Add to Favorite Sellers About Us Contact Us View All ItemsStore Categories 01. Vacuum fitting KF ISO 02. Tri-Clamp fitting (CLE) 03. Digital Instrument 04. Tools & consumables 05. Fab Surplus Other KF25 flange Elbow 90 degree stainless steel 304 vacuum adapter DescriptionKF25 ElbowElbow 90 Degrees KF-25 Vacuum Fittings, ISO-KF Flange Size NW-25, Stainless SteelThese KF-25 90 degree elbow 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. They are made of corrosive resistant stainless steel.KF-25 Elbow 90 DegreesISO-KF Flange Size: NW-250Common Dimensions: A = 1.57 " (40 mm)Item Specifics Condition: New Brand: Bmotiontech Country of Manufacture: China MPN: VAC-Cone-KF40-KF16 Model: Conical reducer UPC: Does not apply About UsWe don't like to sell something of everything. We sell what we specialised. vacuum parts, semiconductor and solar fab equipment and digital equipment. We test and inspect each products before we send out. Zero defective is our goal. Fast Shipping is our commiment. Welcome any inqury and question © Copyright 2017 Bmotion Tech. All rights reserved.eCRATER Store Design byOn Apr-25-17 at 20:17:23 PDT, seller added the following information: