Kf Clamp Flange 50 25
- Model:
- Brand:
- J&O
- Material:
- Stainless Steel/Aluminum
- Connection:
- Clamped
- Payment:
- T/T, L/C, Western Union
A KF clamp joins matching KF flange faces and applies circumferential force to maintain a vacuum connection. The centering ring keeps the O-ring aligned between the flange faces, while even compression forms the seal. Correct fit depends on the flange profile, clamp design, and sealing components working together.
Confirming the Mating Profile
A kf flange clamp must seat evenly around the chamfered outer edges of both flanges. A clamp designed for a standard tube joint may differ from a bulkhead clamp intended to secure a port to a chamber wall or mounting plate. Similar size labels do not guarantee identical mounting geometry, so the actual interface should be checked before replacement.
Selecting the Correct KF Size
For a kf25 clamp, confirm the flange family and centering ring used in the assembly. A kf 50 clamp corresponds to the larger KF50 interface, but physical clearance and clamp style still matter. KF, NW, and DN labels can appear across vacuum component catalogs; dimensional drawings provide a more reliable basis for matching parts than the label alone.
| Fitment Check | What to Compare | Possible Issue |
|---|---|---|
| Flange profile | Outer taper and mating geometry | Uneven contact |
| Centering ring | Diameter and seating position | Misalignment |
| O-ring | Size, condition, and material | Vacuum leakage |
| Clamp closure | Hardware and available clearance | Incomplete clamping |
| Material | Corrosion exposure and operating conditions | Premature wear |
Preventing Seal Misalignment
Keep flange faces clean and free from scratches, burrs, and residue. Inspect the O-ring for cracks, flattening, swelling, or contamination, then confirm the centering ring sits concentrically. Uneven gaps or persistent leakage can indicate a mismatched component or damaged seal. Extra tightening cannot correct an incorrectly sized ring or a defective O-ring.
Material and Assembly Checks
Stainless steel and aluminum offer different combinations of corrosion resistance, strength, and weight. The selected material must suit the surrounding environment and the actual assembly requirements. Confirm the supplied configuration and fastener arrangement before installation, then follow the specified closure procedure and vacuum leak-test requirements.
Reliable KF connections depend on correct geometry and controlled seal compression, not force alone. Matching the clamp to the complete flange assembly reduces fitment errors and makes maintenance more predictable.
Product Description
| Product Name: | NW KF Blot 2-part Vacuum Clamp |
| Size: | 3/4"-2" |
| Material： | SS304 |
| Machine： | CNC Lathe Machine |
| Connection: | Tri Clamp |
| SurfaceTreatment: | Ra≤0.8 |
| Gasket | Food Grade Silicone, Viton, PTFE |
| Type | Ferrule; elbow; tee; cross, hosebarb etc. |
| Optional | Customized tri clamp fitting available |
| Packing Details: | within carton box or plywood case |
| Applied Industries: | Chemical, gas, petrochemical, electric power, metallurgy, medical, food and pharmaceutical industry |
