What is ISO 8434-3 and what is the latest version?
The title of ISO 8434-3 is metallic tube connections for fluid power and general use —
part 3: O-ring face seal connectors.
The first edition was released in 1995 and prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, connectors and similar products and components.
Current valid version is ISO 8434-3:2005, see below the cover page of ISO 8434-3 standard, and link from ISO website.
https://www.iso.org/search.html?q=ISO%208434-3&hPP=10&idx=all_en&p=0
ISO 8434-3 evolved from SAE J1453 (issued in 1987) Fitting--O-ring face seal, called ORFS fitting, this type connectors widely used in American.
What content does ISO 8434-3 specify?
ISO 8434-3 specifies the general and dimensional requirements for the design and performance of O-ring face seal connectors made of steel for tube outside diameters or hose inside diameters of 6 mm through 38 mm, inclusive.
If you want materials other than steel, it is fine and please inquire our customer service.
Does Winner have compatible product for ISO 8434-3?
Winner call this type connectors as ORFS(O-ring face seal ) adapter or adaptor or connector, and all of those connectors specified in ISO 8434-3 are available from Winner, and F is typically for identify ORFS end in the part no., such as straight union connectors (1F), elbow union connector (1F9), T union connector (AF), stud connector with stud end in accordance with ISO 6149-2(1FH-N), bulkhead connector(6F), elbow swivel stud with O-ring(2F9), ……See catalogue sheet for details, there are more than 33 series for customer to choice. [Link to Download catalogue]
Below are some typical O-ring face seal ORFS connector pictures.
Straight union
Elbow union
T union
Bulkhead
Non-adjustable end
Adjustable end
Swivel end
Swivel end
With NPT end
Adjustable end
Plug
Plug
Winner O-ring face seal ORFS connector tested in accordance with ISO 19879 and with higher performance exceeding ISO 8434-3.
The finish requirement in the ISO 8434-3 is 72 h neutral salt-spray test in accordance with ISO 9227 and no red rust, Winner parts far exceed the ISO 8434-3 requirement.
Below is ISO specification and Winner salt spray test picture.
Post time: Feb-07-2022