Product Overview
KF50 NW50 Butt Weld Vacuum Fitting for 2 Inch OD High Vacuum Tube
Condition
Single unit available. Unused NOS condition with no issues noted during visual evaluation. Evaluation: Visual inspection only. Function testing not performed. Packaging is a bit beat up, but the part is in great shape and looks unused. Obtained from a government research facility and covered by our No Hassle PartsMine Guarantee.
Ships same business day from Idaho. Packed carefully.
Product Overview
Kurt J. Lesker QF50-200-LF is a KF50 half nipple for high-vacuum plumbing. It provides a KF50 flange interface on one side and a 2.00 inch OD butt weld tube end on the other for permanent installation in stainless vacuum lines.
Key Features
- KF50 flange size, also known as NW50 or QF50
- 2.00 inch OD butt weld tube connection
- 304L stainless steel construction
- Flange OD: 2.95 inches
- Bore ID: 1.835 inches
- Overall length: 1.58 inches
- Requires KF50 centering ring, KF50 clamp, and mating KF50 flange
Applications
- High vacuum process chamber plumbing
- Gas delivery and roughing line fabrication
- Mass spectrometer and sputter coater vacuum systems
- ALD and semiconductor vacuum line service
Frequently Asked Questions
What tube size does this half nipple fit?
It is made for professional TIG butt welding to 2.00 inch OD tubing.
Is this compatible with CF or ISO-K flange systems?
No. It is for KF50 NW50 QF50 hardware and is not compatible with CF or ISO-K systems without an adapter.
What is needed to seal the flange side?
You need a KF50 centering ring, a KF50 clamp, and a mating KF50 flange.
Is this the aluminum version?
No. This part is 304L stainless steel.
Good choice for buyers who need a KF50 to 2 inch OD butt weld connection in 304L stainless. Verify your flange standard and tube size before ordering.
