AORFS Fittings (K21)

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AORFS FITTINGS (K21)

Straight fittings with external thread and flat face seal

AORFS fittings (K21) have a flat seal with an O-ring. Fittings used in new Western construction and agricultural equipment. The fittings are very characteristic : they have a flat seal without any cone , and have a groove and a special sealing O-ring on the seal. The fittings fit ORFS (K41) fittings and create a connection with them. AORFS fittings with external thread matching K41 ( ORFS ) fittings. In Poland, this type of fitting is designated as K21. AORFS fittings, just like ORFS, are designed for high pressures. Fittings intended for crimping on high-pressure hydraulic hoses. We also offer individual ORFS O-rings ( these O-rings are thinner than standard metric or imperial ones )

ORFS connection type – a solution for the highest pressures

ORFS (O-Ring Face Seal) is a type of hydraulic connection designed specifically for operation in systems with very high pressure, providing exceptional tightness and reliability. Thanks to the use of a flat face with an embedded sealing ring (O-ring), ORFS connections perform perfectly in the most demanding applications.

Technical parameters of the fittings

thread type : external ORFS referred to as American
seal type : flat face
material : free-cutting steel or stainless steel
finish : anti-corrosion zinc plating
available thread sizes 9/16'' ORFS, 11/16'' ORFS, 13/16'' ORFS, 1/2'' ORFS, 1" ORFS, 1.3/16'' ORFS, 1.7/16'' ORFS, 1.11/16'' ORFS, 2" ORFS
application : for crimping hydraulic hoses
matching fitting : K41 ORFS