O-ring face seal fittings, also known as ORFS fittings, are a type of hydraulic tube fitting that uses an o-ring compressed between two flat metal faces to create a high-pressure seal. They are designed for construction, oil and gas, mining, and other heavy-duty applications.

The male fitting has an o-ring groove in the flat face, while the female fitting has a flat face. When assembled, the o-ring is compressed between the two flat faces, creating a leak-tight seal that can handle extremely high pressures up to 6,000 PSI.

O-ring face seal fittings provide excellent vibration resistance, reusability, and ease of assembly/disassembly for maintenance. They are leak-free, high-pressure rated, and eliminate leaks caused by variations in assembly procedures.

Industries that commonly use o-ring face seal tube fittings include construction equipment, agricultural machinery, oil and gas, mining, industrial manufacturing, and transportation.

Yes, a key advantage of o-ring face seal fittings is that they can be easily disassembled and reassembled in the field, allowing replacement of the o-ring or the entire fitting assembly.

The fittings connect tubing by silver brazing the fitting body to the tube end. The male and female threaded components are then assembled, compressing the o-ring face seal.

Yes, o-ring face seal fittings are designed to be reusable. The o-ring can be replaced when it shows signs of wear or damage.

The SAE J1453 standard defines requirements for o-ring face seal hydraulic tube fittings for off-road construction machinery.

While basic hand tools can be used, it is recommended to use proper torque wrenches and assembly lubricants/sealants to ensure proper make-up torque and prevent galling of threads.

Major hydraulic fitting manufacturers offer complete lines of o-ring face seal fittings, including fitting bodies, nuts, crosses, adapters, and replacement o-rings for a range of tube sizes.