The ISOKF KF25 Stainless Steel 304 40mm Long Weld Stub Vacuum Flanges are welded KF25 flanges made from 304 stainless steel, designed for reliable KF25 vacuum connections. With a 40 mm long weld stub, these flanges provide a sturdy, weldin interface while maintaining the standard KF25 coupling for clamps and gaskets. Key benefits Durable 304 stainless steel construction offers corrosion resistance and cleanability in lab and industrial environments. Weld stub design provides a secure, permanent connection to a vessel or pipe, reducing leak paths and improving joint integrity. Standard ISOKF KF25 interface ensures compatibility with common KF25 clamps, gaskets, and components. 40 mm long weld stub delivers ample weld surface without creating excessive protrusion in compact assemblies. Suitable for vacuum applications requiring KF25 interfaces with welded connections. Key attributes Interface: KF25 (ISOKF) vacuum flange Material: Stainless steel 304 Length: 40 mm weld stub Compatibility: KF25 clamps and gaskets in standard KF25 vacuum systems Applications and use cases Welding into a stainless steel vacuum chamber or vessel to provide a KF25 inlet for a vacuum line, enabling connection to KF25 clamps. Extending a vacuum piping run by attaching the weld stub to a custom pipe or vessel and connecting to a KF25 valve, pump, or manifold via standard KF25 hardware. Integration into cleanroom equipment or glovebox setups that require KF25 vacuum connections with welded transitions.