Stainless Steel KF/NW Vacuum Compressible Bellows Flexible Hoses KF16-KF100
Ruijia vacuum flexible hoses range consists of lots of different type of flexible metal hoses, such as KF / CF / ISO flange type , Braided cover and One Flange Rotatable. KF Vacuum bellows has been used in many ways vacuum, pressure, and fluid transport plumbing.
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Vacuum KF/NW Flexible Hoses bellows KF10-KF100 Stainless Steel 304
Ruijia Vacuum Flexible Hoses are tubular devices used for transporting media such as gases and liquids in industrial, scientific research and other fields. They are usually made of stainless - steel materials or special rubbers to ensure their flexibility and compressive strength.
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KF Braided bellows vacuum flexible hose KF16-KF50 Stainless Steel
Ruijia vacuum braided flexible hose can be better adapted to complex conditions and frequent bending operations, and to a certain extent to prevent the hose from being scratched or abraded by external objects, to ensure the sealing and stability of the vacuum environment.
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Why choose us
High quality raw materials
Using high-quality materials such as stainless steel andaluminum,it has excellent corrosion resistance, hightemperature resistance, and pressure resistance
Advanced technology and equipment
Vacuum welding and heat treatment, high-precision CNC andfive axis machining, helium mass spectrometry leak detectionensuring high precision and high performance.
Comprehensive testing and quality control
Equipped with complete testing equipment such as heliummass spectrometer and spectrometer, ensuring that eachproduct meets the highest quality standards.
Frequently asked questions
We also have a dedicated FAQ page where we try to answer other questions. Visit the FAQ page.
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What international standards do your products meet?

Compliant with SEMI, ASME BPE, ISO 286; RoHS/REACH test reports available.

What is the lifespan of vacuum bellows?

Standard: ≥500K cycles (±10% stroke); Reinforced: ≥1M cycles.

Do your products meet semiconductor cleanliness standards?

Yes, compliant with ASTM E595 outgassing, particles ≤ISO Class 4.

How to adapt between flange standards (e.g., CF to KF)?

Dedicated adapters (with seals) for 20+ combinations like CF-KF/CF-ISO.

What surface finishes are available for vacuum chambers?

Machine polish (Ra0.8μm), Electropolish (Ra0.4μm), Passivation (anti-oxidation).

News
KF Clamp Tightening: How Much Torque Is Actually Enough?
Determining adequate tightening torque for ISO-KF clamp connections, with size-based reference ranges and practical “eno...
2026-10-23
KF25 vs KF40 vs KF50: Selecting by Pump Speed and Line Length, Not Just Similar Inner Diameter
Selecting among KF25, KF40 and KF50 quick-connect flange sizes by evaluating how line conductance limits effective pumpi...
2026-10-19
Why KF Quick-Connect Fittings Are So Widely Used in Modular Vacuum Systems
Learn why KF quick-connect fittings are widely used in modular vacuum systems. Compare KF with ISO and CF flanges, revie...
2026-10-10
Why KF Seals Fail: Centering Ring & O-Ring Guide
Most KF vacuum seal failures trace back to the centering ring or O-ring — not the clamp. Learn how to select, match, and...
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Quick response within 24h

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