Vacuum Flange Insert Check Valve Style – VI

The Vacuum Flange Insert (VI) is a vacuum check valve designed to fit between ISO/NW/KF/QF vacuum flanges designed in accordance with DIN 28403, DIN 28404, ISO 1609, and ISO 2861. It is both a centering ring and a check valve. The compact design requires no additional space in the line. Its size makes it extremely economical when compared to full-bodied valves.
The VI valve can also be used as a low-pressure relief valve under either positive or vacuum conditions by using the desired spring setting.


NOTE: USP Class VI o-rings can be supplied with certification.

For additional information about Check Valves

What is a Silent Check Valve?
What is a Spring Loaded Check Valve?
What is a Poppet Check Valve?
What is an Inline Check Valves?

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