Elesa+Ganter 111051-NP HCK.508-ZN-M12-NBR-PC-NP Oil Level Indicator

Technical Overview

The Elesa+Ganter 111051-NP HCK.508-ZN-M12-NBR-PC-NP oil level indicator is designed for direct visual monitoring of oil levels in industrial reservoirs and hydraulic systems. It shares the 508 mm hole centre distance and M12 fixing thread format with the protected version, but the NP configuration means it is supplied without transparent front protection.

This makes the model suitable for installations where the indicator is mounted in a protected location, where external impact risk is low, or where direct access to the polycarbonate tube is preferred. The transparent PC tubular window provides clear fluid level visibility for oil applications, helping operators quickly check reservoir status during routine inspections.

Materials and Functional Value

The Elesa+Ganter 111051-NP oil level indicator includes zinc-plated steel fastening hardware and NBR synthetic rubber O-rings. This combination is commonly selected for standard industrial oil monitoring applications where corrosion exposure is moderate and the main requirement is dependable level visibility.

The 508 mm format is particularly useful on larger tanks, hydraulic units and lubrication reservoirs. A longer viewing range gives maintenance teams more information at a glance, especially when minimum and maximum operating levels need to be marked or observed during filling, draining or commissioning.

When to Choose the NP Version

The NP version is a practical choice when the application does not require a front protective shield. It can be useful in enclosed machinery, internal panels or equipment where the indicator is not exposed to accidental knocks. For exposed machine surfaces, a protected version may be more appropriate.

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FAQ

What does NP mean in Elesa+Ganter 111051-NP?

NP means the indicator is supplied without transparent front protection.

Is this model suitable for oil tanks?

Yes. The PC tubular window and NBR seals make it suitable for standard oil level monitoring applications.

When should I choose NP instead of P?

Choose NP when the indicator is installed in a protected area or when front protection is not required. Choose P when the tube needs additional shielding.

What does the 508 mm size provide?

It provides a longer visual level range, which is useful for larger tanks and hydraulic reservoirs.

Can this indicator support maintenance planning?

Yes. It gives operators a fast visual reference, helping detect low oil levels, unexpected fluid loss or filling errors before they affect equipment performance.