Elesa+Ganter 111031-NP HCK.254-ZN-M12-NBR-PC-NP Oil Level Indicator

The Elesa+Ganter 111031-NP HCK.254-ZN-M12-NBR-PC-NP oil level indicator is a column-style visual level gauge developed for monitoring oil levels in hydraulic and lubrication systems. It keeps the same HCK.254 dimensional format, including 254 mm hole centre distance, M12 thread, 291 mm overall length and 198 mm level visibility, but it is supplied without front protection.

Elesa+Ganter 111031-NP Oil Level Indicator Technical Characteristics

This model combines zinc-plated steel fastening components, an NBR synthetic rubber O-ring and a transparent polycarbonate level tube. The “NP” suffix means “without protection”, making the viewing tube directly visible and accessible. This can be useful in protected machine areas where impact risk is low and cleaning access is a priority.

Application Areas

The 111031-NP model is commonly relevant for hydraulic units, oil tanks, machine lubrication systems, industrial automation equipment and service-friendly installations. Since the indicator allows operators to check the oil level at a glance, it supports routine maintenance, inspection planning and safer machine operation.

When to Choose the NP Version

The NP execution can be a practical option when the indicator is installed inside a cabinet, behind a machine cover or in another low-risk location. Without the additional protection strip, the sight line is simple and direct. However, if the indicator may be exposed to accidental contact, chips, tools or external impact, the protected “P” version may be the better choice.

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Elesa+Ganter 111031-NP Oil Level Indicator FAQ

What does NP mean in HCK.254-ZN-M12-NBR-PC-NP?

NP means the indicator is supplied without transparent front protection.

Is this oil level indicator still durable without front protection?

Yes, it is designed as an industrial level indicator, but the installation location should be protected from impact and mechanical damage.

What fluid is the PC tube intended for?

The polycarbonate transparent tube is generally intended for oil applications.

What is the main difference between 111031 and 111031-NP?

Both share the same main dimensions and material family, but 111031 includes front protection, while 111031-NP does not.

Can this model help with preventive maintenance?

Yes. A clear oil level reading helps maintenance teams detect low levels early and avoid unnecessary equipment downtime.