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KF Vacuum Reducer

KF Vacuum Reducer

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The S4R KF Vacuum Reducer provides a direct transition between two different KF flange sizes within laboratory vacuum and gas-handling systems.

Manufactured from 304 stainless steel, its tapered internal geometry provides a progressive change in nominal connection size while retaining standard KF quick-flange interfaces at both ends. The reducer can be installed using the corresponding KF centering rings, O-rings and quick clamps.

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The S4R KF Vacuum Conical Reducer provides a direct transition between two different KF flange sizes in laboratory vacuum and gas-handling systems. Manufactured from 304 stainless steel, the tapered body provides a progressive change in nominal connection size while maintaining standard KF quick-flange interfaces at both ends.

Key Features

✓ 304 stainless steel construction
✓ Conical transition between different KF sizes
✓ Standard KF quick-flange interfaces at both ends
✓ Removable modular vacuum connection
✓ Five practical S4R configurations
✓ Compatible with matching KF clamps and centering assemblies

Typical Applications

• Laboratory vacuum lines
• Tube furnace vacuum systems
• Vacuum pump connections
• Gas and vacuum manifolds
• Research instrumentation
• Vacuum-system size transitions
Technical Specifications
Product Type KF vacuum conical reducer
Material 304 stainless steel
Geometry Conical reducing transition
Connection System KF quick flange at both ends
Installation Compatible KF centering assemblies and quick clamps
Standard Configurations
KF25 / KF16 Standard
KF40 / KF25 Standard
KF50 / KF25 Standard
KF50 / KF40 Standard
KF100 / KF40 Standard
Connection Principle
Larger KF Side Connects to the corresponding larger KF flange
Transition Conical body provides the change in nominal connection size
Smaller KF Side Connects to the corresponding smaller KF flange
Technical Notes
• Select the reducer according to the KF flange sizes of the two components being connected.
• Each side requires the corresponding KF centering ring, O-ring and quick clamp.
• Ensure that flange and sealing surfaces are clean before assembly.
• Vacuum performance depends on the complete installation and condition of all sealing interfaces.
Supply
1 × KF Vacuum Conical Reducer
KF clamps, centering rings and O-rings not included

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