90° KF (QF) Long Radius Elbows

We fabricate these KF (QF) elbows for HV systems from tubing and KF flanges. The KF (QF) flange is used for through- or foreline vacuum plumbing and for simple HV chamber ports.

KF Elbows Feature:

  • Available in 304L stainless steel or aluminum 6061-T6 (miter elbows only)
  • Radius or miter design
  • Common lengths and tube diameters listed
Flange Size Flange Type Dim A Weight
KF16 Stainless Steel 68.6 0.22
KF25 Stainless Steel 92.5 0.34
KF40 Stainless Steel 130.1 0.45
KF50 Stainless Steel 140.2 0.68


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