Kf Chain Clamp SS316L Kf16/Kf25/Kf40/Kf50 High Quality Vacuum Clamp
Application
Chain clamps are particularly suitable for environments that require frequent disassembly, high sealing reliability, or equipment vibration.
·For occasions with high sealing requirements, such as semiconductor manufacturing, biopharmaceuticals (freeze-drying machines, sterilization cabinet pipelines), and other high cleanliness and high vacuum processes.
·In situations where rapid maintenance is required: In scientific research experimental systems, it is necessary to frequently replace or adjust pipeline configurations.
·In situations where vibration exists: connecting equipment such as vacuum pumps that generate vibration during operation.
Features
Compared with traditional two - piece or claw clamps, chain clamps mainly have the following characteristics:
· Superior sealing performance: By evenly distributing the locking force through multiple chain links, the O - ring is evenly squeezed, achieving more reliable sealing.
· Easy to operate and durable: They are ergonomic, requiring less force on the hands when locked. Easy loading and unloading can reduce wear on the flange surface.
· Strong anti - vibration ability: When the equipment vibrates, its structural design can effectively prevent the clamp from accidentally loosening.
· Extend the lifespan of the sealing ring: Uniform force can prevent excessive local compression of the O - ring, thereby extending its service life.
Specifications
Size standard
The common KF caliper sizes correspond to the nominal outer diameter of the connecting pipeline, mainly including KF16, KF25, KF40, KF50, etc. For larger pipelines (such as 2 inches/50mm or more), ISO flanges and corresponding multi - caliper systems are usually used.
- Material
Mainly made of aluminum or stainless steel (such as 304, 316). Aluminum material is relatively light and suitable for conventional environments; stainless steel has better corrosion resistance and high - temperature resistance.
- Temperature and vacuum degree
- Temperature range: depends on the matching O - ring. When using Viton rubber, the temperature is about 150 °C, and when using NBR rubber, it is about 80 °C.
- Vacuum degree: The KF system can achieve a high vacuum level of up to 10 ⁻⁸ mbar/torr.

| Size | A (mm) | B(mm) | C(mm) |
| KF16 | 55 | 23 | 18 |
| KF25 | 59 | 33 | 18.5 |
| KF40 | 80 | 45 | 20 |
| KF50 | 92 | 64 | 20 |





