The Y690VB Series vacuum breakers are used for precise control of small capacity, low-pressure service applications where an increase in vacuum must be limited. These direct-operated vacuum breakers come in 3/4 or 1-inch (DN 20 or 25) body sizes and have a 1/4-inch (6,4 mm) or 1/2-inch (12,7 mm) orifice.
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Body Sizes
3/4 or 1-inch (DN 20 or 25)
Orifice Size
1/4-inch (6,4 mm) or 1/2-inch (12,7 mm)
Material Temperature Capabilities
Nitrile (NBR): -20 to 180°F (-29 to 82°C)
Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)
Ethylenepropylene (EPDM): -20 to 275°F (-29 to 135°C)
Fluoroelastomer (FKM): -20 to 300°F (-29 to 149°C)
Additional Technical Data
For additional technical information,
contact your local Sales Office or refer to technical documentation.
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