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Level Instrumentation
Level Switches
Level switches detect high, low or intermediate points in tanks, silos and pipes to start pumps, prevent overfill and protect against dry running. Seven Star LLC, an independent supplier in Muscat, supplies point level switches from VEGA, JUMO, ABB, Mobrey, Rosemount, SOR, Barksdale, GESTRA, Hydac, Magnetrol, Endress+Hauser, KOBOLD, Murphy and KROHNE to customers in Oman and the GCC.
Read the full category guide- 44 products
- 14 brands
Category guide
About Level Switches
Level switches detect high, low or intermediate points in tanks, silos and pipes to start pumps, prevent overfill and protect against dry running. Seven Star LLC, an independent supplier in Muscat, supplies point level switches from VEGA, JUMO, ABB, Mobrey, Rosemount, SOR, Barksdale, GESTRA, Hydac, Magnetrol, Endress+Hauser, KOBOLD, Murphy and KROHNE to customers in Oman and the GCC.
Types of level switch in this category
Vibrating fork switches such as the Endress+Hauser Liquiphant FTL51, Rosemount 2140 and 2160 wireless, KOBOLD NWS and Mobrey DMS detect liquids and solids. Capacitive switches like the VEGA VEGACAP 62, 64, 27 and 98 and VEGAPOINT 31 handle powders and conductive liquids. Float switches including the SOR 1510 and JUMO NESOS series, rotating paddle switches such as the Mobrey PLS, ultrasonic switches like the Magnetrol Echotel 961/962 and SOR 2700, and boiler level switches such as the GESTRA NRS complete the range.
How to select a level switch
Define the medium (liquid or solid), density, viscosity, temperature and pressure, and the switching function (high, low, overfill, dry run). Choose vibrating fork for most liquids and fine solids, float for clean liquids, capacitive for powders and adhesion, paddle for coarse solids. Specify connection, insertion length, output and hazardous area or SIL requirements.
Data needed for a quotation
Send the switch model, or medium, function, pressure, temperature, connection, length, output and quantity.
What to include in your inquiry
These details let us quote the right item the first time.
- Medium (liquid or solid) and its properties
- Tank height or measuring range
- Process pressure and temperature
- Preferred principle (radar, ultrasonic, DP, switch)
- Process connection and material
- Output signal and area classification
Missing some of them? Send what you have. A nameplate photo or an old part number is enough to start.
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Request a Quote for Level Switches
Looking for a specific model, part number or brand in Level Switches? Send us your requirements and quantities. Seven Star LLC sources genuine industrial equipment for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
Frequently Asked Questions
Which level switch suits most liquids?
A vibrating fork switch works with most liquids regardless of foam, flow or bubbles, and needs no calibration.
What level switch is used for powders?
Capacitive switches, vibrating rods or rotating paddle switches, depending on bulk density and particle size.
Can level switches be used for overfill protection?
Yes. Many vibrating fork and float switches are SIL rated or approved for overfill prevention.
How does a float switch work?
A float with a magnet rises and falls with the liquid and operates a reed switch or microswitch at the set level.
What should I send for a quotation?
The model, or medium, function, pressure, temperature, connection, insertion length, output, approvals and quantity.