Elesa+Ganter 11011 HCFE.21-M26x1.5 Oil Level Sight Glass
The Elesa+Ganter 11011 HCFE.21-M26x1.5 oil level sight glass is a compact visual inspection component used in tanks, reservoirs, and hydraulic assemblies where fluid presence and oil level need to be checked quickly. It is a straightforward product, yet it plays an important role in preventive maintenance because it allows operators to verify fluid condition and level without disassembling equipment.
Elesa+Ganter 11011 What Is the HCFE.21-M26x1.5?
This model is an oil level sight glass made from transparent polyamide-based technopolymer. It is designed for direct mounting into a threaded opening with an M26x1.5 thread. The 11011 code corresponds to the HCFE.21-M26x1.5 execution, which is part of the HCFE family used in hydraulic and lubrication systems.
Technical Specifications
The product uses a transparent PA-T technopolymer body and an NBR synthetic rubber packing ring. Its maximum continuous working temperature is 100°C. According to the technical data table, the 11011 version has M26x1.5 threading with dimensional values listed as A 13, B 19.5, D 31, d 25, and spanner size s 26.5. The recommended tightening torque range is 6 to 8 Nm, with a reference tightening torque value of 9 Nm shown in the table.
Why This Product Matters in Maintenance
In many machines, the simplest components often prevent the biggest problems. A sight glass like the HCFE.21-M26x1.5 makes it easier to spot low oil levels, contamination, or unusual fluid appearance before those issues become expensive failures. It is especially useful on compact reservoirs where dipsticks are less convenient or where fast visual inspection is preferred during daily checks.
Application Notes
This model should not be used with alcohol or detergents containing alcohol, as the material guidance specifically warns against that kind of contact. For tanks with wall thickness below 5 mm, a brass GH nut is listed as an accessory on request. That can help when adapting the sight glass to thinner reservoir walls.
Elesa+Ganter 11011 FAQ
What thread size does the 11011 model use?
The 11011 version uses an M26x1.5 thread, which is part of its full product designation HCFE.21-M26x1.5.
What material is the sight glass made from?
It is made from transparent polyamide-based technopolymer, with an NBR synthetic rubber packing ring for sealing.
What is the maximum continuous working temperature?
The maximum continuous working temperature is 100°C.
Can it be used with all industrial fluids?
Not automatically. The technical information advises avoiding alcohol or detergents containing alcohol, and recommends checking suitability for fluids with special additives.
Why is tightening torque important for this part?
The specified tightening torque helps maintain proper sealing while keeping the packing ring correctly positioned. Over-tightening or under-tightening can reduce performance in service.
Elesa+Ganter 11011 For more information about Elesa+Ganter, it helps to review the wider range of hydraulic inspection and reservoir accessories.