Description
Stainless Steel KF25 Tee NW25 Vacuum Fitting 3-Port T-Piece 0.6875" Bore
This is a stainless steel KF25 (NW25) tee vacuum fitting with three flanged ports arranged in a T configuration. Each port has a 0.6875-inch (11/16") bore and a standard KF-25 flange face with O-ring seating groove. Overall flange outer diameter is 1-3/16" and body length is approximately 2-3/16". Stamped "TAIWAN" on the body. No centering rings, clamps, or gaskets are included.
Specifications & What's Included
- Flange standard: KF-25 / NW-25 (ISO-KF quick flange)
- Configuration: Tee (T) — three-port, three-way junction
- Number of ports: 3
- Port bore diameter: 0.6875" (11/16")
- Flange OD: 1-3/16"
- Body length: 2-3/16"
- Material: Stainless steel
- Country of manufacture: Taiwan (stamped on body)
- Included: Fitting only — no centering rings, O-rings, or clamps
Applications
KF (Klein Flange) fittings — also called NW or ISO-KF fittings — are the standard quick-connect flange system used in rough-to-medium vacuum systems, typically covering the pressure range from atmospheric down to around 10⁻³ Torr. The KF-25 size is one of the most common in laboratory and light industrial vacuum work. Tee fittings in this format are used throughout vacuum systems to branch a main vacuum line to a gauge port, a valve, a secondary chamber, a leak detector connection, or an additional pump outlet. They are found in vacuum coating systems, electron microscopy sample preparation stations, mass spectrometers, surface science chambers, thin-film deposition equipment, and general laboratory vacuum lines. Connection is made with a standard KF-25 centering ring (with O-ring) and a hinged or wing-nut clamp — no tools required for assembly, making KF fittings practical for systems that are frequently reconfigured.
This stainless steel KF25 NW25 tee vacuum fitting has been inspected and is in good used condition. The body and flanges are structurally sound with no cracks or deformation. The photos show light surface discoloration and oxidation staining on the flange faces — normal for used vacuum hardware — and a 'TAIWAN' country stamp is visible on the body. The O-ring seats (brass-toned interior) appear intact. No centering rings, clamps, or gaskets are included. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Unbranded |
Model: |
KF25 Tee / NW25 Tee |
Type: |
Vacuum Tee Fitting |
SKU: |
47235 |
Flange Standard: |
KF-25 / NW-25 (ISO-KF) |
Number of Ports: |
3 |
Port Bore Diameter: |
0.6875" (11/16") |
Flange OD: |
1-3/16" |
Body Length: |
2-3/16" |
Material: |
Stainless Steel |
Configuration: |
T (Tee) — three-way |
Gasket/Seal Type: |
KF centering ring and O-ring (not included) |
Country/Region of Manufacture: |
Taiwan |
Condition: |
Used – Inspected |
Seller Notes: |
Fitting only; no centering rings, clamps, or gaskets included. |
Compatible With: |
KF25 / NW25 vacuum systems, chambers, pumps, gauges |
Application: |
High/rough vacuum systems, lab vacuum lines, research chambers |
Condition Notes: |
Stainless KF25 NW25 tee vacuum fitting inspected and in good used condition. Body and flanges intact, no cracks. Light surface discoloration on flange faces. O-ring seats appear intact. No centering rings or clamps included. |
