High Sealing
With the Helium leakage testing and ensure that Helium leak rate better than 10-9 Pa · m3/s.
High Precision
With domestic and foreign high-precision CNC machining equipment ensure the high quality of vacuum products.
Corrosion resistance
Made of materials such as stainless steel 304/316L and other material to improve Corrosion resistance.
Diversification
Special Materials,sizes and connection methods can be available upon the request.
Reliable sealing and precise control
Tubulated Adapter

Vacuum Tubulated Adapter is a core adapter fitting in vacuum systems, whose primary function is to enable seamless connection between vacuum pipes/equipment with different standard interfaces, pipe diameters, or materials.

Conical Reducing Adapter

Vacuum Conical Reducing Adapter is a core vacuum system component, enabling precise transitional connection between pipes/equipment of different diameters or interface standards. Its conical design integrates high sealing, low flow resistance, and structural stability, ensuring leak-free vacuum integrity.

VCR Adapter

The Vacuum VCR Adapter is a high-precision connecting component based on VCR (Vacuum Coupling Retainer) vacuum coupling locking technology, achieving zero-leakage sealing through its "metal hard seal + locking structure.

Rubber Hose Adapter

The Vacuum Rubber Hose Adapter is a flexible adapter in vacuum systems specifically designed for precise connection between rubber hoses, pipes, and equipment interfaces. It effectively absorbs pipeline vibrations, compensates for installation deviations, while maintaining the vacuum tightness of the system.

Swagelok Adapter

Vacuum Swagelok Adapter is a high-precision vacuum adapter based on Swagelok's core ferrule sealing technology. Designed for precise connection of pipes, equipment, and different interfaces in vacuum systems, it delivers high sealing performance and structural stability via "ferrule sealing + precision structure.

Quick Disconnect Adapter

Vacuum Quick Disconnect Adapter is a high-precision connecting component designed specifically for quick assembly/disassembly in vacuum systems, compatible with low, medium, and high vacuum conditions.

Why choose ruijia's
Vacuum Adapters
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.
Learn More
What are the common types of vacuum adapters?

The common types of vacuum adapters have Tubulated Adapter, Conical Reducing Adapter, VCR Adapter, Rubber Hose Adapter, Swagelok Adapter and Quick Disconnect Adapter.

How to choose a suitable vacuum adapter based on vacuum system requirements?

Vacuum level matching:Low/medium vacuum (≥10⁻⁵ Pa): Rubber-sealed adapters such as KF, threaded, or hose adapters (e.g., Rubber Hose Adapter) can be selected;High/ultra-high vacuum (<10⁻⁵ Pa): Metal-sealed adapters like CF, VCR, or Swagelok adapters must be chosen to ensure low leak rates.

Interface compatibility: Select the corresponding adapter according to the interface type of the components to be connected in the system (such as flanges, threads, ferrules). For example, when connecting a KF flange to a steel pipe, a KF to Swagelok reducing adapter can be selected.

How to correctly install a vacuum adapter?

To correctly install a vacuum adapter, it is necessary to ensure reliable sealing and stable connection. The steps are as follows: clean the interfaces, install the seals, align accurately, fasten evenly, and verify leak tightness.

What materials are vacuum adapters made of?

Common materials and their applicable scenarios:Stainless steel (304/316): Corrosion-resistant and high-temperature resistant, suitable for high-vacuum and corrosive environments.

How to troubleshoot air leakage in vacuum adapters during use?

1)Check the seals: See if they are aged, damaged, or mismatched in size.

2)Clean the sealing surfaces: Check for oil stains or scratches, then clean or polish them for repair.

3)Inspect tightness: Check if flange bolts are evenly tightened, and if threads/ferrules are loose or over-tightened.

4)Check the material: Corrosive media may corrode the material, causing air leakage.

5)Use tools: Locate the leak with a helium leak detector or soapy water, then replace or repair accordingly.

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