KF-40 to 1.25" NPT Female Vacuum Fitting | LoCo Science

For connecting with a 1.25” male thread and a KF-40 flange, you’ll want the KF-40 to 1.25” NPT-Female adapter. The female thread fits securely with most 1.25” NPT-Male adapters. The KF-40 flange meets ISO-KF standards and fits with all NW/KF-40 flanges and fittings. Made with a quick flange design, connecting two flanges is convenient and hassle-free. The stainless steel KF-40 to 1.25” NPT-Female adapter will stand up to high temperatures and corrosion from chemicals. This adapter is commonly used in the assembly of frontline vacuum plumbing and process systems.