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The EO2 Cutting Ring is the critical sealing component within the innovative EO2 Functional Nut assembly. Engineered to meet the rigorous ISO 8434-1 and DIN 3870 standards, this system represents a significant advancement in bite-type fitting technology. The key differentiator is its integrated NBR (Nitrile) soft-seal ring, which works in tandem with the precision-cut metal ring to create a dual-sealing action. This design not only meets but exceeds the performance of traditional DIN 3861 standard cutting rings, providing an unparalleled barrier against leakage in high-pressure hydraulic and pneumatic systems.
Engineered for reliability in the most demanding applications, the Parker Ermeto EO2 system offers a direct and superior replacement for DIN 3861 components, ensuring enhanced system integrity and reduced maintenance.
Parker EO2 cutting ring is designed for EO-2 fittings system, in order to eliminate leakage in all fluid system. EO-2 ring is soft sealing ring, The sealing effect is pressure supported which makes the EO2 fitting suitable for high pressure applications.
EO-2 is a true metric design according to 24° tube connector standards such as: ISO 8434-1, DIN 2353 or DIN 3861. It covers all three series (LL, L and S) of the broad EO tube fitting program. EO-2 Dual Funtion Nut is consist of nut and eo2 ring.
Two types of Parker eo2 cutting rings, one is eo2 ring for functional nut; another one is for EO2-FORM Set soft sealing ring.
Unlike conventional single-metal-seal rings, the EO2 system utilizes a two-stage sealing mechanism. The hardened steel cutting ring makes a precise bite into the tube, providing a strong mechanical grip and pressure resistance. Simultaneously, the integrated NBR O-ring creates a resilient, conforming seal that compensates for minor surface imperfections and system vibrations. This combination ensures a leak-free connection even under fluctuating pressures and temperatures.
The EO2 Cutting Ring is designed as a direct upgrade for systems using DIN 3861 components. It fits seamlessly into existing assemblies that comply with ISO 8434-1/DIN 3870, allowing for easy retrofitting. The addition of the NBR seal transforms the connection from a metal-to-metal seal to a more forgiving and reliable elastomer-enhanced seal, dramatically improving leak prevention.
A major operational benefit is the foolproof installation process. The design provides clear visual feedback: as the nut is correctly tightened, the gap between the cutting ring and the nut face visibly closes. This feature minimizes human error, prevents under- or over-tightening, and ensures a perfect seal every time, reducing installation time and training costs.
High Pressure & Vibration Resistance: The design excels in high-pressure hydraulic systems and environments with significant pulse and vibration, such as mobile off-road equipment and industrial machinery.
Enhanced Material Compatibility: The NBR seal offers excellent resistance to a wide range of hydraulic oils, fuels, and greases. Optional FKM (Viton®) seals are available for applications involving extreme temperatures or aggressive fluids.
| Feature | Specification |
|---|---|
| System Standard | Complies with ISO 8434-1 / DIN 3870 for metric bite-type fittings. |
| Replaces | Directly supersedes DIN 3861 type cutting rings for superior performance. |
| Seal Type | Integrated NBR (Nitrile) soft-seal ring; FKM optional. |
| Primary Function | Provides a leak-proof, vibration-resistant seal in tube fittings and compression fittings. |
| Typical Applications | Hydraulic hose assemblies, high-pressure tubing, pneumatic systems, fluid power circuits in industrial, mobile, and marine equipment. |
The EO2 Cutting Ring is the critical sealing component within the innovative EO2 Functional Nut assembly. Engineered to meet the rigorous ISO 8434-1 and DIN 3870 standards, this system represents a significant advancement in bite-type fitting technology. The key differentiator is its integrated NBR (Nitrile) soft-seal ring, which works in tandem with the precision-cut metal ring to create a dual-sealing action. This design not only meets but exceeds the performance of traditional DIN 3861 standard cutting rings, providing an unparalleled barrier against leakage in high-pressure hydraulic and pneumatic systems.
Engineered for reliability in the most demanding applications, the Parker Ermeto EO2 system offers a direct and superior replacement for DIN 3861 components, ensuring enhanced system integrity and reduced maintenance.
Parker EO2 cutting ring is designed for EO-2 fittings system, in order to eliminate leakage in all fluid system. EO-2 ring is soft sealing ring, The sealing effect is pressure supported which makes the EO2 fitting suitable for high pressure applications.
EO-2 is a true metric design according to 24° tube connector standards such as: ISO 8434-1, DIN 2353 or DIN 3861. It covers all three series (LL, L and S) of the broad EO tube fitting program. EO-2 Dual Funtion Nut is consist of nut and eo2 ring.
Two types of Parker eo2 cutting rings, one is eo2 ring for functional nut; another one is for EO2-FORM Set soft sealing ring.
Unlike conventional single-metal-seal rings, the EO2 system utilizes a two-stage sealing mechanism. The hardened steel cutting ring makes a precise bite into the tube, providing a strong mechanical grip and pressure resistance. Simultaneously, the integrated NBR O-ring creates a resilient, conforming seal that compensates for minor surface imperfections and system vibrations. This combination ensures a leak-free connection even under fluctuating pressures and temperatures.
The EO2 Cutting Ring is designed as a direct upgrade for systems using DIN 3861 components. It fits seamlessly into existing assemblies that comply with ISO 8434-1/DIN 3870, allowing for easy retrofitting. The addition of the NBR seal transforms the connection from a metal-to-metal seal to a more forgiving and reliable elastomer-enhanced seal, dramatically improving leak prevention.
A major operational benefit is the foolproof installation process. The design provides clear visual feedback: as the nut is correctly tightened, the gap between the cutting ring and the nut face visibly closes. This feature minimizes human error, prevents under- or over-tightening, and ensures a perfect seal every time, reducing installation time and training costs.
High Pressure & Vibration Resistance: The design excels in high-pressure hydraulic systems and environments with significant pulse and vibration, such as mobile off-road equipment and industrial machinery.
Enhanced Material Compatibility: The NBR seal offers excellent resistance to a wide range of hydraulic oils, fuels, and greases. Optional FKM (Viton®) seals are available for applications involving extreme temperatures or aggressive fluids.
| Feature | Specification |
|---|---|
| System Standard | Complies with ISO 8434-1 / DIN 3870 for metric bite-type fittings. |
| Replaces | Directly supersedes DIN 3861 type cutting rings for superior performance. |
| Seal Type | Integrated NBR (Nitrile) soft-seal ring; FKM optional. |
| Primary Function | Provides a leak-proof, vibration-resistant seal in tube fittings and compression fittings. |
| Typical Applications | Hydraulic hose assemblies, high-pressure tubing, pneumatic systems, fluid power circuits in industrial, mobile, and marine equipment. |
