ISO 320 Centering Ring Aluminum with Viton O-Ring, NW-320 Vacuum Flange Size, Typically Used With 12 Inch O.D. (304.8 mm) Tubing
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These ISO DN 320 centering rings are made of aluminum with durable Viton® (FPM) rubber O-rings and are used to seal both ISO-K and ISO-F vacuum flanges. These centering rings follow vacuum technology standards as described in DIN 28404 and ISO 1609. The centering ring which contains a rubber elastomeric O-ring forms the vacuum seal between the two mating ISO-K or ISO-F flange faces. ISO-K fittings are quick to assemble using claw clamps (please see figure - click to enlarge) and can be connected together in any orientation. The claw clamp hooks into a ridged groove in the back side of the ISO-K flange. ISO-F fixed flange vacuum fittings are different and have a bolt circle where bolts align the two flanges. These ISO 320 centering rings are commonly used to build process vacuum plumbing and systems for industrial standard and high vacuum applications. The ISO standard sizes for large LF flanges are ISO-F and ISO-K DN 63, 80, 100, 160, 200, 250, 320, 400, 500, 630, 800, 1000. These vacuum fittings are made with inner and outer rings of Aluminum 6082 with FPM rubber O-ring material.
ISO DN 320 Centering Ring, For Sealing of NW-320 Vacuum Flanges, Aluminum with Viton® O-Ring (FPM)
ISO-LF Flange Size: NW-320
Common Dimensions:
A = 12.52" (318mm)
B = 0.22" (5.60mm)
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