Kf Clamp 16 25 40
- Model:
- Brand:
- J&O
- Material:
- Stainless Steel/Aluminum
- Connection:
- clamped
- Payment:
- T/T, L/C, Western Union
A kf clamp connects two compatible ISO-KF vacuum flanges around a centering ring and O-ring to create a removable vacuum joint. The pressure-vessel clamp configuration suits vacuum chamber ports and process vacuum piping where quick assembly, flange alignment, and seal inspection are required. Stainless steel construction is suitable for vacuum systems that require mechanical strength and a clean connection.
Clamp Force Around the Vacuum Flange
The clamp sits around the mating flange edges and applies force toward the joint center. The centering ring keeps the flanges aligned, while the O-ring forms the sealing interface. A stable vacuum connection therefore depends on the flange, centering ring, O-ring, and clamp working as one assembly.
Sealing Surface Condition
The flange faces should remain free from scratches, particles, and residue before assembly. The O-ring should sit correctly inside the centering ring without twisting or displacement. Excess tightening does not correct poor alignment or damaged sealing surfaces.
| Connection part | Function | Inspection point |
|---|---|---|
| KF flange | Provides the mating seal face | Size and surface condition |
| Centering ring | Positions the O-ring | Correct seating |
| O-ring | Forms the vacuum seal | Wear and contamination |
| Clamp | Holds the flange pair together | Hinge and tightening condition |
KF16 KF25 and KF40 Size Matching
A kf 16 clamp, kf25 clamp, and kf40 clamp correspond to different ISO-KF flange interfaces. KF16 is matched with DN16 hardware, KF25 with DN25, and KF40 with DN40. The clamp, centering ring, O-ring, and mating flanges should use the same interface size to avoid connection mismatch.
Fixed Vacuum Port Installation
A kf clamp suits vacuum chamber ports and fixed vacuum lines where a removable mechanical connection is preferred. Flange geometry, sealing material, alignment, and the required vacuum level all affect the performance of the complete joint.
Maintenance During Repeated Service
Repeated assembly can gradually affect O-rings, flange surfaces, hinge components, and tightening mechanisms. Inspection before reassembly can reduce leakage caused by worn seals, contamination, or surface damage.
FAQ on KF Clamp Selection
What does a kf clamp connect?
It joins two compatible ISO-KF flanges with a centering ring and O-ring between them.
How should a kf 16 clamp be matched?
It should match the KF16 flange profile and use a compatible centering ring and O-ring.
What should be checked before using a kf40 clamp?
Flange size, sealing faces, O-ring condition, alignment, and the intended vacuum conditions should be checked together.
Product Description
| Product Name: | Pressure Vessel Clamp |
| Size: | KF63ISO-KF630ISO |
| 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 |
