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The LDI INDUSTRIES G605-03-A-1 is a closed circuit liquid level sight gauge designed for monitoring fluid levels in sealed hydraulic and fluid power systems. It features a 1/2-20 UNF thread connection and a 1.5-inch sight length, giving technicians a direct visual indication of fluid level without opening the circuit. The aluminum housing keeps weight low while providing corrosion resistance in typical shop and industrial environments. A Buna-N seal ensures compatibility with common petroleum-based hydraulic fluids and lubricants. Licensed fluid power and industrial maintenance technicians install this gauge as part of routine reservoir instrumentation on hydraulic power units and lubrication systems.
This sight gauge is suited for closed circuit hydraulic reservoirs, gearboxes, and lubrication sumps where a quick visual fluid level check is required without system depressurization. The 3-inch length to center of base and 4.625-inch overall length make it compatible with standard reservoir boss configurations. It installs in applications where Buna-N seal materials are appropriate for the fluid media present. Both industrial maintenance professionals and fluid power system technicians encounter this gauge in light to medium duty hydraulic equipment.
Designed as an OEM-style replacement or new-installation sight gauge for closed circuit hydraulic reservoirs and lubrication sumps requiring a 1/2-20 UNF threaded connection and Buna-N seal media compatibility.
Installation is performed by licensed fluid power technicians or industrial maintenance professionals. Depressurize and de-energize the hydraulic system completely before removing or installing any sight gauge. Use appropriate thread sealant compatible with the system fluid and avoid over-tightening the aluminum housing into the reservoir boss. Verify Buna-N seal compatibility with the specific fluid media in the system before installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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