Compact and Able to Handle Heat: The VB0451 Valve

Here's a new addition to our line of space-saving process interface valves

The latest addition to our double block and bleed lineup is the VB0451, pictured above. This metal-seated process interface valve allows for an extended temperature range and greater resistance to particulate containing liquids.

Over the years we've written about some of our space-saving process interface valves, from the VB03 and VB04 for ordinary service, to the VN01 for severe service.

There's one more member of the family worth mentioning, because it's a new addition to our inventory in the past year: the VB0451. It's a metal-seated process interface valve that offers an extended temperature range and greater resistance to particulate-containing liquids than standard process interface valves.

As with all of our process interface valves, the VB0451's compact size and reduced weight means that it takes up less space and requires less support structure. Because it's a single-valve unit, you can install it faster than the more traditional three-valve assembly for the same job. Having a single unit also means fewer leak points and less required maintenance.

Taking the heat

Beyond the basics, though, the VB04051 can stand up to high temperatures. Where the VB04 is rated up to only 204ºC, the VB0451 can handle temperatures up to 310ºC, and up to 280°C for duplex valve assemblies.

Swagelok tests every metal-seated process interface valve hydrostatically at the factory to a requirement of no visible leakage. A shell test is performed at 1.5 times maximum rated working pressure, and a seat test is performed at 1.1 times maximum rated working pressure. These valves are tough.

Swagelok also performs a low-pressure gas seat test, and fugitive emission testing is available on request. Metal-seated process interface valves for sour gas service are available as well.

Other features

The VB0451 valve features double block-and-bleed design in a compact ball/needle/ball configuration. The one-piece forged body is available in carbon steel, 316 stainless steel or Duplex stainless steel.

The process connections can be from half-inch to two-inch flanges, and the outlet valve is available as a flange or a half-inch female NPT connection.

A lockable handle is standard.

If you'd like to learn more, call Edmonton Valve & Fitting at 780-437-0640 or contact us through our website, and we'll be glad to answer your questions.

Additional resources

• Space-Saving Process Interface Valves: VB03 and VB04
• VN01: A Space-Saving Valve For Severe Service