A KF (Klein Flange) flange is a type of flange that is used to create a vacuum-tight seal between two surfaces. KF flanges use a clamping mechanism to create a hermetic seal around the electrical feedthrough, which helps to prevent leaks and maintain a stable vacuum environment. The tapered circular C-clamp creates the correct sealing torque between the mating interfaces to hermetically seal the feedthrough. The two mating surfaces have a flared edge that are clamped together with a center ring between them.
KF flanges are referred to under other names including NW, QF, and DIN flanges.
KF feedthroughs are commonly found in vacuum systems, semiconductor manufacturing, medical device manufacturing, and other industries where maintaining a hermetic seal is of utmost importance. KF Hermetic Feedthroughs can handle a variety of demanding environments. Using a hermetic epoxy, Douglas offers the utmost design flexibility to combine various electrical connections within a single flange. This can increase your density of electrical connection types as well as reduce the total number of feedthroughs required for the system.
From cryogenic temperatures to high-pressure applications, these feedthroughs are engineered to withstand extreme conditions while maintaining a hermetic seal. This adaptability makes them an ideal choice for industries where consistent performance is vital.
Performance Capabilities
< 1×10-8 cc Helium per second standard; others available upon request
Operating temperatures range from 4 K (LHe) through high temperatures of 200°C
Standard tooling and LEAN operational set up to keep your footprint smaller and overhead down, while maintaining quality
Electrical Connection Types
Connectors
Wires
Cables
Optical Fibers
Circuits
Pins
Studs
Common Connector Types
MIL-spec connectors including MIL-DTL-38999, MIL-DTL-5015, MIL-DTL-26482, MIL-DTL-24308, and MIL-DTL-83513
D-sub hermetic connectors for vacuum applications
Micro-D hermetic connectors
Regular and standard density (HDM)
High density (HDD)
Nano-D
Coaxial connectors (SMA, BNC, Triax, SHV, and more)
Thermocouple
Convenience power cables with integral connectors
USB including Type A and C
RJ-45 Ethernet connectors
And more!
Advantages
Various standard interfaces
Hermetic ratings / low leakage rates
Equipment commonly pre-designed with interfaces
Excellent for cryogenic applications
A KF (Klein Flange) flange is a type of flange that is used to create a vacuum-tight seal between two surfaces. KF flanges use a clamping mechanism to create a hermetic seal around the electrical feedthrough, which helps to prevent leaks and maintain a stable vacuum environment. The tapered circular C-clamp creates the correct sealing torque between the mating interfaces to hermetically seal the feedthrough. The two mating surfaces have a flared edge that are clamped together with a center ring between them.
KF flanges are referred to under other names including NW, QF, and DIN flanges.
KF feedthroughs are commonly found in vacuum systems, semiconductor manufacturing, medical device manufacturing, and other industries where maintaining a hermetic seal is of utmost importance. KF Hermetic Feedthroughs can handle a variety of demanding environments. Using a hermetic epoxy, Douglas offers the utmost design flexibility to combine various electrical connections within a single flange. This can increase your density of electrical connection types as well as reduce the total number of feedthroughs required for the system.
From cryogenic temperatures to high-pressure applications, these feedthroughs are engineered to withstand extreme conditions while maintaining a hermetic seal. This adaptability makes them an ideal choice for industries where consistent performance is vital.
Performance Capabilities
- < 1×10-8 cc Helium per second standard; others available upon request
- Operating temperatures range from 4 K (LHe) through high temperatures of 200°C
- Standard tooling and LEAN operational set up to keep your footprint smaller and overhead down, while maintaining quality
Electrical Connection Types
- Connectors
- Wires
- Cables
- Optical Fibers
- Circuits
- Pins
- Studs
Common Connector Types
- MIL-spec connectors including MIL-DTL-38999, MIL-DTL-5015, MIL-DTL-26482, MIL-DTL-24308, and MIL-DTL-83513
- D-sub hermetic connectors for vacuum applications
- Micro-D hermetic connectors
- Regular and standard density (HDM)
- High density (HDD)
- Nano-D
- Coaxial connectors (SMA, BNC, Triax, SHV, and more)
- Thermocouple
- Convenience power cables with integral connectors
- USB including Type A and C
- RJ-45 Ethernet connectors
- And more!
Advantages
- Various standard interfaces
- Hermetic ratings / low leakage rates
- Equipment commonly pre-designed with interfaces
- Excellent for cryogenic applications
