Hydraulic Filter Accessories for Construction Equipment

Clogging Indicators, Oil Level Gauges and Filter Heads in the System

• Clogging indicators: monitoring of filter loading condition
• Oil level gauges: visual oil level control at the hydraulic tank
• Filter heads: connection base for filter housings and filter elements
• Additional components: system-dependent accessories for filter and reservoir assemblies

Differences exist in connection interface, indication principle, installation dimensions and design.

Clogging Indicators for Pressure, Differential Pressure and Vacuum

Depending on filter position, pressure, differential pressure or vacuum indicators are used.

Available as mechanical, electrical or combined versions. The decisive factor is compatibility with the existing filter assembly.

Incorrect indicators do not reflect the actual filter condition and lead to incorrect service intervals or missing signals.

Oil Level Gauges for Hydraulic Reservoirs

Oil level gauges provide visual monitoring of oil level at the hydraulic reservoir. Relevant factors are length, mounting dimensions, fastening type and design.

Depending on version, additional functions such as temperature indication may be integrated.

Filter Heads and Defined Connection Interfaces

Filter heads define connection interface, installation position and compatibility with filter components.

Differences in connection type, height or geometry result in incompatibility with existing components.

Connection Types, Designs and Indication Principles

• Connection types: metric, BSP (parallel pipe thread), NPT (tapered thread)
• Indication principle: mechanical, electrical or combined
• Design types: integrated, replaceable or standalone
• Installation positions: tank-mounted or filter-mounted

Hydraulic filter accessories are not universally interchangeable and must match the existing filter or reservoir assembly.

Typical Mismatches in Practice

• Clogging indicators: incorrect indication principle or unsuitable pressure range
• Oil level gauges: deviations in length or mounting pattern
• Filter heads: differences in connection interface or installation height

Mismatches become apparent during installation or operation.

System Compatibility Before Brand

The decisive factor is technical compatibility with the existing filter or reservoir assembly. Brand references are secondary.

Related Components and Subcategories

Direct subcategories include clogging indicators, oil level gauges and filter heads.

Hydraulic filter accessories are used together with hydraulic filter elements, pressure filters, return line filters and filler and breather filters.

Before Ordering

• Reference number
• Design and installation position
• Connection type and orientation
• Function within the assembly
• System compatibility