Stainless Steel DN50 KF50 Tubing Lot 135 Ft OD 2" ID 1.85" Straight Bent Pipe

Stainless Steel DN50 KF50 Tubing Lot 135 Ft OD 2" ID 1.85" Straight Bent Pipe

This is a surplus lot of stainless steel tubing in the DN50/KF50 (NW50) size, totaling approximately 135 feet across a mixed collection of straight lengths, bent/elbow sections, and pieces with and without KF-style flanged ends. Tube outer diameter is 2" (51mm) and inner diameter is 1.85" (47mm), consistent with the DN50/NW50 standard used in vacuum and process piping applications.

Specifications & What's Included

• Material: Stainless steel
• Nominal size: DN50 / NW50 / KF50
• Tube outer diameter: 2" (51mm)
• Tube inner diameter: 1.85" (47mm)
• Flange outer diameter (majority of flanged pieces): 2.95" (75mm)
• Flange inner diameter: 2.09" (53mm)
• Total accumulated length: approximately 135 ft
• Longest individual piece: 87"
• Shortest individual piece: 7"
• Pipe configurations: straight sections, bent/elbow sections, flanged ends, and plain (non-flanged) ends
• Yellow markings visible on many pieces (production or routing identifiers)
• Sold as a pallet lot — all pieces shown in photos are included

Applications

DN50/KF50 (also referred to as NW50) stainless steel tubing is used in vacuum systems, industrial process piping, semiconductor fab, chemical processing, and laboratory installations where clean, corrosion-resistant plumbing is required. The KF (Klein Flange) standard is a quick-connect flange system widely used in vacuum equipment, allowing tool-free assembly with clamps and centering rings. The 2" OD DN50 size is common in medium-to-large vacuum chambers, load-lock systems, and process gas lines. Stainless construction makes this tubing suitable for high-purity, corrosive, or elevated-temperature environments. This type of surplus tubing lot is commonly purchased by research labs, fab facilities, and vacuum system integrators needing custom-length runs or replacement sections without ordering new stock.