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DIN 3862 Double Cone Olives (also known as double conical compression rings or solderless tube fittings) are precision-engineered compression fittings designed to create the ultimate leak-free, vibration-resistant connection for tubing. As the industry-standard tube olive for securing DIN 73378 Polyamide (PA) tubes, they are the critical link in ensuring reliability within centralized lubrication systems, hydraulic lines, and fuel or oil circuits. Their superior metal-to-metal seal design guarantees long-term performance under the most demanding industrial conditions.
Design Features & Key Benefits
Unmatched, Reliable Seal: The core design utilizes two opposing conical surfaces. When tightened, the double cone olive is compressed, creating a permanent, high-integrity seal directly between the hardened olive and the PA tube, and simultaneously with the fitting body. This metal-to-metal sealing principle eliminates the need for thread sealants and prevents leaks.
Perfect for DIN 73378 PA / Nylon Tubes: Engineered specifically for the calibrated outside diameters of standardized Polyamide (Nylon) tubes, these olives grip securely without compromising tube integrity. This makes them the ideal nylon tube connector for lubrication systems.
Superior Vibration & Pull-Out Resistance: The radial deformation of the olive onto the tube creates a powerful mechanical lock. This ensures the connection remains secure against vibrations from machinery, presses, and mobile equipment, preventing failure.
Optimized for Lubrication Systems: As dedicated lubrication system compression fittings, they withstand the pressures and media (oils and greases) common in single-line, dual-line, and progressive centralized lubricators.
Reusable Fitting Body: While each olive is used once per tube end, the fitting port and nut can be reused with new olives, simplifying maintenance and system modifications.
| Parameter | Specification / Detail |
|---|---|
| Governing Standard | DIN 3862 |
| Primary Material | Case-Hardened Steel (Zinc-Plated for corrosion resistance). Brass and Stainless Steel (AISI 304/316) available. |
| Compatible Tube | DIN 73378 Polyamide Tubes (PA 12 / Nylon) – The Standard for Lubrication Lines. |
| Sealing Principle | Metal-to-Metal Seal (Double Cone Compression) |
| Common Sizes (Thread x Tube OD) | M8x1 for 4x0.85; M10x1 for 6x1.25 and 6x1.5 |
| Typical Application | Centralized Lubrication Systems, Hydraulic Lines, Fuel Line Connections, Coolant Circuits. |
Typical Applications
Centralized & Automated Lubrication Systems: The essential compression fitting for nylon tubes connecting lubricant supply lines to pumps, meters, injectors, and dividers.
Industrial Hydraulics: Reliable connections for gauge lines, drain lines, and control circuits.
Mobile & Off-Highway Equipment: Perfect as fuel line compression fittings and for hydraulic connections in construction and agricultural machinery due to extreme vibration resistance.
General Industrial Fluid Power: Used in pneumatic and coolant systems where a robust, reusable connection is required.
Why Choose DIN 3862 Double Cone Olives?
System Integrity: They provide the most secure method to connect DIN 73378 tubes, preventing leaks that lead to lubrication failure, equipment damage, and costly downtime.
Proven Standard: The DIN 3862 standard guarantees dimensional accuracy, material quality, and interoperable performance across components.
Total Cost Effectiveness: Their durability and reusability of fitting bodies reduce long-term maintenance parts inventory and labor costs.
For a secure, leak-proof connection in your lubrication system, specify DIN 3862 Double Cone Olives with your PA tubing. Contact us for technical support, sizing guides, and pricing.
DIN 3862 Double Cone Olives (also known as double conical compression rings or solderless tube fittings) are precision-engineered compression fittings designed to create the ultimate leak-free, vibration-resistant connection for tubing. As the industry-standard tube olive for securing DIN 73378 Polyamide (PA) tubes, they are the critical link in ensuring reliability within centralized lubrication systems, hydraulic lines, and fuel or oil circuits. Their superior metal-to-metal seal design guarantees long-term performance under the most demanding industrial conditions.
Design Features & Key Benefits
Unmatched, Reliable Seal: The core design utilizes two opposing conical surfaces. When tightened, the double cone olive is compressed, creating a permanent, high-integrity seal directly between the hardened olive and the PA tube, and simultaneously with the fitting body. This metal-to-metal sealing principle eliminates the need for thread sealants and prevents leaks.
Perfect for DIN 73378 PA / Nylon Tubes: Engineered specifically for the calibrated outside diameters of standardized Polyamide (Nylon) tubes, these olives grip securely without compromising tube integrity. This makes them the ideal nylon tube connector for lubrication systems.
Superior Vibration & Pull-Out Resistance: The radial deformation of the olive onto the tube creates a powerful mechanical lock. This ensures the connection remains secure against vibrations from machinery, presses, and mobile equipment, preventing failure.
Optimized for Lubrication Systems: As dedicated lubrication system compression fittings, they withstand the pressures and media (oils and greases) common in single-line, dual-line, and progressive centralized lubricators.
Reusable Fitting Body: While each olive is used once per tube end, the fitting port and nut can be reused with new olives, simplifying maintenance and system modifications.
| Parameter | Specification / Detail |
|---|---|
| Governing Standard | DIN 3862 |
| Primary Material | Case-Hardened Steel (Zinc-Plated for corrosion resistance). Brass and Stainless Steel (AISI 304/316) available. |
| Compatible Tube | DIN 73378 Polyamide Tubes (PA 12 / Nylon) – The Standard for Lubrication Lines. |
| Sealing Principle | Metal-to-Metal Seal (Double Cone Compression) |
| Common Sizes (Thread x Tube OD) | M8x1 for 4x0.85; M10x1 for 6x1.25 and 6x1.5 |
| Typical Application | Centralized Lubrication Systems, Hydraulic Lines, Fuel Line Connections, Coolant Circuits. |
Typical Applications
Centralized & Automated Lubrication Systems: The essential compression fitting for nylon tubes connecting lubricant supply lines to pumps, meters, injectors, and dividers.
Industrial Hydraulics: Reliable connections for gauge lines, drain lines, and control circuits.
Mobile & Off-Highway Equipment: Perfect as fuel line compression fittings and for hydraulic connections in construction and agricultural machinery due to extreme vibration resistance.
General Industrial Fluid Power: Used in pneumatic and coolant systems where a robust, reusable connection is required.
Why Choose DIN 3862 Double Cone Olives?
System Integrity: They provide the most secure method to connect DIN 73378 tubes, preventing leaks that lead to lubrication failure, equipment damage, and costly downtime.
Proven Standard: The DIN 3862 standard guarantees dimensional accuracy, material quality, and interoperable performance across components.
Total Cost Effectiveness: Their durability and reusability of fitting bodies reduce long-term maintenance parts inventory and labor costs.
For a secure, leak-proof connection in your lubrication system, specify DIN 3862 Double Cone Olives with your PA tubing. Contact us for technical support, sizing guides, and pricing.
