Welcome to the Kurt J. Lesker Company.  

Sign In | Register

Current Region: International (Change) | Contact Us |   RSS   Twitter   LinkedIn   YouTube

Close

Please select your country or region to be
directed to the appropriate Lesker site.

Flanges & Components > KF (QF) Flanges & Components > Elbows

180° KF (QF) Returns

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 (miter elbows only)
  • Radius or miter design
  • Common lengths and tube diameters listed; contact us with your specific requirements

NOTE: These flanges are identical to the ISO NW flange standard. While these flanges are compatible with those made by European manufacturers, the tube diameter listed is in inches.

Dimensional Drawings


VacuCad Logo Got VacuCADSM?[Signup or login for free engineering files] | Problems downloading? [Visit our FAQ]

Ordering Table

(Click column headers to sort data)
Flange
Size
Flange
Type
Dim
A
Dim
B
Weight
lbs
Manual PartNo Price Add Item
VacuCADSM
KF16 Stainless Steel 1.67 2.25 1
--
QF16-075E180 $67.00
(please login)
KF25 Stainless Steel 2.17 3 1
--
QF25-100E180 $73.00
(please login)
KF40 Stainless Steel 3.17 4.5 1
--
QF40-150E180 $93.00
(please login)
KF50 Stainless Steel 4.17 6 1.5
--
QF50-200E180 $124.00
(please login)

Accessories Table

Accessories Table

Description For Per Package Weight lbs (kg) Manual PartNo Price Add Item
VacuCADSM
Centering Ring
(SS with Fluorocarbon O-Ring)
KF10 Flanges
1
1/4 (0.11)
--
QF10-050-SRV $6.20
(please login)
Lever Clamps (Aluminum)
KF10, KF16 Flanges
1
1/2 (0.22)
--
QF16-075-CHA $31.05
N/A
Cast Clamps (SS)
KF10, KF16 Flanges
1
3/4 (0.34)
--
QF16-075-CS $44.40
(please login)
Centering Ring
(SS with Fluorocarbon O-Ring)
KF16 Flanges
1
1/4 (0.11)
--
QF16-075-SRV $6.20
(please login)
Lever Clamps (Aluminum)
KF25 Flanges
1
3/4 (0.34)
--
QF25-100-CHA $43.68
N/A
Cast Clamps (SS)
KF25 Flanges
1
1 (0.45)
--
QF25-100-CS $55.00
(please login)
Centering Ring
(SS with Fluorocarbon O-Ring)
KF25 Flanges
1
1/4 (0.11)
--
QF25-100-SRV $8.25
(please login)
Lever Clamps (Aluminum)
KF40 Flanges
1
3/4 (0.34)
--
QF40-150-CHA $51.57
N/A
Cast Clamps (SS)
KF40 Flanges
1
1-1/2 (0.68)
--
QF40-150-CS $65.00
(please login)
Centering Ring
(SS with Fluorocarbon O-Ring)
KF40 Flanges
1
1/4 (0.11)
--
QF40-150-SRV $12.40
(please login)
Cast Clamps (SS)
KF50 Flanges
1
2 (0.91)
--
QF50-200-CS $76.00
(please login)
Centering Ring
(SS with Fluorocarbon O-Ring)
KF50 Flanges
1
1/4 (0.11)
--
QF50-200-SRV $14.50
(please login)

ISO:9001-2008 The Kurt J. Lesker Company is an ISO:9001-2008 certified company. Copyright ©1996-2014 Kurt J. Lesker Company® All rights reserved.