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Brand: VEGA
VEGA VEGACAP 27 PTFE/PFA Capacitive Rod Level Switch to 4 m
Description
A fluoropolymer-insulated rod switch for adhesive and conductive liquids
The VEGACAP 27 is an adjustment-free capacitive point level switch for liquids. VEGA names overfill and dry-run protection for adhesive as well as conductive liquids as its typical applications, and the probe operates in liquids with a dielectric constant from 1.5. The wetted parts are fully PTFE or PFA insulated, the rod is up to 4 m long and the sheet gives -1 to +63 bar and -50 to +200 °C. The sheet lists a 1½-inch clamp as a process fitting option beside the threads.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | VEGACAP 27, capacitive rod electrode for level detection, relay (DPDT) |
| Sensor length | Up to 4 m (13.12 ft) |
| Process fitting | Thread from G1, 1 NPT; Clamp 1½” |
| Process pressure | -1…+63 bar (-100…+6300 kPa / -14.5…+914 psig) |
| Process temperature | -50…+200 °C (-58…+392 °F) |
| Ambient, storage, transport | -40…+80 °C (-40…+176 °F) |
| Operating voltage | 20…253 V AC 50/60 Hz; 20…72 V DC |
| Power consumption | 1…8 VA (AC); approx. 1.5 W (DC) |
| Switching voltage / current | Min. 10 mV, max. 253 V AC/DC; min. 10 µA, max. 3 A AC, 1 A DC |
| Breaking capacity | Min. 50 mW; max. 750 VA AC, 54 W DC |
| Switching delay | 0.7 s (on/off) |
| Wetted parts | Fully PTFE or PFA insulated |
| Housing | Plastic or aluminium, up to IP67 |
| Approval (as printed) | Overfill protection system acc. to Water Resources Act (WRA) |
Fluoropolymer insulation in practice
A PTFE or PFA skin keeps the conductive core of the rod away from aggressive liquids and lets sticky media slide off, which is why VEGA stresses an exact switching point even with strong buildup. Typical uses are acid and alkali day tanks, solvent and coating tanks and dosing vessels where a bare metal rod would corrode. The same rating that allows +200 °C also allows steam-cleaning excursions, but check the exact combination of temperature and pressure against the manufacturer’s derating curve.
Selecting and ordering
Compared with the VEGACAP 98, which is all-PP and unpressurised, the 27 handles pressure up to 63 bar and heat to 200 °C. Check the VEGA configurator for how it differs from the VEGACAP 64. Mounting needs no medium to adjust: set the mode with the DIL switch and the switching point with the potentiometer, and the signal lamp shows the status. The DPDT relay accepts 20 to 253 V AC or 20 to 72 V DC.
When you request a quotation, give the rod length, thread or clamp, medium and its dielectric constant, operating pressure and temperature, and supply. Confirm the complete order code, the PTFE or PFA choice and the approvals with VEGA before ordering, because the sheet refers to the online configurator for those details.
Related VEGA products: VEGA VEGACAP 62 Capacitive Rod Point Level Switch up to 6 m, VEGA VEGACAP 64 PTFE Insulated Capacitive Rod Level Switch, VEGA VEGACAP 65 Capacitive Cable Level Switch up to 32 m, VEGA VEGAPOINT 21 Compact Capacitive Point Level Switch, VEGA VEGACAL 64 FEP-Insulated Capacitive Rod Level Probe and VEGA VEGACAL 63 Capacitive Rod Level Probe.
Documents and quotation
The official VEGA VEGACAP 27 (relay DPDT) specification sheet (34672-EN, version 160112) is attached to this page for download and covers the technical data, dimensions and wiring summarised above.
To order, send the required version, process data and quantity and we will quote it. We supply from Muscat as an independent company; further level instrumentation is available on this site. Check approvals, materials and the full order code with the maker before committing to a purchase.
Datasheets & Documents
- Datasheet VEGA VEGACAP 27 Specification Sheet (34672-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.
FAQ
Questions about the VEGA VEGACAP 27 PTFE/PFA Capacitive Rod Level
Answers from our engineering team on installation, compatibility and integration.
01What is the VEGACAP 27 used for?
Overfill and dry-run protection in adhesive and conductive liquids.
02How is the rod insulated?
Fully PTFE or PFA insulated.
03What are the limits?
-1…+63 bar and -50…+200 °C, rod up to 4 m.
04Which process fittings are listed?
Thread from G1, 1 NPT, or Clamp 1½".
05What output does it have?
A relay (DPDT) with 0.7 s switching delay.
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