Description
MDC 6" OD 4.5" ID Stainless Steel Vacuum Flange w/ 1/4" Tube Gas Fill Port
This MDC stainless steel vacuum flange features a 6-inch outer diameter, 4.5-inch inner diameter, and an integrated 1/4-inch tube fill port for introducing or evacuating process gases. The flange has a machined copper gasket seating groove on its mating face, indicating it mates to a conflat-style or copper-gasketed vacuum interface. It was pulled from a working vacuum chamber used for physical vapor deposition (PVD) sputtering operations.
Specifications & What's Included
- Brand: MDC Vacuum
- Outer Diameter (OD): 6 inches
- Inner Diameter (ID): 4.5 inches
- Fill port tube size: 1/4 inch
- Bolt hole count: 16 holes on bolt circle (visible in photos)
- Sealing surface: Copper gasket seat / groove on mating face
- Material: Stainless steel body
- Includes: Green Swagelok-style fitting cap on fill port tube
Applications
Vacuum flanges of this type are standard hardware in high-vacuum and ultra-high-vacuum (UHV) systems used in physical vapor deposition, sputtering, thin-film coating, and surface science research. The integrated gas fill port allows the chamber to be backfilled with a process gas — such as argon, nitrogen, or oxygen — without breaking the primary vacuum seal, which is a common requirement in reactive and inert-gas sputtering processes. MDC Vacuum (MDC Precision) is a well-known US manufacturer of vacuum components and hardware serving the semiconductor, research, and aerospace industries. Flanges like this one are typically used on deposition chambers, load-lock chambers, and bell-jar-style vacuum vessels. The copper-gasketed mating face style is associated with high-integrity vacuum seals capable of reaching high- and ultra-high-vacuum pressures, making this a higher-specification fitting than a simple elastomer-sealed flange.
This MDC stainless steel vacuum flange was pulled from a working vacuum chamber used for sputtering under various process gases. It appears to be in good used condition overall. The mating face shows a copper gasket seat ring with light discoloration consistent with vacuum service use. The flange body and bolt-hole ring have surface oxidation and light soiling typical of equipment pulled from a process chamber environment. The 1/4" tube fill port is intact, and a green fitting cap is included. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
MDC |
Model: |
6" OD 4.5" ID Vacuum Flange |
Type: |
Stainless Steel Vacuum Flange with Gas Fill Port |
SKU: |
27731 |
Outer Diameter (OD): |
6 inches |
Inner Diameter (ID): |
4.5 inches |
Fill Port Tube Size: |
1/4 inch |
Material: |
Stainless Steel |
Application: |
High Vacuum / PVD Sputtering Chambers |
Bolt Hole Count: |
16 (visible in photos) |
Sealing Surface: |
Copper gasket seat visible on mating face |
Compatible With: |
Vacuum deposition and sputtering systems |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Pulled from a sputtering vacuum chamber. Green cap on fill port tube included. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Flange / Vacuum Fitting |
Condition Notes: |
MDC stainless steel vacuum flange pulled from a working sputtering chamber. Good used condition with light oxidation and process discoloration on the mating face and body. Fill port intact; green fitting cap included. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |