What are the performance characteristics of VCR connectors?

The VCR connector is easy to install and has a small disassembly gap, allowing for repeated disassembly (reinstallation after disassembly requires replacement of new gaskets). So, do you know the performance characteristics of VCR connectors? 
 

The performance characteristics of VCR connectors are as follows: 
 

VCR connectors have high cleanliness (components undergo processes such as electropolishing and cleaning) and good sealing, making them particularly suitable for high-purity systems, high vacuum systems, and high-pressure systems that require no leakage. Due to the use of metal sealing components, the rated operating temperature range of VCR joints is relatively wide (VCR joints with SUS316L gaskets can reach a temperature rating of 537 ℃). 
 

Welding is required between the gland of the VCR connector and the TUBE tube. VCR fittings - generally used in conjunction with automatic welding joints. Use automatic welding fittings in areas that do not require disassembly, and use VCR fittings in areas that require disassembly, such as valves and equipment interfaces. 
 

In terms of VCR connector material, the material of the gland, body, and nut is generally SUS316 or SUS316L. The material of gaskets is generally SUS316L nickel or copper (copper gaskets are rarely used now), and gaskets are divided into silver plated and non plated types. 
 

Many manufacturers combine VCR fittings (metal face sealed fittings) and automatic welding fittings on their samples, and some manufacturers also refer to these two types of fittings as Clean Fitings.