- A: 0.75 in / 19.05 mm
- B: 0.98 in / 25 mm
- C: 0.67 in / 17 mm
The flanges, or the vacuum flange fittings, are available in the following sizes KF10, KF-16, KF-25, KF-40, KF-50 with corresponding flange sizes NW-10, NW-16, NW-25, NW-40, NW-50.
The KF-50 to ¼ NPT female pipe thread adapters are made out of stainless steel and are used to connect the ISO-KF flange with the male pipe. The KF 50 to ¼ inch NPT-Female Adapter assemblies consist of two flanges, a centering ring, and an aluminum clamp. 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 vacuum seal.
Please refer to Recommended Products Section at the bottom of this page to choose corresponding clamps and rings for your KF The KF-50 to ¼ NPT Female Pipe Thread Adapter.
The KF to NPT Female Pipe Adapters are available in the following sizes:
NW 16 x 1/8 NPT
NW 16 x 1/4 NPT
NW 25 x 1/8 NPT
NW 25 x 1/4 NPT
NW 40 x 1/8 NPT
NW 40 x 1/4 NPT
NW 50 x 1/8 NPT
NW 50 x 1/4 NPT




Adapter KF-16 (QF) to 1/4 NPT-Male, Flange ISO-KF NW-16, Stainless Steel Hardware
Edwards nEXT930D Hybrid Bearing Compound Turbomolecular Vacuum Pump, 925 l/s, 200 CF (CF 10.0") Inlet, 500 Watts. PN: B8K200F00.
Split Retainer Ring, ISO 63, Stainless Steel
Edwards nEXT85D Turbomolecular High Vacuum Pump, 80 watts, NW40, KF40 Inlet, 47 l/s. PN: B8G210A01
Leybold Scrollvac-15 Plus Oil Free Dry Scroll Vacuum Pump with Gas Ballast, 1-phase 100-240 VAC. PN: 141015V10
Guardian Butyl Dry Box Gloves- Long 32″ Size 8"
Wholesale KF-40 Vacuum Bellows Hose, 20 Inch, Flexible Coupling, ISO-KF Flange Size NW-40, Stainless Steel
Oerlikon Leybold NEW Turbo.Drive TD-400 Mounting Kit for Bottom of SL-80 Turbo Pump. PN: 800110V0008
Glove box Gas Purification Column,Diameter8.6″(220mm),High17.7″(450mm) 230V 

