Silo Monitoring

Keeping track of levels in silos, conveyors, or containers is crucial for efficient logistics, safe operations, and reduced downtime. Yet, manual level control is still common – despite posing occupational hazards and delivering unreliable results.

Level Switch Sweden offers a safe and proven alternative: Elniva diaphragm level switches.
Our level switches are used daily in Swedish industry to remotely monitor stock levels and prevent overfilling in everything from dryers to conveyors and silos.

How the Technology Behind Our Diaphragm Switches Works

Elniva level switches operate via a mechanical movement that activates a microswitch through a rubber diaphragm. When material presses against the diaphragm, the motion is transferred to the switch – triggering a signal to the operator or control system.

Each switch has a built-in pressure compensation system, ensuring reliable operation even with changes in air pressure inside the unit. Models with a compensation diaphragm are especially suited for installation inside silos where pressure balancing is required.

Wired Solution – High Durability and Easy Integration

Unlike more advanced electronic systems, Elniva uses a simple, wired principle that is both proven and robust. This provides:

  • Fast installation without the need for wireless infrastructure

  • Minimal risk of interference

  • Easy connection to relays, PLCs, or control systems via standardized microswitches (max 15A at 440V AC)

Seamless Integration into SCADA and Other Control Systems

Thanks to the simple binary signal principle, our switches are fully compatible with all common industrial control systems. Elniva is an excellent complementary safety solution for existing SCADA or ERP systems – particularly in applications where redundancy or independent signal paths are required.

Industry-Specific Solutions – From Agriculture to Heavy Industry

We offer several models tailored to different material types and applications:

  • NV14P – For heavier materials such as grain, pellets, coal, sand, granulates, etc.

  • NV14P-KM – With compensation diaphragm, ideal for internal mounting

  • NV10P – Compact model particularly suited for conveyors, for example as overfill protection

Our level switches are used in:

  • Agriculture and feed industry

  • Plastics and granulate industry

  • Building materials and cement

  • Energy and combustion

  • Transport and bulk handling

What Does a System Cost – and When Is It Worth the Investment?

The Elniva system is a cost-effective solution. Instead of expensive electronic systems requiring calibration, battery changes, and software maintenance, you get:

  • A mechanical solution with no need for calibration

  • Fewer operational interruptions and stable function for years

  • Very low total cost – even with multiple installation points

In many cases, the investment pays for itself after the first avoided downtime or prevented accident risk.

How to Choose the Right Elniva Switch – A Practical Buying Guide

  • Material type: Is it granulate, grain, pellets, sand, or powder?

  • Placement: Internal or external mounting?

  • Environment: Are there pressure variations or high dust levels?

  • Signal requirements: Should the switch provide simple contact or integrate into an automation system?

  • Safety level: Is IP65 required or is IP54 sufficient?

We are happy to help you choose the right model!
Contact us directly for advice or a quote.
info@levelswitchsweden.com | +46 (0)8 – 32 33 00

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