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APCO Vacuum Relief/Air Inlet Valves (AVR)

Brand: Apco
Does not ship to OH, United States
Vacuum Relief/Air Inlet Valves are normally closed valves. 

When the system pressure becomes negative, the valve opens, allowing air into the system to prevent a vacuum from building. 

When system pressure returns to positive, the Vacuum Relief/Air Inlet Valve closes air tight. 

Standard Vacuum Relief/Air Inlet Valves are designed to open with a minimal, 1/4 psi pressure differential across the orifice.  Higher or lower relief settings are available to suit the application.
Vacuum Relief/Air Inlet Valves are normally closed valves. 

When the system pressure becomes negative, the valve opens, allowing air into the system to prevent a vacuum from building. 

When system pressure returns to positive, the Vacuum Relief/Air Inlet Valve closes air tight. 

Standard Vacuum Relief/Air Inlet Valves are designed to open with a minimal, 1/4 psi pressure differential across the orifice.  Higher or lower relief settings are available to suit the application.
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Specifications

Brand

Body Material

  • Cast Iron, Ductile Iron, Carbon Steel, 316 Stainless Steel

Body Type

  • Series 1500

Pressure Rating

  • ASME Class 125 & 250 Class

Size Range

  • 3-36” (80-900 mm)
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