- NW 40 KF40CLA
- Aluminum
The Quick Clamp KF-40 with Wing-Nut Assembly is used to connect vacuum plumbing and process systems in combination with vacuum pumps or vacuum components.
The Cast Aluminum Clamps KF-40 or NW-40 Clamp is used in conjunction with a certering ring with a fitted O-ring for mating KF flanges.

The KF 40 or NW 40 Clamps are available in the following sizes: NW 16, NW 25, NW 50
The AJVS KF 40 Vacuum Hardware Clamps are available in Aluminum or Aluminum-Nickel Plating.
KF Hardware (also referred to as NW) assemblies consist of two Flanges, a Center-Rings and an aluminum Clamp. Quick Clamps are assembled with wing nuts to insure ease of use over time without tools. A uniform application of pressure on the clamp insures a vacuum seal. The mating flange surfaces compress the O-Ring, which is held in place by a metal centering ring, to generate the vacuum seal.
AJVS.com Offers wide selection of Vacuum Hardware, Vacuum Fittings, KF fittings, KF Elbows, KF Tees, KF vacuum Hoses, Please click below to view more KF and NW Vacuum Fittings and NW orings

Quick Clamp KF-40 With Wing-Nut Assembly, NW-40 Aluminum, Also known as Hinge Clamps KF 40, KF40CLA
The Quick Clamp KF-40 with Wing-Nut Assembly is used to connect vacuum plumbing and process systems in combination with vacuum pumps or vacuum components.
The Cast Aluminum Clamps KF-40 or NW-40 Clamp is used in conjunction with a certering ring with a fitted O-ring for mating KF flanges.


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A&J Vacuum Services provides repairs on all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair and Mass Spectrometer repair. Our highly trained technicians will deliver the highest quality service and satisfaction.
We operate at our own full service repair facility which allows us to quickly and economically perform all repairs in a timely manner. Our advandced machinery enables us to handle all facets of the service and repair process. AJVS utilizes industry standard vibration analysis equipment and advanced testing equipment to troubleshoot and minimize all equipment failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.