Seal-Lok O-ring Face Seal Hydraulic Hose Fittings

Parker’s Seal-Lok O-Ring Face Seal Hydraulic Hose Fittings and Adapters ( also known as ORFS) are valued across many markets for excellent leak protection and unlimited reusability*. Parker’s patented captive O-ring groove (CORG) design guarantees optimal sealing and ensures O-ring retention before the final assembly. ORFS meet or exceed the requirements of both SAE J1453 and ISO 8434-3 and have international acceptance.

The Hope Group is an authorized distributor for Parker ORFS and can be a resource for you in the selection and application of Parker components.

How do O-ring Face Seal Hydraulic Hose Fittings work?

The Parker Seal-Lok tube fitting consists of a nut, a fitting body, an O-ring (Trap-Seal), and a sleeve. Because of the flat face design, the holding control in these types of fittings is attained by a flat-faced flange at the end of the tube. When we tighten the nut onto the fitting body, the O-ring is compressed between the body and flat face of the tube flange. As a result, a tight, positive seal is formed.