These flanges are also commonly referred to as
These flanges are comparable to other ISO flanges in that they seal with an O-Ring which is carried by a center-ring.
Whereas other ISO flange systems are connected with special clamps, ISO-Flanges are joined with bolts in through holes.
It is important to note, that ISO-F and ISO-K can be joined with a bolt-ring which slides over the standard ISO-K flange.
This bolt ring converts an ISO-K into an ISO-F with a rotable collar.
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