tradewithhk store KF-25 NW-25 Vacuum Center Ring 304 SS 1.575" or 40mm w/ O-ring (Lot of 2 pcs) KF25 to 1/4" Female NPT SS304Lot of 2pcsCentering Ring KF-25 Vacuum Fittings, ISO-KF Flange Size NW-25, Stainless Steel with O-ringThese KF-25 Centering Ring vacuum fittings follow ISO-KF standards and have a flange size of NW-25. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively.KF-25 Centering Ring with O-RingISO-KF Flange Size: NW-25 PaymentPlease pay via Paypal. Delivery detailsHong Kong to USA/UK/Canada Courier Delivery Days Handling time < USD 100 e-packet 10-14 days 1-2 Business days > USD 100 DHL 4 - 8 days 1-2 Business daysHong Kong to Russia Courier Delivery Days Handling time < USD 100DHL Gobal mail 14 - 30 days 1-2 Business days > USD 100Other Courier14 - 30 days1-2 Business daysOther locations will be handled in case by case basis. Terms of salesReturn acceptable if you receive a defective product. Please contact seller for details. About usGet-Trade-HK are specialized in Digital instrument & Vacuum component and semiconductor/solar capital equipment. Tailor Made vacuum component are welcomed. Please contact seller for details. Contact usSkype: tom_hp Engineered for professional eCRATER sellers！ Powered by SoldEazy