SV & VO Series

The most diverse product offering of high vacuum and ultra-high vacuum relieving and non-relieving seal-off valves available from CIRCOR Energy. Our low profile, compact design and reliable vacuum tight sealing capabilities make these valves the choice for all your vacuum sealing applications.
Whether it be vacuum insulated piping, vacuum chambers, Dewar’s and pressure vessels, or over the road cryogenic transporters these valves will assure long lasting vacuum tight integrity and safety. All our vacuum seal-off valves and tool operators are tested to meet 1 x 10-9 scc GHe/sec mass spectrometer seat leakage.

Return to Products Section
Construction Worker

Not seeing a particular item you're looking for?

Contact Us

Chances are we have it.

Due to the multitude of available parts and pieces, new releases, product discontinuations, replacements, etc., it's possible the item in question or its equivalent is either in stock or otherwise available. We strive to display as much of our products and information online as possible. If we've missed the one you're looking for, we want to know.