The trapped O-ring centering ring is externally centered on the outside diameter of the small flange. The seal is pressed into a radius on the inside of the centering ring so that there are no gaps on the vacuum side. External centering allows the same ring to be used for two consecutive standard-rated widths (such as KF DN 10/16). This also makes transitional centering rings unnecessary.
Small Flange KF made of PBT (not wetted)
Sealing ring made of FKM
Size: A = 32mm, B = 30.1mm, C = 27.7mm
Package Dimensions: 1.97" L x 1.97" W x 1.57" H
Warning: These products can expose you to chemicals including Antimony Oxide (Antimony trioxide), which is known to the State of California to cause cancer, Di-n-butyl Phthalate (DBP), which is known to the State of California to cause birth defects or other reproductive harm, and Lead and Lead Compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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No return will be accepted by the seller for any reason without prior written authorization within 30 days of product shipment date. Returns will be accepted only if products are in new, unused, resalable condition in the original packaging, and accompanied by a Health and Safety Declaration as regards potential contamination with hazardous materials due to customer use of the product. The manufacturer reserves the right to assess a 25 percent restocking fee at their discretion. All shipping charges remain payable. This manufacturer assesses order cancellation fees if a submitted order is cancelled prior to shipment.