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ANDERSON GREENWOD Breathing Valves
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4020 Atmospheric Pressure and Vacuum Relief Valves
4020 Atmospheric Pressure and Vacuum Relief Valves
Main Features
Fully open at 10% over pressure, enabling setting close to MAWP/MAWV and minimizing tank emissions.
Flow tests certified by third-party inspection organizations
Spring operated up to 12"
Specifications
Valve Size: NPS 2 to NPS 12
Pressure Rating: ANSI 150, PN16
Process connection type: flanged
Material: aluminum, carbon steel, stainless steel
Other configurations: Contact us for more information on specifications or options for this product
Applications
