Description
Vacuum Pump Bellows Connector Fitting 0.6875" to 0.75" Bore Aluminum 3" Long
Aluminum bellows connector fitting designed to join vacuum pump hoses or bellows with different bore sizes. The stepped bore accommodates transitions between 0.6875" and 0.75" diameter connections.
Specifications & What's Included
- Material: Aluminum
- Small bore diameter: 0.6875" (11/16")
- Large bore diameter: 0.75" (3/4")
- Top flange diameter: 2.625"
- Bottom flange diameter: 1.1875"
- Overall length: 3"
- Body: Knurled cylindrical with flanged ends
- Seal: O-ring (integrated)
- Single fitting only; no additional hardware included
Applications
Bellows connectors are used in vacuum pump systems, laboratory equipment, and industrial machinery to create flexible, sealed transitions between different hose or port sizes. These fittings accommodate slight misalignment and vibration while maintaining vacuum integrity. Commonly found in older pump assemblies and retrofit applications where bore size adaptation is required.
Condition: Used
This vacuum pump bellows connector fitting has been inspected and is in good used condition. The machined aluminum body shows light surface wear consistent with prior use, and some residual lubricant or sealant is visible inside the bore near the O-ring seat — visible in the photos. The knurled body and both flanged ends are intact with no cracks or deformation noted. 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.
This vacuum pump bellows connector fitting has been inspected and is in good used condition. The machined aluminum body shows light surface wear consistent with prior use, and some residual lubricant or sealant is visible inside the bore near the O-ring seat — visible in the photos. The knurled body and both flanged ends are intact with no cracks or deformation noted. 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
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
Unbranded |
Model: |
Bellows Connector Fitting |
Type: |
Vacuum Pump Bellows Connector Fitting |
SKU: |
47234 |
Condition: |
Used – Inspected |
Material: |
Aluminum |
Small Opening (Bore) Diameter: |
0.6875 in (11/16 in) |
Large Opening (Bore) Diameter: |
0.75 in (3/4 in) |
Top (Flange) Diameter: |
2.625 in (2 5/8 in) |
Bottom (Flange) Diameter: |
1.1875 in (1 3/16 in) |
Overall Length: |
3 in |
Body Style: |
Knurled cylindrical body with flanged ends |
Seal: |
O-ring seal (visible in bore) |
Application: |
Vacuum pump bellows / hose connection |
Seller Notes: |
Single fitting only. No additional hardware included. |
Condition Notes: |
Vacuum pump bellows connector fitting, inspected and in good used condition. Light surface wear on the aluminum body; some residual lubricant visible in bore near O-ring seat. Flanges and knurled body are intact, no cracks. |
