These KF-25 Metal Hose Bellows Flex Coupling vacuum fittings follow ISO-KF standards and have a flange size of NW-25.
Various sizes for your choice (300mm/11.81 inch, 500mm/19.68 inch, 600mm/23.62 inch, 800mm/31.49 inch, 1000mm/39.37 inch, 1500mm/59.05 inch, 2000mm/78.74 inch,3000mm/118.11inch) to accommodate any application.
Description: These KF-25 Metal Hose Bellows Flex Coupling vacuum fittings follow ISO-KF standards and have a flange size of NW-25. They are unsheathed and butt welded. 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. Features: 1. Soft, flexible, easy to bend, vibration absorbing 2. It has already passed the helium leakage test Specifications: Model: KF25 Materials: 304 Stainless Steel Application: Vacuum Equipment The shipment will be arranged in 1-3 working days (not including customized product), and takes about another 3-9 working days to reach you.