KF Flexible Hose

The KF Flexible Hose provides a reliable and flexible connection between vacuum components, pumps, and vacuum chambers. Its corrugated stainless steel construction allows movement and alignment adjustments while maintaining a vacuum-tight connection.

Manufactured from high-quality stainless steel, the flexible hose offers excellent mechanical durability and low outgassing characteristics for vacuum and high-vacuum applications. The flexible design helps accommodate minor misalignments and can reduce the transmission of mechanical vibrations between connected vacuum components.

Equipped with standard ISO-KF (QF / NW) flange connections at both ends, the hose can be easily integrated into existing vacuum systems using conventional KF clamps and centring rings with O-ring seals.

Available in stainless steel 1.4301 (AISI 304) and 1.4404 (AISI 316L), providing material options for different vacuum system requirements.

Technical Specifications

Flange Sizes: DN16, DN25, DN40, DN50 KF

Available Lengths: 250 mm, 500 mm, 750 mm, 1000 mm

Materials: Stainless Steel 1.4301 (AISI 304), Stainless Steel 1.4404 (AISI 316L)

Flange Connection: ISO-KF (QF / NW)

Configuration: Flexible corrugated stainless steel hose with KF flanges at both ends

Sealing: Compatible KF centring rings with elastomer O-ring seals

Applications

Suitable for connecting vacuum pumps, vacuum chambers, pumping lines, vacuum manifolds, and laboratory vacuum equipment where flexible connections are required.

The hose is particularly useful for compensating minor installation misalignments, accommodating movement between connected components, and reducing the transmission of vibrations from vacuum pumps to sensitive equipment.

Installation and Compatibility

Compatible with standard ISO-KF flange connections of the corresponding nominal size. Each connection requires a suitable KF centring ring with O-ring seal and a KF clamp.

Compatible KF Centring Rings & Seals and KF Clamps are available separately.

For applications requiring greater flexibility at lower vacuum levels, the KF PVC Hose with Reinforcing Spiral is also available.

The achievable vacuum pressure and operating temperature depend on the selected sealing components and operating conditions. Minimum bending radii and permissible movements should be observed to prevent mechanical damage to the hose.