A Hydraulic ORS Fitting (O-Ring Seal), also known as SAE ORS / ORB fitting, is a high-performance hydraulic connector designed to deliver exceptional leak resistance in medium to high-pressure hydraulic systems. Unlike thread-sealing fittings, ORS fittings seal through an elastomer O-ring seated in a groove, while the threads provide mechanical strength only.

This design ensures reliable, repeatable sealing, even under pressure spikes, vibration, and temperature changes—making ORS fittings a preferred choice for modern hydraulic equipment where leakage control is critical.

Manufactured from high-strength carbon steel, stainless steel, or brass, Hydraulic ORS fittings are built for durability and long service life. Corrosion-resistant finishes such as zinc plating or nickel plating further enhance performance in harsh industrial environments.

ORS fittings are available in a wide range of configurations including straight, 45° elbow, 90° elbow, tee, reducer, and adaptor types, and are commonly used to connect pumps, valves, cylinders, hoses, and manifolds in compact hydraulic assemblies.

Key Benefits

Applications

Hydraulic ORS fittings are ideal for high-reliability hydraulic systems, ensuring clean operation, reduced maintenance, and consistent performance.