or high-pressure service (VEGAFLEX 86) |
| VEGASWING 61, 63, VEGAPOINT 21 | Vibrating and capacitive point level switches | Overfill protection, dry-run protection and high or low level alarms |
| VEGACAL 62 to VEGACAL 67 | Capacitive rod and cable probes | Point and continuous level in solids and conductive or adhesive liquids |
| VEGABAR 82, 83, 28, 29, 38 | Pressure transmitters, ceramic or metallic cell | Process pressure and hydrostatic level; compact 18/19 and 28/29/38 versions for utilities |
| VEGADIF 85 | Differential pressure transmitter | DP flow, filter monitoring and level in pressurised vessels |
| VEGAMET 841, VEGADIS 176 | Controller and loop display | Level display, pump control and remote indication of 4-20 mA signals |
Where VEGA instruments are used
VEGA radar sensors measure level in crude oil and product tanks, separators, chemical reactors, cement and aggregate silos, grain stores and water reservoirs. Compact cable radars are widely used in wastewater pumping stations and flood monitoring. Because 80 GHz radar focuses a narrow beam, it can measure past internal structures in a tank, and it is not affected by the temperature, pressure or vapour above the product, which suits hot Gulf storage tanks.
Ordering VEGA instruments: what we need
The product code on the type label (for example PS64.XXXXXXX) fixes the measuring range, antenna or probe, process connection, electronics and approvals. Send it with the serial number. For a new measurement add the medium and its dielectric constant if known, tank or silo height and internals, process pressure and temperature, process connection, output (4-20 mA HART, PROFIBUS PA, Modbus or IO-Link), and any hazardous-area or overfill protection approval required.
Facts checked against VEGA company and product information, October 2026.
Browse VEGA products by category: Level Transmitter, Pressure Instrumentation, Controllers and Data Acquisition.
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Frequently Asked Questions
What temperature range does the VEGASWING 66 cover?
-196 to +450 °C.
What is the maximum pressure?
160 bar.
What is it made of?
316L stainless steel and Inconel 718 wetted parts.
Is SIL possible?
The sheet states optional SIL2, with homogeneous redundancy up to SIL3.
What viscosity can it handle?
0.1 to 1000 mPa·s.
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