O-Lok pipe fittings
Products
O-Lok® – ORFS couplings with high-pressure O-ring seal
In high-pressure systems, quality and tightness are crucial. At Otto Olsen you will find O-Lok® couplings developed for demanding hydraulic applications. We help you choose the right solution and deliver quickly from our warehouse in Skedsmokorset.
What are O-Lok® pipe couplings?
O-Lok® is a series of ORFS (O-Ring Face Seal) tube fittings designed to provide extremely reliable, vibration-resistant and leak-free connections in high-pressure hydraulic systems. The system utilizes an O-ring integrated into the face of the fitting, providing an effective, elastic seal that can withstand pressure shocks, temperature variations and dynamic loads.
Otto Olsen is an authorized Parker Distributor.
Otto Olsen is an authorized Parker Hannifin distributor in Norway and supplies a wide range of components such as tube fittings, hoses, couplings, valves and accessories. With one of Norway's largest warehouses of technical products, you get quick access to quality products and technical support when you need it.
Why choose O-Lok®?
The system combines the strength of metallic couplings with the flexibility of an elastic seal. The result is a robust, reliable solution with high resistance to leakage even under pressure shocks and vibration. O-Lok® provides lower maintenance costs, long service life and optimal safety in demanding hydraulic environments.
Explore related product lines
Otto Olsen offers a wide range of tube fittings. Click on the variants on the page to read more and find the right solution for your project.
Available variants
O-Lok® - features and benefits
- ORFS seal (O-Ring Face Seal) ensures optimal leak-free connection even at high pressures.
- Compatible with SAE J1453 and ISO 8434-3, and interchangeable with standard ORFS systems.
- High pressure performance – designed for operating pressures up to 600 bar (depending on dimension and material).
- Extreme vibration resistance thanks to flexible elastomer seal.
- Easy and repeatable assembly without the need for special tools.
- Material choices: Carbon steel with corrosion-resistant zinc-nickel coating or 316 stainless steel.
- Large product range: Straight, angle, T-pieces, transition nipples, swivels and special designs.
O-Lok® is used where systems are exposed to high pressures, vibrations and there is a requirement for maximum operational reliability:
- Mobile and industrial hydraulic systems
- Cranes, lifts and construction machinery
- Offshore and subsea technology
- Agriculture and heavy transport
- Energy and power transmission
- Factory hydraulics and test equipment
Contact us – we will help you make the right choice
Contact our product specialists for guidance or quotes on O-Lok® and other couplings in our range.
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Do you have any questions?
Send us a message or contact the department directly if you want help finding the solution that is right for you.